A distractor for palatal expansion is disclosed. A high degree of treatment safety can be insured if anchoring parts each have at least two tooth supports and each subsection has at least one of the tooth supports and at least one of the palate rests to which this tooth support is connected in order to thus fix the support surfaces in their position against the palate.

A distractor for palatal expansion is disclosed. A high degree of treatment safety can be insured if anchoring parts each have at least two tooth supports and each subsection has at least one of the tooth supports and at least one of the palate rests to which this tooth support is connected in order to thus fix the support surfaces in their position against the palate.

Provided is a mouthpiece which is mounted in an oral cavity for use in changing the shape of the skull including the maxillary bone and is composed of a plurality of segment pieces, at least some of the segment pieces being configured to approach or be spaced apart from each other by means of a screw, wherein the surfaces of the segment pieces facing or contacting the skin in the oral cavity are configured such that the segment pieces overlap with each other, such that a gap does not occur in spite of the approaching or spacing-apart movement of the segment pieces relative to each other.

Provided is a mouthpiece which is mounted in an oral cavity for use in changing the shape of the skull including the maxillary bone and is composed of a plurality of segment pieces, at least some of the segment pieces being configured to approach or be spaced apart from each other by means of a screw, wherein the surfaces of the segment pieces facing or contacting the skin in the oral cavity are configured such that the segment pieces overlap with each other, such that a gap does not occur in spite of the approaching or spacing-apart movement of the segment pieces relative to each other.

A dental appliance having an integrally formed reservoir and/or an ornamental design integrated thereon. The ornamental design can be selected or customized by a patient. The design can be created by directing energy to the dental appliance to alter a material property of at least a portion of the appliance to create the design. Alternatively, a groove or recess can be formed on a surface of the appliance to either mechanically retain an ornamental design or the groove or recess can be filled with ink to form the design. The appliance, including the integrally formed reservoir, can be formed using direct fabrication techniques.

A dental appliance having an integrally formed reservoir and/or an ornamental design integrated thereon. The ornamental design can be selected or customized by a patient. The design can be created by directing energy to the dental appliance to alter a material property of at least a portion of the appliance to create the design. Alternatively, a groove or recess can be formed on a surface of the appliance to either mechanically retain an ornamental design or the groove or recess can be filled with ink to form the design. The appliance, including the integrally formed reservoir, can be formed using direct fabrication techniques.

Methods and systems for digitally designing a plurality of aligners are provided. In some embodiments, a method includes receiving an intraoral scan of the patient's teeth, and generating 3D dental model of the patient's teeth using the intraoral scan. The method can include identifying a movement path to move the patient's teeth from an initial arrangement toward a target arrangement through a plurality of intermediate arrangements in accordance with a treatment plan. The method can also include identifying one or more appliance features of at least one aligner, the one or more appliance features including one or more feature regions having one or more feature thicknesses. The method can further include instructing an additive manufacturing machine to directly fabricate the at least one aligner in a layer-by-layer fashion.

Methods and systems for digitally designing a plurality of aligners are provided. In some embodiments, a method includes receiving an intraoral scan of the patient's teeth, and generating 3D dental model of the patient's teeth using the intraoral scan. The method can include identifying a movement path to move the patient's teeth from an initial arrangement toward a target arrangement through a plurality of intermediate arrangements in accordance with a treatment plan. The method can also include identifying one or more appliance features of at least one aligner, the one or more appliance features including one or more feature regions having one or more feature thicknesses. The method can further include instructing an additive manufacturing machine to directly fabricate the at least one aligner in a layer-by-layer fashion.

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.

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.