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Home Cosmetic Surgery Device-for-fitting-a-matrix-to-a-tooth-to-be-filled

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 Device for fitting a matrix to a tooth to be filled

Details
Inventors: von Weissenfluh, Beat;
Assignee: Hawe-Neos Dental Dr. H. Von Weissenfluh S.A. (Bioggio, CH)
Primary Examiner: O'Connor; Cary E.
Assistant Examiner:
Attorney, Agent or Firm: Young & Thompson

A device for obtaining the fitting of a matrix to a tooth to be filled comprises matrix (5) and wedge (4) or its attachment part (7) made of resin "with memory that is deformable by illumination". The device is made such that when it is illuminated it deforms and pushes matrix (5) to precisely occupy the radicular recess of the tooth to be filled, while when it is not illuminated it again assumes its normal shape. Thus, one obtains a perfect filling that perfectly fits the shape of the tooth.

DETAILED DESCRIPTION The device according to the invention makes it possible to resolve the problem and is characterized in that the matrix and the wedge or its attachments are made of resin with memory that is essentially deformable through illumination or heating.
In the course of the treatment the whole unit, either illuminated or heated in a suitable manner, will be deformed, thus making the matrix adhere perfectly to the shape of the tooth to be filled.
In fact, there have recently appeared on the market some deformable resins "with memory," so to speak, either by illumination or by heating.
These resins, under the action of light or heat are deformed and when they are restored to normal light or temperature, they again take on their initial shape, just as though they had remembered it.
The device according to the present invention takes advantage of this important and curious property of these resins.



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