Crothers A J, Wassell R W, Jepson N, Thomason J M
Department of Restorative Dentistry, Dental School, University of Newcastle Upon Tyne.
Dent Update. 1995 Jun;22(5):190-8.
Replacement of missing teeth with fixed bridgework often involves producing full crown retainers on teeth on both sides of an edentulous space. Unfortunately, this approach can result in the destruction of much healthy tooth tissue, and the clinician must balance the benefits of replacing missing teeth with the amount of tooth preparation required. Current thinking in restorative dentistry places the preservation of tooth tissue at a premium, and most practitioners are happy to use techniques that embrace this philosophy. Because of this, cantilever bridges have an increasing role in dental practice, where the replacement for a missing tooth or teeth has one or more abutments on only one side of the edentulous space, being unsupported at the other. Cantilever bridges fall into several types, depending on the number of abutments and types of retainers. This article describes the various cantilever bridge designs, considers the biomechanics of these restorations, and provides guidelines for their clinical use.
用固定桥修复缺失牙通常需要在无牙间隙两侧的牙齿上制作全冠固位体。不幸的是，这种方法可能会导致大量健康牙体组织的破坏，临床医生必须在修复缺失牙的益处与所需的牙体预备量之间进行权衡。修复牙科学的当前理念非常重视牙体组织的保存，大多数从业者乐于采用秉持这一理念的技术。因此，悬臂桥在牙科实践中发挥着越来越重要的作用，即在无牙间隙的一侧，缺失一个或多个牙齿的修复体只有一个或多个基牙，另一侧无支撑。悬臂桥根据基牙数量和固位体类型可分为几种类型。本文介绍了各种悬臂桥设计，探讨了这些修复体的生物力学，并提供了其临床应用指南。
