Abstract：
OBJECTIVE: This study investigated the effect of implant vertical positioning within alveolar ridge preservation (ARP) sites on implant stability quotient (ISQ) values, which were measured 10 weeks post-implantation.
METHODS: Patients who underwent ARP using collagenized deproteinized bovine bone mineral, followed by implant placement in the posterior area, were divided into 2 groups: the within-ARP group and the beyond-ARP group. In the within-ARP group, osteotomy and implant placement occurred within the ARP boundary. In contrast, in the beyond-ARP group, these procedures were performed beyond the ARP boundary, incorporating 3 mm of pristine bone at the implant\'s apex. Bone quality was assessed by tactile sense, and both insertion torque during implant surgery and ISQ values at 10 weeks post-implant surgery were measured. Multiple linear regression analysis and Pearson correlation analysis were used to explore the relationship between insertion torque and ISQ values.
RESULTS: In total, 30 ARP sites in 28 patients were analyzed. There was no significant difference in bone quality, as determined by tactile sense, between the within-ARP and beyond-ARP groups. At the time of implant placement, the beyond-ARP group exhibited a higher insertion torque (33.33±13.39 Ncm) compared to the within-ARP group (17.08±11.17 Ncm). However, the ISQ values were similar between the 2 groups 10 weeks after implant placement. A positive correlation between insertion torque and ISQ values was confirmed at 10 weeks post-implant.
CONCLUSIONS: The engagement of pristine bone may facilitate high insertion torque during the placement of implants in ARP sites. Nevertheless, by 10 weeks post-implantation, the ISQ values were found to be comparable, irrespective of the implant\'s position.
METHODS: Patients who underwent ARP using collagenized deproteinized bovine bone mineral, followed by implant placement in the posterior area, were divided into 2 groups: the within-ARP group and the beyond-ARP group. In the within-ARP group, osteotomy and implant placement occurred within the ARP boundary. In contrast, in the beyond-ARP group, these procedures were performed beyond the ARP boundary, incorporating 3 mm of pristine bone at the implant\'s apex. Bone quality was assessed by tactile sense, and both insertion torque during implant surgery and ISQ values at 10 weeks post-implant surgery were measured. Multiple linear regression analysis and Pearson correlation analysis were used to explore the relationship between insertion torque and ISQ values.
RESULTS: In total, 30 ARP sites in 28 patients were analyzed. There was no significant difference in bone quality, as determined by tactile sense, between the within-ARP and beyond-ARP groups. At the time of implant placement, the beyond-ARP group exhibited a higher insertion torque (33.33±13.39 Ncm) compared to the within-ARP group (17.08±11.17 Ncm). However, the ISQ values were similar between the 2 groups 10 weeks after implant placement. A positive correlation between insertion torque and ISQ values was confirmed at 10 weeks post-implant.
CONCLUSIONS: The engagement of pristine bone may facilitate high insertion torque during the placement of implants in ARP sites. Nevertheless, by 10 weeks post-implantation, the ISQ values were found to be comparable, irrespective of the implant\'s position.
摘要：
目的：本研究调查了牙槽脊保留（ARP）部位内植入物垂直定位对植入物稳定性商（ISQ）值的影响，植入后10周测量。
方法：使用胶原化脱蛋白牛骨矿物质接受ARP的患者，然后在后部放置植入物，分为2组：ARP内组和ARP外组。在ARP内组中，截骨和植入物放置发生在ARP边界内.相比之下,在超出ARP的组中，这些程序是在ARP边界之外执行的，在植入物的顶端结合3毫米的原始骨。骨质量是通过触觉来评估的，测量植入手术期间的插入扭矩和植入手术后10周的ISQ值。采用多元线性回归分析和Pearson相关分析探讨插入力矩与ISQ值的关系。
结果：总计，对28例患者的30个ARP位点进行分析。骨质量无显著差异,由触觉决定，在ARP内和ARP外的组之间。在植入时,与ARP内组(17.08±11.17Ncm)相比,ARP外组的插入扭矩(33.33±13.39Ncm)更高.然而,植入后10周,两组间的ISQ值相似.植入后10周证实了插入扭矩和ISQ值之间的正相关。
结论：原始骨的接合可能有助于在将植入物放置在ARP部位期间的高插入扭矩。然而，植入后10周，发现ISQ值具有可比性，无论植入物的位置。
方法：使用胶原化脱蛋白牛骨矿物质接受ARP的患者，然后在后部放置植入物，分为2组：ARP内组和ARP外组。在ARP内组中，截骨和植入物放置发生在ARP边界内.相比之下,在超出ARP的组中，这些程序是在ARP边界之外执行的，在植入物的顶端结合3毫米的原始骨。骨质量是通过触觉来评估的，测量植入手术期间的插入扭矩和植入手术后10周的ISQ值。采用多元线性回归分析和Pearson相关分析探讨插入力矩与ISQ值的关系。
结果：总计，对28例患者的30个ARP位点进行分析。骨质量无显著差异,由触觉决定，在ARP内和ARP外的组之间。在植入时,与ARP内组(17.08±11.17Ncm)相比,ARP外组的插入扭矩(33.33±13.39Ncm)更高.然而,植入后10周,两组间的ISQ值相似.植入后10周证实了插入扭矩和ISQ值之间的正相关。
结论：原始骨的接合可能有助于在将植入物放置在ARP部位期间的高插入扭矩。然而，植入后10周，发现ISQ值具有可比性，无论植入物的位置。
