Method and material for obturating an extirpated root canal

Details Method and material for obturating an extirpated root canal Method and material for obturating an extirpated root canal

1992-01-27

1994-01-04

Mancene, Gene

Dentistry

Method or material for testing, treating, restoring, or...

Endodontic

A61C 502, A61G 502

Patent

active

052755622

ABSTRACT:
A method of obturating an extirpated root canal and an associated filler material utilizes two classes of gutta-percha, one class of which becomes plasticized at a predetermined temperature and the other class of which becomes plasticized at a temperature which is less than the predetermined temperature. In one embodiment of the method, the second class of gutta-percha is coated about the first class when in a plasticized condition, and in another embodiment of the method, the second class is pre-coated about the first class and the second class is heated to plasticized condition without plasticizing the first class. In either case, the first class of gutta-percha supports the plasticized second class when subsequently introduced into a root canal for filling the canal. To increase the rigidity of the first class of gutta-percha, the first class may be coated with a cured layer of methyl methacrylate before the second class of gutta-percha is coated about the first class. Following introduction of the two classes of gutta-percha into the canal, the classes may be condensed within the root canal system.

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Grassi, Michael D., et al; Changes in the Physical Properties of the Ultrafil Low-Temperature (70.degree.) Thermoplasticized Gutta-Percha System; Journal of Endodontics; vol. 15, No. 11, Nov. 1989; pp. 517-521.

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