Sterling Drug Inc.

Carbomedics Inc.

Michael Jarcho

Jack C Bokros

Axel D Haubold

Willard H Ellis

Michael Rossetti

Ronald L Salsbury

In a dental prosthesis having a post stem, a neck and a head, the stem has a terminal segment at the end opposite the head and an intermediate segment with an uneven surface between the terminal portion and the head. The radial extremities of the uneven surface extend precisely to the contour of a right circular cone tapering in the terminal direction, and the radial extremities of the outer surface of terminal portion extend radially outward beyond the contour of this cone. A socket is drilled into the alveolar bone using a drill bit having the same conical taper that the extremities of the uneven surface follow. The prosthesis is inserted into the socket with some pressure so that the terminal portion deforms the alveolar bone only at the deep end of the socket, locking the prosthesis into the socket and bringing the extremities of the uneven surface into firm surface contact with the wall of the socket.

Dental implant

Dental plaque-preventive compositions containing, as the active component thereof, certain 3-alkyl-4-hydroxymethyl-4-methyloxazolidines, and the method of use of the same.

Dental plaque-preventive oxazolidine containing compositions and method

A novel process is disclosed for producing a fracture-free shaped ceramic green body which comprises casting an aqueous suspension of hydroxylapatite, whitlockite or a mixture of these having a high water content and high drying shrinkage in an impervious mold, the cavity surfaces of which are coated with an inert water-immiscible lubricant; drying the casting under controlled conditions of temperature and humidity and removing adsorbed lubricant from the resulting dried green body.

Ceramic forming process

A novel ceramic form of hydroxylapatite and a novel ceramic product comprising a mixture of the latter and whitlockite, the preparation of these ceramics and dental restorative compositions and dental and surgical prosthetic materials containing the same are disclosed. Also described is a novel and improved process for producing polycrystalline ceramic oxides.

Process for producing polycrystalline ceramic oxides

A novel, polycrystalline whitlockite ceramic in either pore-free or porous form, processes for the preparation thereof and methods of using the same as biological implant materials are disclosed.

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Schodack, NY, United States of America

Michael Jarcho