Patent ID: 8597024
Filing Date: 2013-12-03
Classification: A61C

Abstract:
1. A dental implant comprising: a two part stem having a separate distal stem portion adapted for implantation in a jawbone and a separate proximal stem portion adapted to receive an artificial tooth structure, the distal stem portion having a longitudinal opening which is open towards a proximal end of the distal stem portion and has a curved inside wall, the inside wall defines V-shaped recesses which are open towards the proximal end of the distal stem portion, a distal end of the proximal stem portion having a curved outside wall which fits into the longitudinal opening of the distal stem portion, the distal and proximal stem portions in an interconnected condition at least indirectly adjoin each other at a connecting location and have mutually facing surfaces in the connecting location, the mutually facing surfaces extend transversely with respect to a longitudinal axis of the dental implant, the distal and proximal stem portions have abutment surfaces which bear against each other in the interconnected condition and which limit the degree of approach of the mutually facing surfaces of the stem portions so that the abutment surfaces define a minimum spacing of the mutually facing surfaces of the stem portions; and a sealing body provided between the mutually facing surfaces of the distal and proximal stem portions at the connecting location, the sealing body having sealing surfaces which face towards the mutually facing surfaces and which in the interconnected condition of the distal and proximal stem portions bear sealingly against the mutually facing surfaces thereof, the sealing body bridges over the minimum spacing of the mutually facing surfaces of the stem portions; and wherein the outside wall of the proximal stem portion in a of the distal end thereof has V-shaped projections which are matched to the V-shaped recesses of the distal stem portion in such a way that when the distal stem portion and the proximal stem portion are connected together, the V-shaped recesses and the V-shaped projections cooperate in mutual contact and form the abutment surfaces, and wherein each of the V-shaped recesses includes at least one flank surface facing inclined toward the proximal end of the distal stem portion.