种植体骨结合稳定性测量及相关因素分析

The stability of osseointegrated implants and the relative factors

目的：测量种植体骨结合稳定系数（ISQ），分析影响稳定性的相关因素。方法：对39名种植术后3～6个月后要进行修复的患者（男25，女14），102枚ITI种植体骨结合稳定性进行共振频率（RFA）测量。结果：ITI种植体骨结合ISQ为：76．29±5．25；ITI种植体稳定性主要受种植体骨质影响，密质骨（Ⅰ、Ⅱ）种植体稳定性（78．73±3．5）要高于松质骨（Ⅲ、Ⅳ）的稳定性（74．27±5．63）（P〈0．05）；上颌与下颌的种植体稳定性差异不明显（P〉0．05），上颌后牙区稳定性（77．57）要高于前牙区（73．65，P〈0．05），下颌前后牙区无明显差别（P〉0．05）；不同长度不同直径种植体之间稳定性无明显差异（P〉0．05）。结论：种植体稳定性与种植体周围骨质关系密切，种植体ISQ可以协助判断上部结构的修复时机，缩短种植修复的周期。

Objective：To evaluate the stability of osseointegrated implants. Methods：39 patients （ 25 males and 14 females） wearing implants for 3 -6 months were included. The stability of 102 ITI implants in the patients was measured with OSSTELL instrument. Results：The implant stability quotient （ISQ） of the ITI osseointegrated implants was 76.29 ±5.25. Mainly the bone type affected the stability. The ISQ was higher in type Ⅰ and type Ⅱ bone（78.73± 3.5 ） than in type Ⅲ and type Ⅳ bone （74, 27 ± 5.63 ）. The position, length and diameter of the implants did not affect the stability （P 〉 0.05 ）. Conclude：The bone type may affect the stability of ITI osseointegrated implants.