A dental light having an array of light emitting diode (LED) assemblies, at least one first LED assembly having at least one first LED element configured to emit light according to a first spectral distribution, a conversion phosphor configured to convert at least a portion of the first spectral distribution. At least one filter is fixed within said converted light, the filter configured to block at least a portion thereof. The array includes at least one second LED element configured to emit light according to a second spectral distribution, wherein light having the filtered spectral distribution is selectively emitted from said array in a first mode and from both the filtered and second spectral distributions in a second mode.

An object is to provide a polymerization apparatus for dental technique with which both of preliminary polymerization and final polymerization can be carried out by one apparatus. The apparatus includes a plurality of light sources whose light axes run at least in two directions; a cover that covers the light sources, forms a polymerization space inside thereof and switches a formation and closure of an opening that communicates inside and outside the polymerization space; a sensor that detects the formation and closure of the opening by the cover; a controller that receives signals from the sensor, and based on the formation and closure of the opening, turns on some of the light sources having two or more directions of light axis with the opening closed, and turns on some of the light sources having fewer directions of light axis than with the opening closed, with the opening open.

The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthetic base and a plurality of prosthetic teeth, wherein the method is carried out with the use of a virtual three-dimensional dental prosthesis model of the dental prosthesis which is to be produced, and wherein the virtual three-dimensional dental prosthesis model comprises virtual prosthetic teeth and a virtual prosthetic base, including the following chronological steps: A) producing a physical occlusion plate, wherein a region of the surface of the occlusion plate is formed by a negative of the coronal sides of the virtual prosthetic teeth of the virtual dental prosthesis model, wherein the location and orientation of the virtual prosthetic teeth relative to one another corresponding to the virtual dental prosthesis model remain retained in the shape of the surface of the occlusion plate; B) placing and securing preassembled prosthetic teeth on the occlusion plate, wherein the coronal sides of the pre-assembled prosthetic teeth are placed on the surface of the occlusion plate formed by the negative; C) securing the occlusion plate, with the prosthetic teeth secured therein, in a device for the layered forming of three-dimensional plastic structures; and D) printing the prosthetic base onto the basal ends of the prosthetic teeth with the device for the layered forming of three-dimensional plastic structures on the basis of the shape of the virtual prosthetic base.

The invention also relates to a dental prosthesis produced with such a method and a device for carrying out such a method.

The invention relates to a method for polymerizing and curing a dental polymerization composite resin using a light irradiating device, said light irradiating device comprising at least one blue LED with an emission peak at a wavelength between 430 nm and 490 nm and at least one ultraviolet or near-UV LED with an emission peak between 350 nm and 420 nm, the at least one blue LED is first operated without the at least one ultraviolet or near-UV LED, and the at least one ultraviolet or near-UV LED is operated later, wherein the power of the at least one blue LED and the power of the at least one ultraviolet or near-UV LED are controlled in a programmed manner based on time, and the light irradiated from the at least one blue LED and the at least one ultraviolet or near-UV LED of the light irradiating device is irradiated onto the dental polymerization composite resin, wherein the dental polymerization composite resin is thereby polymerized and cured.

The invention also relates to a light irradiating device for polymerizing and curing a dental polymerization composite resin, said light irradiating device having at least one blue LED with an emission peak at a wavelength between 430 nm and 490 nm and at least one ultraviolet or near-UV LED (2) with an emission peak between 350 nm and 420 nm, and a controller for temporally controlling the power of the at least one blue LED and for temporally controlling the power of the at least one ultraviolet or near-UV LED independently of each other, wherein the controller is designed, in particular programmed, to carry out such a method.

A method of attaching a dental article to the surface of a tooth includes providing the dental article and applying a coating including upconversion phosphors to a surface of the dental article. The method also includes applying a dental cement composition to the surface of the tooth and placing the dental article on the surface of the tooth such that the coating is adjacent the dental cement composition. The dental cement composition includes a polymerizable resin and a photoinitiator and is substantially free of upconversion phosphors. The method further includes irradiating the coating with a radiation source that emits radiation at a pre-determined fixed wavelength that causes the upconversion phosphors to emit radiation at an activation wavelength of the dental cement composition photoinitiator such that the dental cement composition cures in a region adjacent the coating and removing remaining uncured dental cement composition outside the dental article from the tooth.

A dental light irradiation device (1) which has a light emitting diode/LED (15) and a heat sink (16) for dissipating heat generated by the LED. The heat sink (16) is formed of a composition which includes a polymer and a filler. The filler provides the composition with increased thermal conductivity relative to the polymer alone. The invention helps maximizing the convenience in handling of dental light devices.

Provided herein are curable compositions for use in a high temperature lithography-based photopolymerization process, a method of producing crosslinked polymers using said curable compositions, crosslinked polymers thus produced, and orthodontic appliances comprising the crosslinked polymers.

This invention relates to a tooth repair system including a method of: drilling an aperture in, e.g., a broken anterior tooth to a predetermined depth; providing a fiber opticpreferably of a diameter of between 0.3 and 1 millimeter and elastic modulus of between 22 GPa and 83 GPawith a length longer than the predetermined depth; placing and adhering the fiber optic within the first aperture so that a portion of the fiber optic is exposed beyond the broken tooth surface; and restoring the broken tooth surface around the exposed fiber optic so that the fiber optic anchors a restored tooth portion to the broken tooth surface. The system also provides a tooth repair pin with the above characteristics, being acid-etched and silane coated with a carrier sleeve.

The present disclosure provides methods, devices, and systems for the creation of attachments for use with dental appliances and changeable shaped attachments. For instance, an attachment template tray for creating and placing attachments used in moving teeth of a patient can include an attachment template tray body having a first surface shaped to conform to the contours of exterior surfaces of teeth of a patient and including a portion of the first surface that provides a cavity to form the exterior surfaces of an attachment that is to be attached to the exterior surface of one of the teeth and an integrated light source, power source, and actuation mechanism on the body of the attachment template tray, wherein the power source provides power to the light source when the actuation mechanism is actuated.

Molds for fabrication of custom and potentially modifiable abutments and impression posts for dental implants with various degrees of angulations (including zero degrees) and various dimensions are provided, with a generally oval shape that expands laterally upwards, a symmetrical or asymmetrical cross-section, and regular surfaces, that are fabricated as one piece, or as two coupling pieces snapping onto each other. Custom abutments achieve the development of a custom gingival emergence profile, three dimensionally, which is potentially modifiable according to the needs of each particular clinical case. Custom impression posts that correspond in dimensions and angulations to the abutments allow the accurate recording and transfer of the developed gingival emergence profile from the mouth onto the working cast, where the final implant prosthesis is fabricated. Custom abutments and impression posts have properties and design that allows their preparation and usage as temporary abutments for the cementation and support of temporary prostheses.