半調節性咬合器の非作業側水平顆路の再現方法について

抄録

I.P.B, value was introduced as the new concept of non-working horizontal condylar path. The advantages of applying I.P.B. value for adjusting the semi-adjustable articulator can be summarized as follows:
1. Real orbit of non-working horizontal condylar path can be reproduced by I.P.B. value. Therefore, the non-working horizontal condylar path of the articulator adjusted by the I.P.B. value is more precise than that reproduced by the Bennett angle or by the immediate sideshift.
2. I.P.B. value indicates the relationships among the Bennett angle, the amount of immediate sideshift, and the angle of progressive sideshift. When the Bennett angle is measured on the articulator by means of the checkbite procedure, the amount of immediate sideshift and the angle of progressive sideshift can be obtained from the I.P.B. value table. Thus, nonworiking horizontal codylar path of the articulator can be adjusted with both immediate sideshift and progressive sideshift simultaneously.
3. The procedure for adjusting non-working horizontal condylar path by I.P.B. value on the semi adjustable articulator consists of three steps including 1) lateral check bite registration, 2) measuring the Bennett angle, and 3) articulator adjustment. This procedure is simple and provides better accuracy of reproducing the condylar path, in comparison with the traditional check bite procedure.