A method and a system for determining a bite position between arch forms of a subject. The method comprises: receiving a 3D model including a first portion and a second portion respectively representative of lower and upper arch forms of the subject; determining, a respective distance value from each point of the first portion to the second portion; determining, for each point of the first portion, a respective weight value, thereby determining a respective weighted distance value; aggregating respective weighted distance values associated with each point of the first portion to determine an aggregate distance value being a remoteness measure between the first portion and the second portion; and determining the bite position based on the aggregate distance value.

The invention relates to a method for producing a denture, characterized by a) providing a predefined dental arch database, the dental arch database having data on maxilla and mandible arches in occlusion; b) generating the denture on the basis of the dental arch data on the maxilla and mandible arches in occlusion.

The invention relates to a removable dental appliance comprising an appliance body configured to at least partially surround a plurality of teeth of a patient. The appliance body defines a shell configured to receive a tooth of the plurality of teeth in an initial position and a bendable flap integrally formed with the appliance body to tether the flap to the shell. The bendable flap defines a boundary region around the bendable flap and includes abridge, wherein the bridge extends between the body and the flap at or adjacent the boundary region. In one specific embodiment, the bridge is an arcuate member and includes a spring bellows. The bendable flap and the bridge are configured to apply a force to the tooth to cause movement of the tooth toward a desired position when the removable dental appliance is worn by the patient.

Aspects of the present disclosure relate to systems, devices and methods for performing a surgical step or surgical procedure with visual guidance using an optical head mounted display. Aspects of the present disclosure relate to systems, devices and methods for displaying, placing, fitting, sizing, selecting, aligning, moving a virtual implant on a physical anatomic structure of a patient and, optionally, modifying or changing the displaying, placing, fitting, sizing, selecting, aligning, moving, for example based on kinematic information.

The present invention relates to a computer implemented method for modifying a digital three-dimensional model (3) of a dentition comprising: displaying an image of the dentition by applying a virtual camera to the three-dimensional model to render the image for a display (1); acquiring a line drawn by a user on the image on the display (1); projecting the acquired line, using the virtual camera (4), to a three-dimensional projection surface (7) approximating the shape of the dental arches and extending the upper and lower dental arches to cover any opening therebetween; obtaining visible teeth arch contour curves, namely incisal curve and gingiva border curve, of the upper and lower teeth arches, and projecting the teeth arch contour curves to the projection surface; selecting one of the teeth arch contour curves as teeth arch contour curve to be modified and selecting the other teeth arch contour curve of the same teeth arch or a curve derived therefrom as a baseline curve; deforming all teeth belonging to the selected contour curve to be modified along the projected line in the three-dimensional model of the dentition in a length direction such that at least parts of the selected contour curve to be modified, after deformation and projection to the projection surface, coincide with the projected line and any remaining parts of the selected contour curve to be modified are located between the projected line and the baseline curve, whereas the baseline curve remains unaffected by the deformation.

A digital workflow process and associated devices and tools for providing dental restorations and, more particularly, to precise and efficient reconstruction and replacement of teeth using novel digital workflows and improved dental scan bodies, abutments and other dental devices and tools to efficiently achieve a more precise fit and optimal form and function.

A dental appliance includes a first polymeric shell portion having one or more cavities shaped therein to removably conform to one or more teeth. The dental positioning appliance further includes at least one spacer. At least one spacer is coupled to the first polymeric shell portion. The dental appliance can also have a first arch member coupled to the at least one spacer and configured to provide at least some of a force needed to reposition one or more teeth from a first orientation to a second orientation different from the first orientation.

A method for monitoring and sustaining vitality of a target system (TS) dynamically by providing an object oriented information system (OOIS) for TS, receiving and monitoring information of surrounding environment of TS and information within TS by sensory units; creating received and monitored information wave packets (RMIWP); transform RMIWP into one or more processed information wave packets (PIWP) by translating frequencies of RMIWP into a common frequency; storing PIWP in ordered time sequence, space and logical classifications; recognizing strategic events (SE) based on stored PIWP, refining details of SE, recognizing a criteria for maximum vitality of TS, recognizing future plans (FP) based on SE and evaluating vitality of OOIS and recognizing a FP with maximum vitality, converting FP into steps in time and space for a motor unit for moving TS, monitoring movement of TS, comparing outcome with the criteria, and dynamically selecting a FP with maximum vitality.

The invention discloses a solution for generating transformation matrices associated with upper and lower: dental arches. A digital impression of the upper and lower dental arches, or a first digital impression of the upper dental arch and a second digital impression of the lower dental arch is obtained, and a digital three-dimensional model comprising the upper and lower dental arches, or a first digital three-dimensional model comprising the upper dental arch and a second digital three-dimensional model comprising the lower dental arch is/are generated based on the digital impression(s). The digital three-dimensional model(s) is/are output to produce separate physical three-dimensional models of the upper and lower dental arches. Scanning data associated with a desired target occlusion is obtained, the desired target occlusion being obtained based on a desired mutual position of the physical three-dimensional models of the upper and lower dental arches. The transformation matrices of the upper and lower dental arches to the desired target occlusion are determined based on the scanning data and the digital impression(s).

A system including a sensored ablation probe tip and a virtual stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit. A system including a sensored ablation probe tip and a stent, said sensored ablation probe tip for use in a tooth bud ablation procedure that results in tooth agenesis, said sensored ablation probe tip for use with an ablation probe unit.