Bedrossian Edmond, Bedrossian Edmond Armand
Director, Implant Training, Alameda Medical Center, University of the Pacific, San Francisco, California; Honorary Member, American College of Prosthodontists; Private Practice, San Francisco, California.
Masters in Prosthodontics, University of Washington School of Dentistry, Seattle, Washington; Private Practice, San Francisco, California.
Compend Contin Educ Dent. 2019 Sep;40(8):524-529.
When treatment planning fully edentulous patients or those with terminal dentition, it is prudent for the implant team to review the support mechanism of the planned final prosthesis with both the patient and the treating team members. Two types of prosthetic designs are available for the fully edentulous arch: an implant-supported prosthesis and a tissue-supported prosthesis. The benefit of an implant-supported prosthesis is that residual bony volume is maintained by internal loading of the bone in centric occlusion. With a tissuesupported prosthesis there is absence of internal loading of the alveolus under function, leading to continuous resorption of alveolar bony volume. In treatment planning this group of patients, the differences between the two types of prostheses, as well as the anatomic limitations of the edentulous maxilla and mandible, should be taken into account to enable the optimal choice of number and distribution of implants for proper support of the final prosthesis. This article presents two cases describing an edentulous fixed treatment concept, one a maxillary case and the other a mandibular case.
在为全口无牙患者或牙列晚期患者制定治疗计划时，种植团队与患者及治疗团队成员一起回顾计划中的最终修复体的支持机制是明智的。全口无牙弓有两种修复设计可供选择：种植体支持的修复体和组织支持的修复体。种植体支持的修复体的好处是，在正中咬合时通过骨的内部负荷来维持剩余骨量。对于组织支持的修复体，在功能状态下牙槽嵴不存在内部负荷，导致牙槽骨量持续吸收。在为这组患者制定治疗计划时，应考虑两种修复体之间的差异以及无牙上颌骨和下颌骨的解剖学限制，以便为最终修复体的适当支持优化种植体数量和分布的选择。本文介绍两个病例，描述无牙固定治疗概念，一个是上颌病例，另一个是下颌病例。
