The system is for assisting a surgeon in positioning an article relative to a target position. The system includes a computer for determining a surgical plan, sensors for sensing execution of the surgical plan by the surgeon, an advisor for advising the surgeon based upon comparison of the surgical plan and its execution and, selecting of different types of advise to give the surgeon. The system can also have an input for changing the surgical plan in the computer during surgery.

System for advising a surgeon

Over the past forty years, the technological evolution of ceramics for dental applications has been remarkable, as new materials and processing techniques are steadily being introduced. The improvement in both strength and toughness has made it possible to expand the range of indications to long-span fixed partial prostheses, implant abutments and implants. The present review provides a state of the art of ceramics for dental applications.

https://www.mdpi.com/1996-1944/3/1/351/pdf

Ceramics for Dental Applications: A Review

A computer implemented method includes providing a first set of digital data corresponding to an upper arch image of at least a portion of an upper dental arch of a patient, providing a second set of digital data corresponding to a lower arch image of at least a portion of a lower dental arch of the patient, providing bite alignment data representative of the spatial relationship between the upper dental arch and the lower dental arch of the patient, and aligning the upper and lower arch images relative to one another based on the bite alignment data until an aligned upper and lower arch image is attained The aligned upper and lower arch images are moved towards each other until a first contact point is detected and at least one of the upper and lower arch images is moved relative to the other in one or more directions to a plurality of positions for determining optimal occlusion position of the lower and upper dental arches

Methods for use in dental articulation

A computer-implemented method generates a computer model of one or more teeth by receiving as input a digital data set of meshes representing the teeth; selecting a curved coordinate system with mappings to and from a 3D space; and generating a function in the curved coordinate system to represent each tooth.

Efficient data representation of teeth model

The system and method includes a manipulator for manipulating a surgical instrument relative to a patient's body and, a position sensor for sensing the position of the surgical instrument relative to the patient's body. The manipulator can be manually or computer actuated and can have brakes to limit movement. In a preferred embodiment, orthogonal only motion between members of the manipulator is provided. The position sensor includes beacons connected to the patient and manipulator or surgical instrument and, a three dimensional beacon sensor adapted to sense the location and position of the beacons. Redundant joint sensors on the manipulator may also be provided. The system and method uses a computer to actively interact with the surgeon and can use various different input and output devices and modes.

System for manipulating movement of a surgical instrument with computer controlled brake

It is possible to produce complete crowns, inlays, and onlays as well as fixed prostheses from various materials through use of computer-aided design and manufacturing. This report from France stresses the clinical application of this system. After a long period of research, computer-aided design and computer-aided manufacturing (CAD-CAM) in dentistry has become clinically applicable. This article U exclusively aimed at the clinical practice of dentistry. Setting aside scientific considerations, the practitioner will learn, through this paper, how the system is used.

CAD-CAM in dentistry

A device for determining mandibular motion wherein three light emitting diodes at the vertices of a triangle are temporarily fixed to teeth of the subject, the light emitting diodes are sequentially energized, and two sensors responsive to the light emitting diodes are mounted on a headpiece applied to the head of the subject and are trained on the light emitting diodes.

Device for measuring and analyzing movements of the human body or of parts thereof

Dental CAD/CAM

Un dispositif de mesure et d'analyse de mouvements de parties du corps humain, notamment d'une mâchoire, comprend: A measuring device and analyzing movements of parts of the human body, in particular a jaw, comprising: - un ensemble de trois diodes electro-luminescentes (12) fixees de facon amovible sur la partie du corps dont le mouvement est a analyser, - a set of three light-emitting diodes (12) removably fixed to the body whose motion is to be analyzed, - deux capteurs (6) destines a suivre les mouvements des diodes (12), montes sur un support fixe (4, 5) de facon a ce que les diodes se trouvent dans leur champ, - two sensors (6) designed to follow the movements of the diodes (12) mounted on a fixed support (4, 5) so that the diodes are in their field, - et des moyens (24-27) pour commander l'eclairage des diodes, le fonctionnement des capteurs et le traitement des informations fournies par ceux-ci. - and means (24-27) for controlling the lighting of the diodes, the operation of the sensors and processing the information provided by them.

Measuring and analysing device for the movements of the human body or parts thereof

Ce dispositif comprend un ensemble de trois diodes electro-luminescentes fixees de facon amovible sur la partie du corps dont le mouvement est a analyser, deux capteurs destines a suivre les mouvements des diodes, montes sur un support fixe de facon a ce que les diodes se trouvent dans leur champ, et un dispositif pour commander l'eclairage des diodes, le fonctionnement des capteurs et le traitement des informations fournies par ceux-ci. La presente invention peut etre appliquee a la mesure et a l'analyse des mouvements d'une mâchoire.

Francois Duret

Papers

CAD-CAM in dentistry

Device for measuring and analyzing movements of the human body or of parts thereof

Dental CAD/CAM

Measuring and analysing device for the movements of the human body or parts thereof

Dispositif de mesure et d'analyse de mouvements du corps humain ou de parties de celui-ci