Other

Premier Dental Products Company

Endodontic Educations Seminars LLC

Dennis G Brave

Kenneth L Koch

William A McHale

Arnold S Feldeman

Ronald M Brave

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.

Integral gutta percha technique

Integral gutta percha core/cone obturation technique

Dental instrument for placing obiturator

An improved electric switch of the type wherein a plunger mounted contactor contacts electric terminals to actuate or deactuate an electric circuit such as a security alarm circuit. The contactor fits into holes defined in the terminals, which are sized so that the contactor contacts the terminals when the plunger is pushed into the switch beyond a predetermined position, or the plunger is released by removing a protection plate, thereby actuating the electric circuit. One embodiment of the invention has a bullet-shaped plunger.

Electric switch

Growing community of inventors

Brooklandville, MD, United States of America

Dennis G Brave