1974-10-29
1976-04-27
Peshock, Robert
A61C 1300
Patent
active
039524140
ABSTRACT:
There is disclosed a method for the prevention of osteitis and for the prevention of atrophy of alveolar bone, which comprises embedding an implant into a boney cavity such as a cystic cavity or an alveolus after a tooth extraction. The implant is a body of a tissue-compatible material and has a smooth unbroken exterior surface defining a bulbous, gibbous shape which generally follows the contour of the cavity. It is important that the material of the implant be inert to the body. The implant can be employed in cavities which are too large to permit the normal primary and secondary healing processes to fill the cavity with trabecular bone tissue. In the preferred embodiment, the invention is applied to the prevention of atrophy of alveolar bone following the extraction of a tooth. In this application, the implant is placed in the socket following removal of the tooth. The size and placement of the implant are sufficient to locate the occlusal end of the implant approximately 3 to 4 mm. beneath the height of the boney tissue. When the implant is positioned at this depth, the normal healing processes are adequate to entirely surround the implant with trabecular bone and to form an occlusal layer of boney tissue above the implant. This reinforces the alveolar bone similar to steel reinforced concrete. The surrounding alveolar process retains its original strength and shape and atrophy is prevented.
REFERENCES:
patent: 2210424 (1940-08-01), Morrison
patent: 3579831 (1971-05-01), Stevens
patent: 3589011 (1971-06-01), Sneer
patent: 3715331 (1973-02-01), Molnar
patent: 3851393 (1974-12-01), Weiss
Pokras Norman M.
Shovers Aaron H.
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