Method for producing a dentist tool

A - Human Necessities – 61 – C

Patent

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Details

A61C 1/08 (2006.01) A61C 13/00 (2006.01)

Patent

CA 2750698

Method for producing a dentist tool formed by an overlay to be used by a dentist in removing tooth structure, said method comprising the steps of: acquiring three- dimensional data relating to a shape of a tooth and at least a part of a neighbouring tooth; processing said three-dimensional data with a computer so as to determine an overlay fitting said tooth and fitting at least said part of said neighbouring tooth; further processing said three-dimensional data with said computer so as to determine a predetermined part of tooth structure to be removed from said tooth so as to prepare said tooth for further treatment; determining at least two guiding edges of which a first and a second guiding edge are spaced apart from each other by a distance d of at least 0.5 mm, said guiding edges being configured so as to enable said dentist cutting tool to be guided by simultaneously contacting said first and said second guiding edge in such a manner as to enable a guided removal of at least partially said predetermined part of tooth structure; producing said determined overlay having said determined guiding edges.

La présente invention se rapporte à un procédé de production d'un instrument dentaire formé par un revêtement à utiliser par un dentiste pour retirer une structure de dent, ledit procédé comprenant les étapes consistant à : obtenir des données tridimensionnelles se rapportant à la forme d'une dent et à au moins une partie d'une dent voisine ; traiter lesdites données tridimensionnelles à l'aide d'un ordinateur de manière à déterminer un revêtement s'adaptant à ladite dent et s'adaptant au moins à ladite partie de ladite dent voisine ; traiter encore lesdites données tridimensionnelles à l'aide dudit ordinateur de manière à déterminer une partie prédéfinie de structure de dent à retirer de ladite dent de manière à préparer ladite dent pour un traitement supplémentaire ; déterminer au moins deux bords de guidage dont des premier et second bords de guidage espacés l'un de l'autre d'une distance d d'au moins 0,5 mm, lesdits bords de guidage étant conçus pour permettre audit instrument de découpe dentaire d'être guidé tout en mettant simultanément en contact lesdits premier et second bords de guidage de manière à permettre un retrait guidé d'au moins une partie de ladite partie prédéfinie de structure de dent ; produire ledit revêtement déterminé comportant lesdits bords de guidage déterminés.

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