Abstract：
The objective of this study was to analyze the influence of insertion torque, bone type, and peri-implant bone loss on implant stability quotient (ISQ) of cylindrical external hexagon (EH) and Morse Taper (MT) implants. Forty-four single implants were placed in the edentulous areas of 20 patients who met the inclusion and exclusion criteria. Immediately after implant placement (t1) and after osseointegration (four and six months for mandible and maxilla, respectively) (t2), insertion torque, resonance frequency, and peri-implant bone loss were measured using probing depths and digital periapical radiography. A significant difference was noted in the ISQ values between t1 and t2 in type III bone for EH and MT implants. No significant difference in bone loss values was observed when comparing bone types for EH or MT in all evaluated sites. Based on marginal bone loss assessed using radiography, there was no significant difference between the MT and EH groups. A positive correlation between torque and ISQ t1 value was observed for MT (correlation: 0.439; p = 0.041) and EH (correlation: 0.461; p = 0.031) implants. For EH and MT implants, the greater the insertion torque, the greater was the ISQ value (moderately positive correlation). A weak negative correlation was found between bone type and ISQ t1 for MT implants. Contrarily, no correlation was observed between bone type and ISQ t1 for EH implants. In all cases, bone loss around the implants was clinically normal.
摘要：
这项研究的目的是分析插入扭矩的影响，骨类型,以及种植体周围骨质流失对圆柱形外六角（EH）和莫尔斯锥（MT）种植体稳定性商（ISQ）的影响。在20名符合纳入和排除标准的患者的无牙区域放置了44个单个植入物。植入物放置后（t1）和骨整合后（下颌骨和上颌骨的四个月和六个月，分别)(t2)，插入扭矩,共振频率,使用探测深度和数字根尖周X线摄影测量种植体周围骨丢失。对于EH和MT植入物，III型骨的t1和t2之间的ISQ值存在显着差异。当比较所有评估部位的EH或MT的骨类型时，未观察到骨丢失值的显着差异。根据射线照相术评估的边缘骨丢失，MT组和EH组之间无显著差别。对于MT（相关性：0.439；p=0.041）和EH（相关性：0.461；p=0.031）植入物，扭矩与ISQt1值之间呈正相关。对于EH和MT植入物，插入扭矩越大，ISQ值越大(中度正相关)。MT植入物的骨类型与ISQt1之间存在弱负相关。相反，EH植入物的骨类型与ISQt1之间未观察到相关性。在所有情况下,植入物周围的骨丢失在临床上是正常的.
