Title:
INTEGRAL GUTTA PERCHA CORE/CONE OBTURATION TECHNIQUE
Document Type and Number:
WIPO Patent Application WO2004060192
Kind Code:
B1
Abstract:
An integral, one-piece silanated particle impregnated gutta percha core/cone technique employs a thin layer of a luting agent, such as glass ionomer cement with a machined gutta percha core/cone (10), precisely matches the preparation, thereby reducing leakage and achieving a hermetic seal. The hermetic seal is further enhanced by a mono-block bond that occurs between the silanated particles in the gutta percha and the appropriate chemical sealant. Optional cryogenic treatment of the gutta percha material changes its molecular weight, making it stiffer and conducive to forming an integral, one piece core/cone, without the need for a separate carrier core to install the tapered gutta percha core/cone (10) within the root canal. Additionally, the tapered body of the core/cone may be reticulated in a slightly three dimensional texturized framework (20) to increase surface area and therefore increase retention. Optional line demarcation indicia (14a) are also placed on the core/cone. Additionally, the head (12) of the core/cone can be gripped by a delivery vehicle clasp.
Inventors:
KOCH KENNETH (US)
BRAVE DENNIS (US)
BRAVE DENNIS (US)
Application Number:
PCT/US2003/041236
Publication Date:
September 23, 2004
Filing Date:
December 22, 2003
Export Citation:
Assignee:
KOCH KENNETH (US)
BRAVE DENNIS (US)
BRAVE DENNIS (US)
International Classes:
A61C5/04; A61K6/884; A61K6/896; (IPC1-7): A61C5/02
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