Carosi Paolo, Lorenzi Claudia, Di Gianfilippo Riccardo, Campanella Vincenzo, Wang Hom-Lay, Arcuri Claudio
Int J Oral Implantol (Berl). 2025 Sep 8;18(3):225-240.
To evaluate changes in implant stability quotient values of hydrophilic tissue-level implants over time, and to investigate the influence of local factors on variations in these values.
Fifty tapered, self-tapping, tissue-level implants with a hydrophilic surface were placed and monitored for 12 months. Implant stability quotient values were recorded at the time of insertion (T0) and monthly thereafter for 12 months. All implants were restored with screw-retained restorations 2 months after placement. A repeated measures analysis of variance was used to evaluate the trends in implant stability quotient values over time. A multiple linear regression model was employed to determine the impact of various factors on changes in implant stability quotient values.
Implant stability quotient values decreased from T0 to T1, although this reduction was not statistically significant (P = 0.28). The greatest decrease was observed in implants with initially high implant stability quotient values at T0 (P 0.05). Values increased significantly at each subsequent time point (P 0.001). A significant time effect was noted between immediate and delayed placement protocols (P 0.05), with immediate implants demonstrating lower initial implant stability quotient values but a steeper increase over time. Implants placed in the mandible and wider implants in molar sites showed higher implant stability quotient values compared to those placed in the maxilla and narrower implants (mandible vs maxilla P 0.05; wide molar vs regular premolar P 0.05). Insertion torque was positively correlated with implant stability quotient values at T0 (P 0.001).
The lowest implant stability quotient value was recorded 1 month after implant placement, and then increased consistently throughout the study period without reaching a plateau. Implants placed immediately showed a steeper improvement in implant stability quotient values.
CONFLICT-OF-INTEREST STATEMENT: The authors declare there are no conflicts of interest relating to this study.
评估亲水性组织水平种植体的种植体稳定性商数（ISQ）值随时间的变化，并研究局部因素对这些值变化的影响。
植入50颗具有亲水性表面的锥形、自攻型组织水平种植体，并监测12个月。在植入时（T0）及之后的12个月每月记录ISQ值。所有种植体在植入后2个月用螺丝固位修复体进行修复。采用重复测量方差分析评估ISQ值随时间的变化趋势。采用多元线性回归模型确定各种因素对ISQ值变化的影响。
从T0到T1，ISQ值下降，尽管这种下降无统计学意义（P = 0.28）。在T0时初始ISQ值较高的种植体中观察到最大降幅（P < 0.05）。在随后的每个时间点，值均显著增加（P < 0.001）。即刻和延期植入方案之间存在显著的时间效应（P < 0.05），即刻植入的种植体初始ISQ值较低，但随时间增加更陡峭。与在上颌植入的种植体和较窄的种植体相比，在下颌植入的种植体以及磨牙部位较宽的种植体显示出更高的ISQ值（下颌与上颌相比，P < 0.05；宽磨牙与常规前磨牙相比，P < 0.05）。植入扭矩与T0时的ISQ值呈正相关（P < 0.001）。
种植体植入后1个月记录到最低的ISQ值，然后在整个研究期间持续增加，未达到平台期。即刻植入的种植体ISQ值改善更显著。
作者声明与本研究不存在利益冲突。
