Dentistry – Method or material for testing – treating – restoring – or... – Endodontic
Reexamination Certificate
2006-08-29
2006-08-29
O'Connor, Cary E. (Department: 3732)
Dentistry
Method or material for testing, treating, restoring, or...
Endodontic
Reexamination Certificate
active
07097455
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, 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 within the root canal. Additionally, the tapered body of the core/cone may be reticulated in a slightly three dimensional texturized framework to increase surface area and therefore increase retention. Optional line demarcation indicia are also placed on the core/cone. Additionally, the head of the core/cone can be gripped by a delivery vehicle clasp.
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Brave Dennis
Koch Kenneth
McHale William
Endodontic Educations Seminars LLC
O'Connor Cary E.
Premier Dental Products Co.
Walker Alfred M.
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