Kallus T, Bessing C
Specialist Centre for Dental Implants, Nacka, Sweden.
Int J Oral Maxillofac Implants. 1994 Mar-Apr;9(2):169-78.
The possible occurrence of loose gold and abutment screws retaining full-arch osseointegrated prostheses has been investigated. The prostheses had been in use for at least 5 years. The findings were related to clinical parameters such as accuracy of the superstructure, operator dependence, and clinical and radiological diagnosis of implant status after 5 years. The principles of the California Dental Association's (CDA) quality evaluation criteria were modified and applied in the study. Gold screw loosening was found to be related to framework misfit and was considered to be operator dependent to some extent. It is recommended that full-arch fixed prostheses be retightened after 5 years.
已对保留全牙弓骨整合假体的金修复体和基台螺钉可能出现松动的情况进行了调查。这些假体已使用至少5年。研究结果与一些临床参数相关，如上部结构的精度、术者依赖性以及5年后种植体状态的临床和放射学诊断。加利福尼亚牙科协会（CDA）质量评估标准的原则在本研究中得到了修改和应用。发现金螺钉松动与支架不贴合有关，并且在一定程度上被认为依赖于术者。建议全牙弓固定修复体在5年后重新拧紧。
