Gumaer K I, Salsbury R L, Sauerschell R J, Slighter R G, Drobeck H P
J Oral Maxillofac Surg. 1985 Feb;43(2):73-9. doi: 10.1016/0278-2391(85)90052-7.
To determine if there is a need for close conformation of a hydroxylapatite implant to the root socket for successful prevention of alveolar ridge resorption after tooth extraction, second premolars and lateral incisors of six mature baboons were extracted bilaterally, and custom-fitted root replicas or half-length, plug-shaped forms of hydroxylapatite were implanted in the fresh sockets. Results showed that precise fit, as achieved by a custom-fitted implant, was not necessary for success. All implants were completely accepted, with evidence of new bone formation continuing for up to six months, the duration of the study. No resorption of the alveolar ridge was observed by gross or microscopic examination.
为了确定羟基磷灰石植入物是否需要与牙槽窝紧密贴合，以成功预防拔牙后牙槽嵴吸收，对6只成年狒狒的双侧第二前磨牙和侧切牙进行拔除，并将定制的牙根复制品或半长度、柱状的羟基磷灰石植入新鲜牙槽窝。结果表明，定制植入物所实现的精确贴合并非成功的必要条件。所有植入物均被完全接受，有新骨形成的证据持续长达6个月，即研究的持续时间。通过大体或显微镜检查未观察到牙槽嵴吸收。
