Department of Prosthodontics, Government Dental College and Hospital, Nagpur, India.
J Prosthodont. 2011 Dec;20(8):652-5. doi: 10.1111/j.1532-849X.2011.00748.x. Epub 2011 Aug 24.
Prostheses may be attached to implants or implant abutments using screw retention or cementation. With the increased use of cement-retained, implant-supported restorations for the replacement of missing teeth, clinicians may choose to use a definitive cement to lute the definitive restoration. Loosening of an abutment screw is a challenging complication of cement-retained, implant-supported prosthetic restorations. Often, the abutment screw becomes loose from the implant body, whereas the crown remains cemented to the abutment. In such situations, separating the cemented crown from the underlying abutment or locating the abutment-screw access for removal of the restoration is a difficult task. The purpose of this report is to describe a simple technique for locating the abutment-screw access in the event of its loosening. The advantage of this technique is that it can facilitate easy location of the abutment screw, thus minimizing damage to the existing restoration and allowing it to be reused.
修复体可以通过螺丝固位或粘结剂固位连接到种植体或种植体基台。随着越来越多的缺失牙采用粘结固位、种植体支持的修复体，临床医生可能会选择使用永久性粘结剂来固定最终修复体。固位螺丝松动是粘结固位、种植体支持修复体的一种具有挑战性的并发症。通常情况下，固位螺丝从种植体上松动，而牙冠仍然粘结在基台上。在这种情况下，要将粘结的牙冠与基台分离，或者找到基台螺丝的进入点以拆除修复体是一项艰巨的任务。本报告的目的是描述一种在螺丝松动时找到基台螺丝进入点的简单技术。这种技术的优点是可以方便地找到基台螺丝，从而最大限度地减少对现有修复体的损坏，并允许其重复使用。
