Kulakov A A, Badalyan V A, Bagirov T M
Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia, 119991.
Stomatologiia (Mosk). 2018;97(2):25-26. doi: 10.17116/stomat201897225-26.
The aim of the study was to compare estimated efficiency of fractured dental implant screw removal methods. Twenty screws in implant internal connections were fractured in animal model to test fragment retrieval comparing two methods: using ultrasonic tools (group 1, 10 implants) and special reverse force kit (group 2, 10 implants). Removing screws with ultra-sonic tools proved to be slightly more effective, than using specialized kit. Mean procedure time in group 1 was 4 min more than in group 2. The possibility of screw retrieval correlates with fracture level, as deeper fractured screws were the easiest ones to remove.
本研究的目的是比较折断牙种植体螺钉取出方法的估计效率。在动物模型中，将种植体内连接的20颗螺钉折断，以比较两种方法取出碎片的情况：使用超声工具（第1组，10颗种植体）和特殊的反向力套件（第2组，10颗种植体）。事实证明，使用超声工具取出螺钉比使用专用套件稍微更有效。第1组的平均操作时间比第2组多4分钟。螺钉取出的可能性与骨折水平相关，因为骨折位置越深的螺钉越容易取出。
