Endodontic procedure and instrument

Dentistry – Method or material for testing – treating – restoring – or... – Endodontic

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Details

433 81, 433102, A61C 502, A61G 502

Patent

active

053021290

ABSTRACT:
An endodontic procedure is disclosed which involves extirpating a root canal of a tooth, and then inserting a machine driven compactor which is coated with alpha phase gutta percha into the extirpated canal. The compactor is then rotated at a relatively high speed and so that the alpha phase gutta percha is plasticized solely by the frictional heat generated by the rotating compactor. The plasticized gutta percha is thrown radially outwardly, and pushed downwardly, so as to fill all of the voids of the canal, and the compactor is then withdrawn and the gutta percha cools and solidifies. A crown may be then fitted to the tooth above the gutta percha in the conventional manner.

REFERENCES:
patent: 4299571 (1981-11-01), McSpadden
patent: 4332561 (1982-06-01), McSpadden
patent: 4353698 (1982-10-01), McSpadden
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patent: 4758156 (1988-07-01), Johnson
patent: 4871312 (1989-10-01), Heath
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patent: 4934934 (1990-06-01), Arpaio, Jr. et al.
patent: 5067900 (1991-11-01), McSpadden
patent: 5083923 (1992-01-01), McSpadden
patent: 5089183 (1992-02-01), Johnson
patent: 5098298 (1992-03-01), Johnson
patent: 5118297 (1992-06-01), Johnson
Oral Surg., "The thermomechanical properties of gutta-percha", Jun., 1974, vol. 37, No. 6, pp. 954-961.

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