Dentistry – Method or material for testing – treating – restoring – or... – Endodontic
Patent
1990-06-04
1992-01-28
Mancene, Gene
Dentistry
Method or material for testing, treating, restoring, or...
Endodontic
433 81, A61C 502
Patent
active
050839233
ABSTRACT:
A method of obturating an extirpated root canal utilizes two types of filler material, one type of which is in the form of a gutta-percha point and the other type of which is a thermoplasticized gutta-percha having a melting temperature of about 15.degree. to 20.degree. C. less than the melting temperature of the gutta-percha point. The steps of the method include the introducing of an initial amount of thermoplasticized gutta-percha in a heated and softened condition into the root canal so that the initial amount fills the bottom of the canal. A gutta-percha point is then positioned within the root canal and another amount of thermoplasticized gutta-percha is introduced in a heated and softened condition into the canal. The thermoplasticized gutta-percha is then manipulated into contact with the portion of the gutta-percha point positioned within the root canal so that the gutta-percha point is fed into and compacted within the root canal with the thermoplasticized gutta-percha. Additional amounts of thermoplasticized gutta-percha are introduced and manipulated into contact with additional gutta-percha points as necessary to fill the root canal with a core of filler material.
REFERENCES:
patent: 4353698 (1982-10-01), McSpadden
patent: 4457710 (1984-07-01), McSpadden
patent: 4681545 (1987-07-01), Lapcevic
patent: 4931096 (1990-06-01), Fujisawa et al.
Grassi, Michael D., et al; Changes in the Physical Properties of the Ultrafil Low-Temperature (70.degree. C.) Thermoplasticized Gutta-percha System; Journal of Endodontics; vol. 15, No. 11, Nov. 1989; pp. 517-521.
Lepiane Adriene B.
Mancene Gene
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