Bassett J L
Pract Periodontics Aesthet Dent. 1997 May;9(4):455-61; quiz 462.
The conventional approach for replacing congenitally missing mandibular lateral incisors dictates the placement of either a conventional porcelain-fused-to-metal (PFM) bridge, Maryland bridge, or fiber-reinforced composite veneer bridge. However, several appearance-related disadvantages have been reported in the use of a prosthesis which incorporates a metal substructure. To address these limitations, metal-free restorative alternatives have been recently developed to expand the clinical options when fabrication of these prostheses is indicated. The learning objective of this article is to present the utilization of a single pontic all-ceramic resin-bonded bridge to replace congenitally missing mandibular lateral incisors, where the existing mesiodistal spaces were narrow and the abutment teeth exhibited insufficient substance for the conventional treatment modality.
替换先天性缺失的下颌侧切牙的传统方法是使用传统的烤瓷熔附金属(PFM)桥、马里兰桥或纤维增强复合贴面桥。然而,使用带有金属亚结构的假体已报告了一些与外观相关的缺点。为了解决这些局限性,最近开发了无金属修复替代方案,以便在需要制作这些假体时扩大临床选择。本文的学习目标是介绍使用单桥全瓷树脂粘结桥来替换先天性缺失的下颌侧切牙,其中现有的近远中间隙狭窄,基牙对于传统治疗方式而言牙体组织不足。