Removal torque analysis of chemically modified hydrophilic and anodically oxidized titanium implants with constant angular velocity for early bone response in rabbit tibia

被引：0
作者：
Hyo-Jung Lee
In-Sung Yeo
Taek-Ka Kwon
机构：
[1] Seoul National University Bundang Hospital,Section of Dentistry
[2] Seoul National University,Department of Prosthodontics, School of Dentistry and Dental Research Institute
[3] Catholic University of Korea,Department of Dentistry, St. Catholic Hospital
来源：
Tissue Engineering and Regenerative Medicine | 2013年 / 10卷
关键词：
angular momentum; removal torque; osseointegration; surface properties; implant geometry;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Implant geometry and surface properties are important factors for successful osseointegration. The purpose of this study was to compare hydrophilic and hydrophobic implants with different geometries via the continuous measurement of removal torque (RT) and calculation of angular momentum for each implant. Five New Zealand white rabbits were used in the study. Each rabbit received 2 implants. A chemically modified hydrophilic implant with buttress thread was inserted into one tibia, and an anodically oxidized hydrophobic implant with V-shape threads was inserted into the other. After 1 week of healing, RT values were measured continuously in real-time. Using the time-torque curve resulting from the measurements, the maximum values were determined and angular momentums were calculated. The chemically modified hydrophilic implant exhibited significantly higher peak RT and mean torque values before the peak torque (MTBP) than the anodically oxidized hydrophobic implant (p < 0.05). The chemically modified hydrophilic implants exhibited superior early bone response compared to the anodically oxidized implants.
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页码：252 / 259
页数：7
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