Associate Professor, School of Dentistry, China Medical University, Taichung, Taiwan.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2013 Nov;116(5):e356-61. doi: 10.1016/j.oooo.2012.01.037. Epub 2012 Aug 24.
This study evaluated the correlation between the initial stability of a dental implant, quantified as the implant stability quotient (ISQ), and the bone-implant contact percentage ( BIC%).
Dental implants were inserted into specimens comprising an artificial cortical shell representing cortical bone and foam bone representing cancellous bone with 4 elastic moduli. Each specimen with an implant was subjected to microcomputed tomography (micro-CT) scanning, from which the 2D and 3D BIC% values were calculated. The values of the Spearman correlation coefficient (r) were calculated between the ISQ and the 2D and 3D BIC% values.
Increasing the elasticity of the specimen enhanced the ISQ. There was statistically significant correlation between the ISQ and 3D BIC% values (r = 0.85, P < .0001). However, the correlation between ISQ and 2D BIC% values was not statistically significance (r = 0.42, P = .062).
The initial implant stability was strongly positively correlated with the 3D BIC%.
本研究评估了种植体初始稳定性（以种植体稳定系数[ISQ]表示）与骨-种植体接触百分比（BIC%）之间的相关性。
将种植体插入由人工皮质壳代表皮质骨和泡沫骨代表松质骨组成的标本中，具有 4 种弹性模量。每个带有种植体的标本均进行微计算机断层扫描（micro-CT）扫描，从二维和三维 BIC%值。计算 ISQ 与 2D 和 3D BIC%值之间的 Spearman 相关系数（r）值。
增加标本的弹性会提高 ISQ。ISQ 与 3D BIC%值之间存在统计学显著相关性（r = 0.85，P <.0001）。然而，ISQ 与 2D BIC%值之间的相关性没有统计学意义（r = 0.42，P =.062）。
初始种植体稳定性与 3D BIC%呈强正相关。
