Osseointerfaced implanted artificial tooth.

摘要

An artificial tooth (10) is implantable in a jaw bone (26) by means of a tooth root (12) having distal and proximal end portions (28, 24). The distal end portion (28) of the root (12) extends into the jaw bone (26) and is fixed to the jaw bone (26). A hollow (18) extends from the proximal end portion (24) of the root which is accessible from the outer surface of the jaw bone, toward the distal end portion (28) of the root. A post (44) has a first end portion (46) which extends into the hollow (18) of the root (12) and is fixed to the root. A second portion (48) of the post (44) extends outwardly from the hollow (18) and has an outer surface (50) which slopes downwardly toward the first portion (46) of the post. A weakened portion (62) is provided in said second portion such that any excess lateral or shear forces will cause breakage thereof and thereby protect the root (12) in the jaw bone (26). A crown (70) is connected to the second portion (48) of the post.