Balshi T J
Prosthodontics Intermedica, Institute for Facial Esthetics, Fort Washington, Pennsylvania 19034, USA.
Int J Oral Maxillofac Implants. 1996 Sep-Oct;11(5):660-6.
An analysis of 4,045 implants placed in function during a 5-year period yielded eight fractured implants (0.2%). All fractures had associated marginal bone loss. The majority (six of eight) were supporting posterior prostheses. Parafunctional habits were diagnosed in all patients with fractured implants. Most patients presented with loosening or fracture of prosthetic gold screws or abutment screws prior to fracture. This study reports on the treatment of fractured implants accomplished by refacing the fractured titanium and adapting new abutments or replacing the entire implant with subsequent prosthesis refabrication.
对5年内投入使用的4045颗种植体进行分析，发现8颗种植体发生骨折（0.2%）。所有骨折均伴有边缘骨丢失。大多数（8颗中的6颗）为后牙修复体的支持种植体。所有种植体骨折患者均被诊断有副功能习惯。大多数患者在种植体骨折前出现修复金螺钉或基台螺钉松动或骨折。本研究报告了通过对骨折的钛部件进行表面修整、适配新的基台或更换整个种植体并随后重新制作修复体来治疗骨折种植体的方法。
