Studies on the Displacement of Abutments, Changing Angles, Heights and Shapes of Konus-telescope Inner Crowns

It is clinically well known that the secondary splinting is as effective as the primary splinting, using the konus-telescope crown. The purpose of this study is to investigate and to evaluate the displacement of the konus-telescope outer crown under the lateral loads of them, changing angles, heights and shapes of konus-telescope inner crowns. The results were as follows: 1. The horizontal and vertical displacement of the outer crown were influenced by not so much the angle as the height of inner crown. 2. As for inner crown shape, the displacement of c.s.c. type outer crown was larger than that of konus-type.