Method of preventing inner crown of removable restoration tooth from becoming disengaged with natural or artificial abutment tooth and the structure of the inner crown

摘要

A method is designed to mount an inner crown of a restoration tooth on a natural or artificial abutment. The method involves a first step in which the inner crown is provided in a hollow interior with a cement coating before the inner crown is fitted over the natural or artificial abutment. The natural or artificial abutment is then provided with a retaining hole which is drilled into an interior of the natural or artificial abutment from one upright wall of the inner crown. The retaining hole is used to retain a retention pin or securing the inner crown to the natural or artificial abutment. The inner crown is thus prevented from becoming disengaged with the natural or artificial abutment by the cement coating and the retention pin.