Patent ID: 8287279
Filing Date: 2012-10-16
Classification: A61C

Abstract:
1. A dental implant comprising; an implant body having a custom made root portion adapted according to a tooth socket of a specific patent for implanting into the jaw, and a crown connection portion, attached to the coronal end of said root portion, for connecting to a crown; wherein, said custom made root portion is an analogue of an extracted tooth root or extraction socket, having a shape that is a copy of the shape of said tooth root or extraction socket, so that the extraction socket is almost completely filled by the custom made root portion when implanted; a plurality of protruding macro retentions connected to or formed integral with said custom root portion, said macro retentions located on said custom root portion and below an implant shoulder, so that when implanted said macro retentions are adapted to only protrude into thick, spongy bone, regularly found in the inter dental space, and in the case of terminal teeth, toward the bone at the posterior end of the tooth row, thereby causing pressure induced resorption only in regions of spongy bone and therefore securing primary stability of the implant; and wherein labial and lingual surfaces of said custom root portion and areas above said implant shoulder, adapted to contact thin cortical bone when implanted, are free of macro retentions, and are adapted to substantially conform to the extraction socket or stand slightly behind the surface of the tooth socket, therefore causing no pressure induced resorption or even fracture, such that by leaving a very small gap, fracture of the thin bone layer does not occur.