Abstract

1-6 alkylene group; and n is an integer of at least 1; provided that at least one X cannot be a (meth)acryl group; and (iii) an initiator system; optionally a polyacidic polymer having polymerizable double bonds; and optionally water.

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61K 6/00 - Preparations for dentistry
• A61K 6/09 - Polyurethanes
• C07C 233/09 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton
• C07C 233/20 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
• C08F 122/38 - Amides

Abstract

A flexible arch model (FAM) is computed to capture and parameterize the variations of the multiple real dental arches in a training set to reconstruct missing teeth in a patient's dental anatomy. Building the FAM includes acquiring multiple sets of digitized dental arches with a pair of maxillary (upper) and mandibular (lower) jaws in the right relative position and gathering a pre-defined set of landmark points on the occlusal surface of each arch all in the same order and same corresponding positions across multiple samples. The gathered vectors of landmark points are used to perform statistical modeling (e.g. Principal Component Analysis) to create a linear subspace of the feature points with the basis of principal components (when PCA is used) found during the procedure.

IPC Classes  ?

• A61C 3/00 - Dental tools or instruments
• A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools
• A61C 13/00 - Dental prosthesesMaking same
• A61C 19/04 - Measuring instruments specially adapted for dentistry
• G06F 17/50 - Computer-aided design
• G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics G16H)

Abstract

A package (10, 10') for securing an orthodontic bracket (30) includes a pocket (12, 71) having an inclined floor (40, 70) and a mechanical locking device (51, 71) for removably holding the bracket (30) in the pocket (12, 71) until it is intentionally removed by a user.

IPC Classes  ?

• A61C 19/02 - Protective casings, e.g. boxes for instrumentsBags

Abstract

Disclosed is a method for reading a two-dimensional code (17) by means of a camera (1) used for the three-dimensional optical measurement of an object using triangulation. Said method comprises the steps of placing the camera (1) above the two-dimensional code (17), having a white light source (5) of the camera (1) illuminate the code (17), having the camera (1) capture an image (18) of the code (17), and having an arithmetic unit (6) read data encrypted in the code (17) from the image (18) of the code (17).

IPC Classes  ?

• G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
• G06K 7/14 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
• G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
• G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
• G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• G06T 7/521 - Depth or shape recovery from laser ranging, e.g. using interferometryDepth or shape recovery from the projection of structured light

Abstract

The invention relates to an optical measuring system (1) and to a method for measuring an object (9) in a three-dimensional manner. The measuring system (1) has at least one lens array (5), a first convex lens (6) arranged downstream, a second convex lens (8) which is arranged further downstream and which faces an object (9) to be measured, and additionally a means (7) which absorbs incident light or deflects incident light out of the illuminating beam path and which is arranged upstream of the second convex lens (8) or on the second convex lens (8) on a second convex lens (8) face facing the first convex lens (6) in the region of the optical axis (10).

IPC Classes  ?

• G01C 11/12 - Interpretation of pictures by comparison of two or more pictures of the same area the pictures being supported in the same relative position as when they were taken
• A61C 9/00 - Impression methods specially adapted for dental prostheticsImpression cups therefor
• G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
• G02B 21/00 - Microscopes
• A61B 1/24 - Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopesIlluminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressorsInstruments for opening or keeping open the mouth
• G02B 1/11 - Anti-reflection coatings
• G02B 3/00 - Simple or compound lenses
• G02B 5/00 - Optical elements other than lenses
• G02B 5/09 - Multifaceted or polygonal mirrors
• H04N 13/02 - Picture signal generators

Abstract

A method in which a digital picture of the tip of a dental scaler tool and other uniquely identifying characteristics is used to measure the extent of wear on the tool. Unique characteristics of the dental scaler tool, such as color and shape of the grip, narrow a set of reference images to a subset of likely matching tip reference images. A digital contour of the worn tip is isolated. Characteristics of the physical shape of each available tips have been stored in a digital library of reference images. The same tip shape characteristics are developed for the tip contour that were stored for each reference image. The digital profile of the worn tip and a matching, selected reference image of the tip from a library of digitally overlaid. An accurate measurement of the extent of wear of the insert tip is made and displayed.

IPC Classes  ?

• A61C 3/00 - Dental tools or instruments
• A61C 3/03 - Instruments operated by vibration
• A61C 19/04 - Measuring instruments specially adapted for dentistry
• A47G 1/14 - Photograph stands

Abstract

Generating a crown model using a statistical method (such as k-means clustering, principal component analysis (PCA), or similar statistical methods) can result in a crown model that is missing sharpness details below the threshold of the statistical technique. A method is provided to add back the sharpness to the resulting model by combining a single full-featured example into the algorithms generating the statistical model. The end result is a crown model that is relatively simple to produce and manipulate in real time, yet maintains the anatomical sharpness of a natural tooth.

IPC Classes  ?

• A61C 13/00 - Dental prosthesesMaking same

Abstract

The invention relates to a support body (10) for a blank, whereby the support body possesses a receiving opening (13) for the blank that is surrounded by an inner circumferential surface (14), which terminates in an upper and a lower edge (26, 28), and whereby a blank fixed in position within the support body is bonded to the latter by means of an adhesive agent. In order to be able to easily introduce the adhesive agent into a gap between the blank and the support body it is intended that the inner circumferential surface (14) possesses at least one depression (18, 20, 22, 24) and/or elevation extending to accommodate the adhesive agent.

IPC Classes  ?

• A61C 13/00 - Dental prosthesesMaking same

Abstract

A catheter, and preferably a urinary catheter, is disclosed, comprising an elongate shaft, an insertable end formed in or connected to one end of the elongate shaft, and a discharge end formed in or connected to the opposite end of the elongate shaft. Further, the catheter further comprises an insertion aid at least partly encircling the discharge end, and being integrally and releasably connected to the discharge end. Hereby, easy production is achieved, and at the same time, the insertion aid may easily be removed for use as an insertion aid when using the catheter.

IPC Classes  ?

• A61M 25/00 - CathetersHollow probes
• A61M 25/01 - Introducing, guiding, advancing, emplacing or holding catheters
• B29C 45/26 - Moulds

Abstract

90≦80 μm, lithium silicate crystals being present in an amount of 10 to 90% by volume.

IPC Classes  ?

• C03C 10/04 - Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase
• A61K 6/027 - Use of non-metallic elements or compounds thereof, e.g. carbon
• A61C 13/00 - Dental prosthesesMaking same
• C03C 4/00 - Compositions for glass with special properties
• C03C 10/00 - Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
• C03B 32/02 - Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
• C03B 19/06 - Other methods of shaping glass by sintering
• C03B 19/10 - Forming beads
• C03B 32/00 - Thermal after-treatment of glass products not provided for in groups , e.g. crystallisation, eliminating gas inclusions or other impurities
• C03C 3/097 - Glass compositions containing silica with 40% to 90% silica by weight containing phosphorus, niobium or tantalum
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth

Abstract

A method for controlling a magnetostrictive ultrasonic transducer of the type used in a magnetostrictive ultrasonic dental scaler includes generating a drive signal for a resonant circuit using a full bridge synchronous class D amplifier. The electrical signal output by the resonant circuit drives an excitation coil that generates an electromagnetic field that causes the magnetostrictive ultrasonic transducer to vibrate. A feedback wire is rendered unnecessary by measuring current and voltage outputs of the resonant circuit and quadrature sampling the measured current and voltage outputs at the same sampling rate as used for the generation of the electrical signal by the resonant circuit. A pulse width modulated signal is generated from the quadrature sampled sensed current and voltage that represents a pulse train approximation of a sine wave of the drive signal for, in turn, being applied to the full bridge synchronous class D amplifier to generate the drive signal for the resonant circuit. Changes in the pulse widths of the pulse train change the amplitude of the drive signal.

IPC Classes  ?

• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
• A61C 1/00 - Dental machines for boring or cutting
• A61C 17/20 - Power-driven cleaning or polishing devices using ultrasonics

Abstract

A method for controlling a magnetostrictive ultrasonic transducer of the type used in a magnetostrictive ultrasonic dental scaler includes generating a drive signal for a resonant circuit using a full bridge synchronous class D amplifier. The electrical signal output by the resonant circuit drives an excitation coil that generates an electromagnetic field that causes the magnetostrictive ultrasonic transducer to vibrate. A feedback wire is rendered unnecessary by measuring current and voltage outputs of the resonant circuit and quadrature sampling the measured current and voltage outputs at the same sampling rate as used for the generation of the electrical signal by the resonant circuit. A pulse width modulated signal is generated from the quadrature sampled sensed current and voltage that represents a pulse train approximation of a sine wave of the drive signal for, in turn, being applied to the full bridge synchronous class D amplifier to generate the drive signal for the resonant circuit. Changes in the pulse widths of the pulse train change the amplitude of the drive signal.

IPC Classes  ?

• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
• A61C 17/20 - Power-driven cleaning or polishing devices using ultrasonics
• B06B 1/08 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with magnetostriction

Abstract

Disclosed herein are a tissue management impression material and a method of application into the sulcus of a patient, whereby the tissue management impression material is a part of the final dental impression made when manufacturing a dental device, such as a crown.

IPC Classes  ?

• A61C 9/00 - Impression methods specially adapted for dental prostheticsImpression cups therefor
• A61C 13/15 - Curing devices for plastics prostheses for curing by the action of light

Abstract

(iv) a thermal polymerisation inhibitor of the following formula (I): c represents an integer of from 1 to 4.

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C08L 43/02 - Homopolymers or copolymers of monomers containing phosphorus
• A61K 6/00 - Preparations for dentistry

Abstract

A dental handpiece and a dental cleaning procedure are disclosed. The dental handpiece includes an inner barrel for rotatably retaining an ultrasonic insert, the inner barrel configured for contacting the ultrasonic insert with a cooling fluid in the inner barrel, a coil unit arranged and disposed to apply an alternating magnetic field to the ultrasonic insert when positioned in the inner barrel, an outer sheath extending around at least a portion of the coil unit. The dental handpiece includes flow regions permitting steam, chemicals, and heat to flow into the inner barrel and out of the inner barrel during a sterilization technique. The dental cleaning procedure includes operating the dental handpiece and autoclaving the dental handpiece.

IPC Classes  ?

• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
• A61C 17/20 - Power-driven cleaning or polishing devices using ultrasonics
• A61C 1/18 - Flexible shaftsClutches or the like

Abstract

Disclosed is an endodontic treatment of an infected root canal with a drug delivery system in order to prevent the need for a root canal treatment of a patient.

IPC Classes  ?

• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
• A61K 6/00 - Preparations for dentistry

Abstract

An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises—S.sub.xH groups, wherein x is an integer of from 1 to 6, which crosslink the particulate glass and/or the linear polycarboxylic acid and/or the optional dispersed nanoparticles and/or the optional low molecular compound.

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C08L 33/02 - Homopolymers or copolymers of acidsMetal or ammonium salts thereof

Abstract

A dental device and system comprising a dental wedge with a light emitting diode circuit containing a secondary winding inductively coupled to a power supply circuit containing primary winding. The power supply circuit wirelessly provides power to the light emitting diode circuit and light emitting diode is activated as voltage is applied across it with the light energy output being in a range preferable for curing dental composite materials used to restore a damaged tooth to its undamaged state.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders
• A61C 13/15 - Curing devices for plastics prostheses for curing by the action of light

Abstract

AB, wherein the filling of the molds and the molding of the melt in the molds takes place with a cooling rate A.

IPC Classes  ?

• C03C 10/00 - Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
• A61C 13/00 - Dental prosthesesMaking same
• C03B 19/02 - Other methods of shaping glass by casting
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth
• A61K 6/027 - Use of non-metallic elements or compounds thereof, e.g. carbon
• C03C 3/097 - Glass compositions containing silica with 40% to 90% silica by weight containing phosphorus, niobium or tantalum
• C03C 4/00 - Compositions for glass with special properties
• C03B 32/02 - Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles

Abstract

The present invention provides a tweezer for dental and other applications. The tweezer including a main body portion (12, 14) extending in a generally longitudinal direction. The main body portion having a first end (20) and a second end (18). A hinge connector (16) is located between the first end and the second end. A first pair of pincers is located at the first end (20). A second pair of pincers is located at the second end (18). A bias mechanism (22) urges the first pair of pincers (20) into a closed position and urging the second pair of pincers (18) in an open position, whereby the user may apply a force to the tweezers to overcome the bias mechanism (22) and urge the first pair of pincers (20) away from the closed position and the second pair of pincers (18) away from the open position.

IPC Classes  ?

• A61C 3/10 - Tooth pincettes or the like

Abstract

1-6 alkylene group; and n is an integer of at least 1; provided that at least one X cannot be a (meth)acryl group; and (iii) an initiator system.

IPC Classes  ?

• A61K 6/08 - Use of natural or synthetic resins
• A61K 6/00 - Preparations for dentistry

Abstract

An endodontic instrument for cleaning and/or shaping a tooth root canal that includes an elongated shaft composed of a porous material, the shaft having a proximal end portion, a distal end and a tapered working portion having an external surface and a rotational axis, the working portion extending from the proximal end portion to the distal end.

IPC Classes  ?

• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots

Abstract

A luminescent coating is disclosed that is used to dimensionally control the curing of a photocurable agent placed in close contact with the coating. The coating is applied at the interface of structures, such as brackets and prosthetics, or may be applied directly on a curable material for use in 3D printing, at the location where bonding material is needed to be cured. The luminescent coating irradiates from its structure the curing radiations necessary to photopolymerize the resin in response to a first radiation irradiated on its structure of a different wavelength. The luminescent, in particular up-converting or phosphorescent, coating may also be used to detect an inhomogeneity of a transilluminated object such as a tooth.

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61K 6/00 - Preparations for dentistry
• A61C 13/00 - Dental prosthesesMaking same
• B29C 67/00 - Shaping techniques not covered by groups , or
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• A61C 5/08 - Tooth crowns; Making same; Securing crowns in the mouth
• A61C 7/14 - BracketsFixing brackets to teeth
• A61C 7/16 - BracketsFixing brackets to teeth specially adapted to be cemented to teeth
• A61C 13/15 - Curing devices for plastics prostheses for curing by the action of light
• A61C 13/225 - Fastening prostheses in the mouth
• A61B 5/00 - Measuring for diagnostic purposes Identification of persons
• C09D 5/22 - Luminous paints
• G01N 21/64 - FluorescencePhosphorescence
• A61K 6/06 - Use of inorganic cements
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth

Abstract

A method for manufacturing at least one nonlinear file including the steps of deforming at least a portion of a linear file away from a file axis and heat-treating the deformed file to shape-set the nonlinear file.

IPC Classes  ?

• B23P 15/44 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools scraping or shaving tools
• B21K 5/12 - Making tools or tool parts, e.g. pliers other cutting tools
• A61C 5/42 - Files for root canalsHandgrips or guiding means therefor
• B21D 37/16 - Heating or cooling

Abstract

A multi-directional handpiece that includes a motor drive extending along and configured for rotation about a body axis, the motor drive having: a motor gearing at a proximal end of the motor drive; and a file gearing in engagement with the motor gearing for transferring the rotational and axial movement to a workpiece; and a housing for the workpiece; and wherein through rotation of the motor drive, the workpiece moves in an axial oscillating motion while being rotated.

IPC Classes  ?

• A61C 1/14 - Tool-holders
• A61C 1/02 - Dental machines for boring or cutting characterised by the drive of the dental tools
• A61C 1/12 - Angle hand-pieces
• A61C 1/18 - Flexible shaftsClutches or the like
• A61C 1/00 - Dental machines for boring or cutting
• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
• A61C 5/40 - Implements for surgical treatment of the roots or nerves of the teethNerve needlesMethods or instruments for medication of the roots
• A61C 5/42 - Files for root canalsHandgrips or guiding means therefor

Abstract

A multi-directional handpiece that includes a motor drive extending along and configured for rotation about a body axis, the motor drive having: a motor gearing at a proximal end of the motor drive; and a file gearing in engagement with the motor gearing for transferring the rotational and axial movement to a workpiece; and a housing for the workpiece; and wherein through rotation of the motor drive, the workpiece moves in an axial oscillating motion while being rotated.

IPC Classes  ?

• A61C 1/14 - Tool-holders
• A61C 1/02 - Dental machines for boring or cutting characterised by the drive of the dental tools
• A61C 1/18 - Flexible shaftsClutches or the like
• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
• A61C 1/00 - Dental machines for boring or cutting
• A61C 1/12 - Angle hand-pieces
• A61C 1/07 - Dental machines for boring or cutting characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic

Abstract

A dental wedge for inserting into the interproximal space between adjacent teeth comprises a first and second sidewall comprised of a shape memory material, including a nickel-titanium alloy, wherein the dental wedge is in a first, resting state when outside of the interproximal space and transforms to a second, operational state when the dental wedge is interested into the interproximal space between adjacent teeth and exposed to a first transformation stimulus, namely exposure to the higher temperature in the interproximal space. The expansion force generated by the dental wedge when in the second, operational stage is sufficient to secure a dental matrix against the tooth being restored and to separate the tooth being restored and adjacent tooth to expand the interproximal space.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

A dental matrix according to the present invention comprises (a) a metal matrix band comprising an internal surface and an external surface; and (b) an organic light emitting diode (OLED) layer disposed on at least a first portion of the internal surface of the metal matrix band, the OLED layer comprising a first electroluminescent polymer disposed between a first and a second electrode layer. Applying an electrical current across the OLED generates light energy suitable for curing dental restoration material with the light energy being applied from the interproximal space.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

Disclosed herein are methods of making polymerizable resins containing a 1,3,5-hexahydro-1,3,5-triazine moiety and dental compositions comprising such novel hydrolytic stable, polymerizable resins derived from 1,3,5-triacryloyl-hexahydro-1,3,5-triazine (TAT).

IPC Classes  ?

• C07D 211/06 - Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members

Abstract

A method for controlling a dental instrument includes a foot pedal responsive to commands from a user. An operating mode is selectable between normal and boost cycle. A conventional mode is selectable by pressing and holding the foot pedal to a first level to operate in normal mode. The foot pedal operates in a boost mode when the pedal advances to a second level. Maintained mode is selectable by tapping the foot pedal to change modes between idle, normal and boost mode. Each mode is switched by tapping the foot pedal. The pedal switches between the second process and the first process by pressing and holding the foot pedal at the desired level corresponding to normal or boost mode. The pedal switches from the first process to the second process by tapping the foot pedal at the level corresponding to normal or boost.

IPC Classes  ?

• A61C 1/02 - Dental machines for boring or cutting characterised by the drive of the dental tools
• A61C 1/00 - Dental machines for boring or cutting
• A61C 17/20 - Power-driven cleaning or polishing devices using ultrasonics

Abstract

Disclosed herein is a basic dental composition comprising an adhesive composition, wherein the dental composition is suitable for use in dentistry.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A dental composite composition is disclosed that includes a polymerizable resin, filler particles, and at least one polymerizable stable radical. A variety of polymerizable stable radicals may be employed, including those that have a 2,2,6,6-tetramethylpiperidinyl-1-oxyl moiety. Compositions as described herein exhibit excellent mechanical strength, hardness, and flexural modulus, while also significantly decreasing shrinkage stress caused by polymerization.

IPC Classes  ?

• C07D 295/24 - Oxygen atoms
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A dental insert (10) has a nozzle (30) supporting a grip sleeve (80). Nozzle 30 may include several components (31, 32, 33) that are assembled without the need for a weld. A grip retaining ring 60 is positioned at a nodal location.

IPC Classes  ?

• A61C 3/03 - Instruments operated by vibration

Abstract

The present invention provides a composition including at least one polymerizabie liquid component having at least one rubber impact modifier; at least one polymerization initiator, and at least one polymer component.

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A method for manufacturing at least one nonlinear file Including the steps of deforming at least a portion of a linear file away from a file axis and heat-treating the deformed file to shape-set the nonlinear file.

IPC Classes  ?

• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots

Abstract

A universal cervical matrix for dental use comprising a lamina having at least an outer layer and an inner layer, the inner layer comprising a non-stick surface to prevent adhering to a chemically-cured dental restoration material, and the outer layer comprising an energy-absorbing material. The energy-absorbing material absorbs energy output from a dental curing light and provides heat to the dental restoration material, thereby increasing curing rate.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

Disclosed herein is a flexible and adaptable light-emitting system useful for a variety of dental uses. This flexible and/or adaptable curing light system enables the curing of any light-activated materials in a manner of immediate contact

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders
• A61C 7/14 - BracketsFixing brackets to teeth
• A61C 13/15 - Curing devices for plastics prostheses for curing by the action of light
• A61C 19/06 - Implements for therapeutic treatment
• H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

Abstract

A rotatable endodontic file for cleaning/shaping a tooth root canal, comprising: an elongated shaft having a proximal end portion, a distal end and a tapered working portion having a rotational axis, the working portion extending from said proximal portion to said distal end; the external surface of said shaft working portion having a plurality of at least two spirals, a parallelogram-shaped cross section that has an axis of rotation that is centered such that the cross section center of mass (centroid) is located at the axis of rotation where the acute angle of the parallelogram is different along the length of the file.

IPC Classes  ?

• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots

Abstract

A dental wedge (40), for use in the inter-proximal space between adjacent teeth, includes a head portion (42), a body portion (46), wherein, said body portion (46) includes a backbone (52), wherein said backbone (52), viewed from the side, has a curved profile, said body portion (46) includes at least three pairs of wings (60, 62, 64) extending from the backbone (52), wherein said wings (60, 62, 64) are separated by a plurality of notches (76) such that the wings (60, 62, 64) extend independently, and said body portion (46) has three sections, wherein a proximal wing section (60) includes a pair of wings closest to the head portion (42), a distal wing section (64) includes a pair of wings furthest from the head portion (42), and a central wing section (62) has at least one pair of wings; and a neck portion (44), wherein said neck portion (44) connects the head and body portions (42,46).

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

A dental wedge, for use in the inter-proximal space between adjacent teeth, includes a head portion, a body portion, wherein, the body portion includes a backbone, wherein the backbone, viewed from the side, has a curved profile, the body portion includes at least three pairs of wings extending from the backbone, wherein the wings are separated by a plurality of notches such that the wings extend independently, and the body portion has three sections, wherein a proximal wing section includes a pair of wings closest to the head portion, a distal wing section includes a pair of wings furthest from the head portion, and a central wing section has at least one pair of wings, and a neck portion, wherein the neck portion connects the head and body portions.

IPC Classes  ?

• A61C 7/00 - Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
• A61C 5/12 - Tooth clamps; Dam holders
• A61C 5/88 - Wedges

Abstract

The present invention is directed to a dental composition, and specifically to an improved composition for endodontic instruments useful for filling root canals or sealing.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry

Abstract

The invention relates to a blank for producing a dental moulded part such as an inlay, onlay, crown or bridge, and to a method for producing the blank. To be able to machine a dental moulded part, in particular one having thin wall thicknesses, from the blank without difficulty, the blank is designed to consist of a glass ceramic having a density of between 30 and 60% of theoretical density, and of glass-ceramic powder particles with a particle size distribution d90 ≤ 80 μm, lithium silicate crystals being present in an amount of 10 to 90% by volume.

IPC Classes  ?

• A61K 6/027 - Use of non-metallic elements or compounds thereof, e.g. carbon
• C03C 4/00 - Compositions for glass with special properties
• C03C 10/00 - Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
• C03B 32/02 - Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
• A61C 13/00 - Dental prosthesesMaking same

Abstract

A tip assembly for use with a dental tool, the tip assembly comprising a housing for attaching to the dental tool, at least one aspiration needle having a passageway extending at least partially through the aspiration needle, a substantial length of the aspiration needle, or at least from one end to the other end of the aspiration needle, the passageway providing a single continuous path to aspirate the irrigant and/or debris from the root canal cavity of the tooth, and at least one irrigation needle having a passageway extending at least partially through the irrigation needle, a substantial length of the irrigation needle, or at least from one end to the other end of the irrigation needle, the passageway provides a continuous flow path for delivering fluid/irrigant from a reservoir in communication with a proximal end of the irrigation needle to the distal end of the irrigation needle and into a root canal/coronal opening of a tooth.

IPC Classes  ?

• A61M 5/32 - NeedlesDetails of needles pertaining to their connection with syringe or hubAccessories for bringing the needle into, or holding the needle on, the bodyDevices for protection of needles
• A61C 17/02 - Rinsing or air-blowing devices, e.g. using fluid jets
• A61C 3/03 - Instruments operated by vibration
• A61C 5/42 - Files for root canalsHandgrips or guiding means therefor
• A61C 17/06 - Saliva removersAccessories therefor

Abstract

A denial matrix band retainer is provided with a retractor, main body portion and a bias mechanism. The retractor includes a proximal end and a distal end, with a band engagement portion at the proximal end. The main body portion having a proximal end and a distal end, with a head portion located at the proximal end. The bias mechanism coupling the retractor to the main body portion, the bias mechanism having a static position and a fully active position, wherein in the static position the head portion is spaced apart from the band engagement portion a first distance, and in the fully active position the head portion is spaced apart from the band engagement portion a second distance which is greater than the first distance, the bias mechanism including an actuator for urging the bias mechanism towards the fully active position.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

An integrated dental component, carrier and affixation tool provides a clinician with a large object to hold the dental component, and allows for single-handed orientation, placement and fastening with the integration of an affixation tool.

IPC Classes  ?

• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools

Abstract

Described herein is a dental filler material having a core made of a core material and a shell made of a shell material, where the shell material coats or covers at least a portion of the core.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth

Abstract

Described herein is a dental filler material having a core made of a core material and a shell made of a shell material, where the shell material coats or covers at least a portion of the core.

IPC Classes  ?

• A61K 6/08 - Use of natural or synthetic resins
• A61K 6/00 - Preparations for dentistry
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

Disclosed herein are substantially transparent and colorless dental varnishes having improved fluoride release, transparency and color once coated.

IPC Classes  ?

• A61K 6/08 - Use of natural or synthetic resins
• A61C 5/00 - Filling or capping teeth
• A61K 8/97 - Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from algae, fungi, lichens or plantsCosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof, of undetermined constitution from derivatives thereof
• A61K 6/00 - Preparations for dentistry
• A61Q 11/00 - Preparations for care of the teeth, of the oral cavity or of dentures, e.g. dentifrices or toothpastesMouth rinses

Abstract

A filling device includes a first component and a second component. The first component includes a dosing cylinder having a high-viscosity material arranged therein. The second component includes a workpiece carrier and a receiving carrier. The receiving carrier is moveably connected to the workpiece carrier. The movement v of the receiving carrier during the filling process is determined by both the dynamic pressure exerted by the material and by a counterforce G generated by a unit having a pressurized fluid.

IPC Classes  ?

• B65B 3/14 - Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material pneumatically
• B65B 3/00 - Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans or jars
• B65B 3/12 - Methods of, or means for, filling the material into the containers or receptacles by application of pressure to material mechanically, e.g. by pistons or pumps
• B65B 3/32 - Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement by pistons co-operating with measuring chambers
• B65B 43/59 - Means for supporting containers or receptacles during the filling operation vertically movable

Abstract

Disclosed herein are methods of treating an intraoral surface by applying a solution comprising a proteinaceous material and an aldehyde.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry

Abstract

Disclosed herein are substantially transparent and colorless dental varnishes having improved fluoride release, transparency and color once coated.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry

Abstract

Needle passing' device' with at least 2 jaws using the needle shape activate the mechanism of needle passing from one jaw to another.

IPC Classes  ?

• A61B 17/04 - Surgical instruments, devices or methods for closing wounds or holding wounds closedAccessories for use therewith for suturing woundsHolders or packages for needles or suture materials
• A61B 17/062 - Needle manipulators

Abstract

The present invention employs a self-ligating orthodontic bracket comprising a body having a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings, the gingival and occlusal tie wings projecting from a labial surface of the body; an arch wire slot extending mesially-distally across the body and between the gingival and occlusal tie wings to accommodate an arch wire; a free-sliding, controlled-locking, or pivoting clip wherein the clip allows placement and removal of the arch wire when in the open position and prevents the displacement of the arch wire from the bracket member when in the closed position.

IPC Classes  ?

• A61C 7/28 - Securing arch wire to bracket
• A61C 7/30 - Securing arch wire to bracket by resilient means
• A61C 7/14 - BracketsFixing brackets to teeth
• A61C 7/20 - Arch wires
• A61C 7/12 - BracketsArch wiresCombinations thereofAccessories therefor

Abstract

A tip assembly for use with a dental tool, the tip assembly comprising a housing for attaching to the dental tool, at least one aspiration needle having a passageway extending at least partially through the aspiration needle, a substantial length of the aspiration needle, or at least from one end to the other end of the aspiration needle, the passageway providing a single continuous path to aspirate the irrigant and/or debris from the root canal cavity of the tooth, and at least one irrigation needle having a passageway extending at least partially through the irrigation needle, a substantial length of the irrigation needle, or at least from one end to the other end of the irrigation needle, the passageway provides a continuous flow path for delivering fluid/irrigant from a reservoir in communication with a proximal end of the irrigation needle to the distal end of the irrigation needle and into a root canal/coronal opening of a tooth..

IPC Classes  ?

• A61C 17/02 - Rinsing or air-blowing devices, e.g. using fluid jets
• A61C 3/03 - Instruments operated by vibration
• A61C 5/02 - Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
• A61C 17/06 - Saliva removersAccessories therefor

Abstract

Disclosed herein are polymerizable dental materials and dental products based upon such materials. More particularly, disclosed are materials and products based upon BPA-free, polymerizable resins that are derived from l,4:3,6-dianhydro-glucidol (isosorbide).

IPC Classes  ?

• C07D 493/04 - Ortho-condensed systems
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

An apparatus (12) usable with an injection molder (10) for producing articles, in particular orthodontic brackets, includes a first mold support (18, 20) including a first mold, and a second mold support (18, 20) including a second mold and a first die. The first mold support is movable relative to the second mold support between a first position and a second position. In the first position, the first mold and the second mold being brought together to form an injection molded article (14) include a body having at least one protrusion extending outwardly from the body and facing the second mold. In the second position, the first mold and the first die being brought together to subsequently form the article, the first die selectively subsequently forming an altered cross sectional region (64) in at least a portion of the protrusion, forming an undercut (70) in the altered cross sectional region (64) or between the altered cross sectional region (64) of the subsequently formed protrusion and the body.

IPC Classes  ?

• A61C 7/16 - BracketsFixing brackets to teeth specially adapted to be cemented to teeth
• B29C 45/04 - Injection moulding apparatus using movable moulds

Abstract

Disclosed herein are polymerizable dental materials and dental products based upon such materials. More particularly, disclosed are materials and products based upon BPA-free, polymerizable resins that are derived from 1,4:3,6-dianhydro-glucidol (isosorbide).

IPC Classes  ?

• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• C07D 493/04 - Ortho-condensed systems

Abstract

Disclosed herein is a two part retraction system that can be inserted into the sulcus to form a semi-rigid porous elastomer releasing a hemostatic agent suitable for sulcus retraction such that a dental impression may be completed by a dental practitioner.

IPC Classes  ?

• A61K 6/00 - Preparations for dentistry
• A61K 6/093 - Polyorganosilicon compounds

Abstract

A heating apparatus for heating and sterilizing or disinfecting a material used in dental treatment, the heating apparatus comprising a heating compartment with a heating element for heating all or part of the material within the heating compartment; at least one holder for receiving and holding at least a part of the material used in dental treatment inside the heating compartment; and an disinfection device having a light source for sterilizing all or part of the material within the heating compartment.

IPC Classes  ?

• A61L 2/04 - Heat
• A61C 19/00 - Dental auxiliary appliances
• A61L 2/10 - Ultraviolet radiation
• A61C 5/04 - Implements for filling natural teeth; Methods or instruments for medication of tooth nerve channels
• A61L 2/26 - Accessories

Abstract

Disclosed herein is a two part retraction system that can be inserted into the sulcus to form a semi-rigid porous elastomer releasing a hemostatic agent suitable for sulcus retraction such that a dental impression may be completed by a dental practitioner.

IPC Classes  ?

• A61K 6/10 - Compositions for taking dental impressions
• A61C 9/00 - Impression methods specially adapted for dental prostheticsImpression cups therefor
• A61K 6/00 - Preparations for dentistry

Abstract

A teaching device 10 includes a radiopaque skull 30 and radiopaque teeth 24, covered with plastic foam and silicone skin 31 to simulate a human head having correct external anatomical form. Pliable lips 20, 21 and other anatomical features realistically reproduce the challenges of taking dental x-rays images.

IPC Classes  ?

• G09B 23/28 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for medicine

Abstract

This invention relates to printable polymerizable material systems for making dental products such as artificial teeth, dentures, splints, veneers, inlays, onlays, copings, frame patterns, crowns and bridges and the like. A DLP or stereolithography printer is used to cure polymerizable material in a layer-by-layer manner to build-up the object. The resulting three-dimensional object has good dimensional stability.

IPC Classes  ?

• A61C 13/00 - Dental prosthesesMaking same
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, (ii) surfactant, the surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, and sarcosinates, and mixtures thereof; and (iii) water; wherein the particulate and liquid carrier being mixed together to form a hydrate gel material that can harden.

IPC Classes  ?

• A61K 6/06 - Use of inorganic cements
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61K 6/033 - Phosphorus compounds, e.g. apatite
• A61K 6/00 - Preparations for dentistry

Abstract

The present invention employs a self-ligating orthodontic bracket comprising a body having a pair of laterally spaced gingival tie wings and a pair of laterally spaced occlusal tie wings, the gingival and occlusal tie wings projecting from a labial surface of the body: an arch wire slot extending mesially-distally across the body and between the gingival and occlusal tie wings to accommodate an arch wire: a free-sliding, controlled-locking, or pivoting clip wherein the clip allows placement and removal of the arch wire when in the open position and prevents the displacement of the arch wire from the bracket member when in the closed position.

IPC Classes  ?

• A61C 7/14 - BracketsFixing brackets to teeth
• A61C 7/28 - Securing arch wire to bracket
• A61C 7/12 - BracketsArch wiresCombinations thereofAccessories therefor

Abstract

The present invention pertains to a device for retaining a matrix band about at least a portion of a periphery of a tooth to be treated, the device comprising: a first lug to fit on one side of a proximal contact between two teeth; a second lug to fit on the other side of said proximal contact, and a resilient body member connecting between the first lug and said second lug. The body member applies a restorative or clamping force biasing the lugs together against opposed sides of the proximal contact and holds the lugs such that they must be separated to fit over the proximal contact. The first and second lugs are pivotally coupled to the resilient body member to allow the resilient body member to rotate relative to the lugs while providing the clamping force biasing the lugs together.

IPC Classes  ?

• A61C 5/12 - Tooth clamps; Dam holders

Abstract

The present invention provides a tweezer for dental and other applications. The tweezer including a main body portion (12, 14) extending in a generally longitudinal direction. The main body portion having a first end (20) and a second end (18). A hinge connector (16) is located between the first end and the second end. A first pair of pincers is located at the first end (20). A second pair of pincers is located at the second end (18). A bias mechanism (22) urges the first pair of pincers (20) into a closed position and urging the second pair of pincers (18) in an open position, whereby the user may apply a force to the tweezers to overcome the bias mechanism (22) and urge the first pair of pincers (20) away from the closed position and the second pair of pincers (18) away from the open position.

IPC Classes  ?

• A61C 3/10 - Tooth pincettes or the like
• A61B 17/30 - Surgical pincettes, i.e. surgical tweezers

Abstract

A positioning device for holding a dental x-ray imaging media during the taking of a dental x-ray includes an aiming ring, a bite block and a positioning arm extending therebetween. The bite block carries a journal or barrel for receiving a portion of the positioning arm therein such that the portion of the positioning arm thus received can rotate or move therein, such that the position between the bite block and the aiming ring can be selected in one of a plurality of positions corresponding to a position for taking one of a plurality of dental x-ray images. In another embodiment, the bite block carries a window through which a color-coded or other indicia portion of the positioning arm is positioned such that the user can view the indicia to determine the x-ray image for which the device is set.

IPC Classes  ?

• A61B 6/14 - Applications or adaptations for dentistry
• A61B 6/00 - Apparatus or devices for radiation diagnosisApparatus or devices for radiation diagnosis combined with radiation therapy equipment
• G03B 42/02 - Obtaining records using waves other than optical wavesVisualisation of such records by using optical means using X-rays
• G03B 42/04 - Holders for X-ray films

Abstract

In a dental operatory system a master device coordinates the activity levels of multiple slave devices. The master device coordinates activity via a communication link with all slave devices. A communication protocol incorporates a closed system addresses scheme in which the master device learns all associated addresses of slave devices, and all slave devices learn all associated addresses of the master device. Each communication between master device and any slave device includes both the master device address and the slave device address. The master device scans all slave devices for an activity status and determines which slave device exhibits a threshold level of activity, and whether activity is increasing or decreasing. The master device passes a communication control token to the slave device to be controlled by operation of the master device.

IPC Classes  ?

• G08C 19/00 - Electric signal transmission systems
• A61C 1/00 - Dental machines for boring or cutting
• G05G 1/46 - Means, e.g. links, for connecting the pedal to the controlled unit
• A61B 17/00 - Surgical instruments, devices or methods

Abstract

The present invention provides a dual arch anterior dental impression tray including a generally opened C-shaped mouthpiece (10) and an insert (12). The mouthpiece (10) having a front side (16), a back side (18), an upper rim (38), a lower rim (42), a left end and a right end, the back side (18) having a concave surface (26) extending from the left end to the right end, the concave surface (26) including a generally longitudinally extending curved groove (28), the left end and right end each include a connector. The insert (12) including a front portion (48) having a curved frame (52), the curved frame (52) includes a left end and a right end, the curved frame (52) is adapted to fit snugly into the curved groove (28), the insert (12) includes a mesh material extending from and within an area defined by the curved frame (52), the curved frame left end and right end each include a connector, wherein the insert left connector is adapted to connect with the mouthpiece left connector and the insert right connector is adapted to connect with the mouthpiece right connector.

IPC Classes  ?

• A61C 9/00 - Impression methods specially adapted for dental prostheticsImpression cups therefor

Abstract

1-6 alkylene group; and n is an integer of at least 2; (ii) an initiator system; optionally a polyacidic polymer; optionally water and/or a water soluble solvent; and optionally a particulate filler.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• A61K 6/083 - Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• A61K 6/00 - Preparations for dentistry
• A61K 6/02 - Use of preparations for artificial teeth, for filling or for capping teeth
• C07C 233/31 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by doubly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
• C08F 290/06 - Polymers provided for in subclass
• C07C 233/20 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton