A transfer article includes an acrylate layer releasable from a release layer including a metal layer, a metal oxide layer, or a doped semiconductor layer at a release value of from 2 to 50 grams/inch (0.8 to 20 g/cm). A functional layer overlies the acrylate layer, wherein the functional layer includes at least one layer of a functional material selected to provide at least one of a therapeutic, aesthetic or cosmetic benefit on a dental appliance in a mouth of a patient, and wherein the transfer article has a thickness of less than 3 micrometers. A pattern of a transfer material is on a major surface of the functional layer, wherein the transfer material includes an adhesion modifying material chosen from release materials and adhesives.

According to an embodiment, a method for generating a digital data set for fabricating a physical dental bleaching tray useable to deliver an bleaching agent is disclosed. The method includes obtaining a three-dimensional digital representation of a patient’s dentition including teeth and gingiva; segmenting two or more teeth into individual tooth; identifying a facial surface of at least one of the segmented tooth; defining a facial surface portion including a surface area that is at least partly bound by a virtual boundary that is non- interfacing with the gingiva; generating a modified three-dimensional digital representation using the defined facial surface portion; and generating, based on the modified three-dimensional digital representation, the digital data set configured to be used in fabricating the physical dental bleaching tray.

Aspects relate to systems and methods for synergistic laser cleaning and whitening of teeth. In one aspect a system includes a laser system configured to perform a laser treatment on exposed tooth surfaces on a plurality of a patient's teeth, where the laser system includes a laser arrangement configured to generate a laser beam, an optical arrangement configured to direct the laser beam toward the exposed tooth surfaces, and a laser controller configured to control the laser beam to remove a pellicle from the exposed tooth surfaces, and a tray configured to apply a whitening agent to the exposed tooth surfaces after the laser treatment.

Systems, methods, and devices for producing appliances for expansion of the arch of a patient are provided. An arch expanding appliance comprises a force generating portion to apply an arch expansion force and a retention portion to hold the force generating portion on the teeth. The retention portion comprises a flexible portion and a stiff portion. The force generating portion applies a force to move teeth associated with the flexible portion, while the stiff portion resists movement of its associated teeth. The orthodontic appliances can be designed according to the specifications provided herein and manufactured using direct fabrication methods.

A dental appliance for positioning a patient's teeth includes a removable orthodontic tooth positioning appliance having teeth receiving cavities shaped to directly receive at least some of the patient's teeth and apply a resilient positioning force to the patient's teeth. The appliance includes a hard polymer layer having a hard polymer layer elastic modulus disposed between a first soft polymer layer having a first soft polymer layer elastic modulus and a second soft polymer layer having a second soft polymer layer elastic modulus. The hard polymer layer elastic modulus is greater than each of the first soft polymer layer elastic modulus and the second soft polymer layer elastic modulus. At least one of the first soft polymer layer and the second soft polymer layer has a flexural modulus of greater than about 35,000 psi.

The composition for bone regeneration, comprises a) a first phase (3) comprising a plurality of cross-linked hydrogel chunks (1) having a mean diameter of less than 1000 μm and incorporating an amount of mineral particles (2); and b) a second phase (4) comprising a physiologically-compatible aqueous liquid acting as a carrier for the chunks; the chunks being embedded in the second phase (4). The mineral particles (2) have a mean diameter of less than 10 μm and the amount of the mineral particles (2) is less than 20 weight-% of the first phase.

The composition for bone regeneration, comprises a) a first phase (3) comprising a plurality of cross-linked hydrogel chunks (1) having a mean diameter of less than 1000 μm and incorporating an amount of mineral particles (2); and b) a second phase (4) comprising a physiologically-compatible aqueous liquid acting as a carrier for the chunks; the chunks being embedded in the second phase (4). The mineral particles (2) have a mean diameter of less than 10 μm and the amount of the mineral particles (2) is less than 20 weight-% of the first phase.

An oral treatment protective operation device, comprising a protective cover assembly and a suspension support connected thereto. The protective cover assembly comprises a transparent protective cover; the protective cover is provided with a soft sealing sleeve in butt-joint with a patient's mouth and a connector connecting a strong suction pipe; the left side and the right side of the protective cover are provided with operation windows; the opening parts of the operation windows are provided with arc-shaped sliding plates, which are provided with circular operation holes; the operation holes are connected to soft arm sleeves; a concave part is formed on the side of the protective cover facing a doctor, and an angle-adjustable magnifying lens is arranged in the concave part; and the suspension support comprises a vertical-deflection adjusting rod, a transverse connecting rod and a connecting lock sleeve, and further comprises a stay cable or a stay bar.

Oral appliances, and systems and methods, which include oral appliances are described herein. An example oral appliance device for treatment of a sleep disorder or condition in a subject can include an upper portion configured to receive at least one maxillary tooth of the subject, and a lower portion configured to receive at least one mandibular tooth of the subject. The upper and lower portions are engageable such that the portions maintain a restricted orientation relative to each other when engaged, and the engaged restricted orientation is configured to maintain the mandible of the subject in a predetermined clinically beneficial orientation relative to the maxilla.

Oral appliances, and systems and methods, which include oral appliances are described herein. An example oral appliance device for treatment of a sleep disorder or condition in a subject can include an upper portion configured to receive at least one maxillary tooth of the subject, and a lower portion configured to receive at least one mandibular tooth of the subject. The upper and lower portions are engageable such that the portions maintain a restricted orientation relative to each other when engaged, and the engaged restricted orientation is configured to maintain the mandible of the subject in a predetermined clinically beneficial orientation relative to the maxilla.