Abstract: A method, system and computer readable storage media for visualizing to a patient a magnified dental treatment site. By obtaining raw data from a stereo camera recording a dental treatment site, an enlarged, well-lit and spatially displayed view of the dental treatment site may be visualized in real time in augmented reality and virtual reality systems for diagnoses and treatment planning.

Abstract: The invention relates to a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that in the form body comprising lithium silicate glass or containing lithium silicate glass the lithium ions are replaced by alkali ions of greater diameter to generate a surface compressive stress. To this end the form body is covered with a melt containing an alkali metal for which an aliquoted quantity of salt containing the alkali metal is used.

Abstract: A method of determining the orientation of a 3D Model to be generated by an additive manufacturing apparatus having a vat for holding photocurable material; and a platform for holding the 3D object corresponding to the 3D model. The platform is relatively movable with respect to the vat and the method includes a step of defining the surface geometry of the 3D model and the surface geometry includes surface segments si.

Abstract: The present invention relates to a dental composition comprising (i) an acidic polymerizable compound of the following formula (Ia), (Ib) or (Ic): wherein X, Y, Y?, Z, L, R2, R3 and R4 are as defined in claim 1; and (ii) an initiator system. Furthermore, the present invention relates to the use of the polymerizable compound of formula (I) for the preparation of a dental composition.

Abstract: Dental hand piece, comprising a housing and a drive train with a coupling element for a drive, wherein the housing radially surrounds the drive train and wherein the housing has a first and a second housing end, and wherein the housing is held on the drive train on the first and on the second housing end. Between the first housing end and the coupling element is arranged a decoupling element, which is strictly springy or springy and damping in the axial direction, whereas the second housing end is braced rigidly against the drive train and the housing is braced with respect to the coupling element in the axial direction by means of the decoupling element.

Abstract: The present invention relates to a method of operating a stepper motor for use in a dental tool machine (1) for removing material from a dental blank (2), the method comprising: a step of adapting torque reserves of the stepper motor at operating points to net load moments (M_net) respectively, characterized by further comprising: a first step (S1) of predicting, through simulation, the net load moments (M_net) beforehand; a second step (S2) of predicting, through simulation, the supply current (I_tr) to be supplied to the stepper motor for setting up the torque reserves that correspond to the predicted net load moments (M_net) respectively; and a step (S3) of driving the stepper motor based on the predicted supply current (I_tr).

Abstract: The present invention relates to a fixture for insertion into a bore hole arranged in bone tissue, comprising a threaded leading portion and a threaded trailing portion located coronally of the leading portion, wherein the threading of the leading portion has at least one first thread spiral, wherein the threading of the trailing portion has at least one more thread spiral than the threading in the leading portion, wherein the threading of the trailing portion and the threading of the leading portion have the same or substantially the same lead, wherein the profile of at least one of the thread spirals in the trailing portion is, at least along a portion of its length, substantially the same as the profile of the outermost parts of said first thread spiral in the leading portion, and wherein the at least one thread spiral in the trailing portion having substantially the same profile as the outermost part of said first thread spiral in the leading portion is arranged to follow the spiral path of that thread sp

Abstract: The invention relates to a method to produce a dental structure with a cavity having a negative form of the structure, which is formed in an investment material, wherein flowable lithium silicate glass ceramic is pressed into the cavity. Thereby a compressive surface stress is created in the ceramic structure through the replacement of lithium ions by alkali ions, in that the model is enriched with alkali compounds and/or the model is covered with a layer of a material containing alkali ions.

Abstract: The invention is related to a shaded porcelain system that contains two types of veneering porcelains: natural enamel/dentin body and opal enamel, as well as stain & glaze porcelain, with CTE that are compatible to and which can be used for veneering a dental prosthesis made of 1) lithium disilicate-based glass-ceramic substructure that is formed by hot pressing or CAD/CAM machined process or 2) YTZP zirconia-based ceramic substructure that is formed by CAD/CAM machined process in order to improve overall esthetics of final prosthesis.

Abstract: A method, system and computer readable storage media for visualizing to a patient a magnified dental treatment site. By obtaining raw data from a stereo camera recording a dental treatment site, an enlarged, well-lit and spatially displayed view of the dental treatment site may be visualized in real time in augmented reality and virtual reality systems for diagnoses and treatment planning.

Abstract: A system for scanning anatomical structures and for visualizing the scanning result, wherein the system includes an intraoral scanner, which intraorally captures an image of the anatomical structures, an extraoral detection unit, which detects a spatial position of the intraoral scanner relative to an observer or a person conducting the scan, and a computing unit, which, during the scanning procedure, connects the scanner with a screen and the detection unit and generates a scanning result based on the intraorally captured image of the anatomical structures and the detected spatial position of the intraoral scanner relative to the observer, and which, during pauses in the scanning procedure, estimates the position, orientation and scaling of the anatomical structures and, as a scanning result, generates an image of the anatomical structures corresponding to the estimation, and wherein the screen displays the scanning result generated by the computing unit.

Abstract: A fixture for insertion into a bore hole arranged in bone tissue is provided. The fixture has a threaded leading portion provided with at least one cutting edge for creating a female thread in the bone tissue, and a threaded trailing portion following the leading portion in the created female thread. Compared to the geometry of a thread peak of said cutting edge of the leading portion, a thread peak of the trailing portion is displaced or overdimensioned in at least one of the coronal and apical directions of the fixture so that a strain is provided to the bone when said displaced or overdimensioned thread peak engages with the created female thread. A fixture set for creating a strain is also provided, the set includes a fixture and a separate thread maker.

Abstract: The present invention relates to an endodontic file clip (1) for an apex locator, comprising: a hollow body (2); a push button (3) movably linked to the body (2); a spring (4) pushing the push button (3) away from the body (2); an electrically conductive hook (5) movably arranged within the body (2) and partly protruding out of the tip (2a) of the body (2) and fixed to the push button (3) to securely attach an endodontic file (6) to the tip (2a) when the push button (3) is released towards the closed position, and disengage from the endodontic file (6) when the push button (3) is pressed towards the open position; characterized by further comprising: a detachment mechanism (7) for re-attachably detaching the push button (3), the spring (4) and the hook (5) from the body (2) for cleaning and disinfection in a dental washer disinfector, wherein the detachment mechanism (7) comprises a detachment slot (2c;2c?) in the body (2) which extends up to the tip (2a) and joins said hole, to allow manual detachment of the

Abstract: The present invention provides a treatment apparatus (1) for treating peri-implantitis. Treatment apparatus (1) is characterized by comprising: An application tip (2) that is adapted for insertion into the sub-gingival region between the screw fixture of a dental implant and the surrounding gingiva and/or bone, wherein the length of the application tip (2) is at least equal to the depth of the peri-implant pocket to be treated, and wherein the application tip (2) comprises one or more nozzles (3) for jetting pressurized sterile fluid (4) for removing the bacterial biofilms from the outer surface of the screw fixture of the dental implant in vivo; a handpiece (5) for holding and guiding the application tip (2); and a supply unit (6) for supplying pressurized sterile fluid (4) to the application tip (2).

Abstract: The present invention relates to an intra-oral bite device for use with an x-ray recording apparatus for recording the image of at least one oral area of a patient, located by the intra-oral bite device.

Abstract: A dental x-ray sensor holder 1 and sheath 4 for affixing a sensor to a backing plate 2 of the holder 1. The dental x-ray sensor holder 1 and sheath 4 generally includes a sensor holder 1 with a backing plate 2, having one or more spring arms 3, and affixed to or formed contiguously with a proximal end of a bite block 9 of the holder 1. It also includes a sensor sheath adapted to secure a sensor to the backing plate for X-ray acquisition.

Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.

Abstract: The present invention relates to an illuminating instrument (1) for diagnostics, therapy or surgery of a body part, comprising: at least one optical fiber (4) for transmitting electromagnetic radiation directly from an electromagnetic radiation source (3) to the body part; and a housing (5) which supports the optical fiber (4); the optical axis of the light-output end of the optical fiber (4) circumferentially extends in an illumination portion (52a) in the housing (5) which is annular shaped and arranged to face the body part; the optical fiber (4) in the illumination portion (52a) has one or more diffusing regions (4a) for difusing the electromagnetic radiation to the outside of the optical fiber (4) through the circumferential surface (4b) thereof, a coupling device (2) which supports the electromagnetic radiation source (3) for generating the electromagnetic radiation, characterized by further comprising: a conversion means (6) which is supported by the housing (5) without directly contacting the electrom