McDowell G C, Fisher R L
J Prosthet Dent. 1982 Apr;47(4):360-5. doi: 10.1016/s0022-3913(82)80081-4.
Within the experimental design of this study, the following conclusions were drawn: A unilateral vertical dislodging force applied to a distal-extension removable partial denture is transmitted to the supporting structures with a vertical and horizontal component. The presence of indirect retainers transmits the vertical component of force to both indirect retainer abutment teeth while the horizontal component is transmitted to the indirect retainer and primary abutments on the side opposite the loading force. The presence of indirect retainers reduces the stress to the primary abutment teeth. The presence of indirect retainers distributes stress to more supporting teeth.
在本研究的实验设计中，得出了以下结论：施加于远中游离端可摘局部义齿的单侧垂直脱位力会以垂直和水平分力的形式传递至支持结构。间接固位体的存在会将垂直分力传递至间接固位体基牙，而水平分力则传递至与加载力相反一侧的间接固位体和主要基牙。间接固位体的存在可降低主要基牙的应力。间接固位体的存在会将应力分散至更多的支持牙。
