Zuckerman G R
Quintessence Int. 1990 Aug;21(8):629-35.
The resistance and retention of a fixed partial denture are influenced by the number and distribution of the abutment teeth that support it, the path of insertion, the shape of the arch to which it must conform, and the occlusal relationship it will have with the opposing teeth. If the prosthesis is to be designed properly, it is necessary to understand how each of these factors influences the stability of the prosthesis and its ability to resist dislodgment. If the conditions that contribute to the instability of the prosthesis are misunderstood, overlooked, or ignored, it is impossible to design a prosthesis that will be predictably successful.
支持它的基牙数量和分布、就位道、它必须与之适配的牙弓形状以及它与对颌牙的咬合关系。若要正确设计修复体,有必要了解这些因素中的每一个如何影响修复体的稳定性及其抵抗脱位的能力。如果对导致修复体不稳定的情况产生误解、忽视或忽略,就不可能设计出可预测成功的修复体。