foer implantation designed fixture foer foerankring in benvaevnad, saasom kaekens benvaevnad, foer uppbaerning of a prosthesis, saasom a crown e d.

摘要

A fixture (1) intended for implanting and anchoring in bone tissue, particularly in bone tissue of the jaw, to support a prosthesis such as the crown of a tooth, said fixture having at least a surface layer of material compatible with the tissue, such as titanium, the fixture comprising a lower shaft portion (6) with external threading (11) and an upper, smooth, neck portion (2) and being arranged to be screwed into a hole drilled in the bone tissue, the diameter of the hole being substantially in agreement with the core diameter of the shaft portion. The diameter of the neck portion (2) lies within the interval between the outer diameter of the thread (11) on the shaft portion and the core diameter of the shaft portion. The neck portion (22) has an axial length exceeding the settlement in bone level which normally occurs upon use of the fixture.