Gutta-percha compositions for obturating dental root canals

Details Gutta-percha compositions for obturating dental root canals Gutta-percha compositions for obturating dental root canals

2007-06-27

2010-11-23

Eashoo, Mark (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S113000, C523S114000, C523S115000, C523S117000, C433S224000, C433S226000, C433S228100, C106S035000

Reexamination Certificate

active

07838573

ABSTRACT:
Improved compositions comprising a mixture of gutta-percha and a hydraulic material containing calcium silicate, calcium aluminate, calcium phosphate, and calcium sulfate compounds are provided. Preferably, the composition includes hydroxylapatite mineral. The composition is particularly suitable for obturating and sealing dental root canals. The composition should provide a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the composition should help promote the growth of new bone and tissue surrounding the root tip area.

REFERENCES:
patent: 5415547 (1995-05-01), Torabinejad et al.
patent: 5540766 (1996-07-01), Castellani
patent: 5648403 (1997-07-01), Martin
patent: 5769638 (1998-06-01), Torabinejad et al.
patent: 5925179 (1999-07-01), Mannschedel
patent: 2003/0159618 (2003-08-01), Primus
patent: 2004/0226478 (2004-11-01), Primus
patent: 2005/0263036 (2005-12-01), Primus
patent: 2007/0098811 (2007-05-01), Lu et al.
patent: WO 2005087178 (2005-09-01), None

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