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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
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High Insertion Torque and Peri-Implant Bone Loss: Is There a Relationship?
Mohsen Bidgoli1, Sara Soheilifar1, Javad Faradmal2
1Department of Periodontics, Faculty of Dentistry, Hamadan University of Medical Science, Hamadan, Iran.
Journal of Long-Term Effects of Medical Implants
|January 13, 2016
Summary
Higher implant insertion torque (up to 70 N/cm) does not significantly increase crestal bone resorption. This finding is crucial for optimizing dental implant stability and osseointegration without compromising bone health.
Area of Science:
- Dental Implantology
- Biomaterials Science
Background:
- Primary stability is crucial for successful osseointegration of dental implants.
- Excessive insertion torque may negatively impact peri-implant bone, potentially leading to resorption.
Purpose of the Study:
- To evaluate the effect of varying insertion torque levels on the crestal bone level around bone-level dental implants.
Main Methods:
- Retrospective cohort study analyzing periapical radiographs of 136 bone-level implants.
- Implants were categorized into high (45-70 N/cm) and lower (20-30 N/cm) insertion torque groups.
- Crestal bone loss was measured immediately post-insertion and after healing abutment placement.
Main Results:
- Mean bone resorption was 0.33 mm for high torque and 0.4 mm for lower torque implants.
- The difference in bone resorption between the high and lower torque groups was statistically insignificant (p = 0.88).
Conclusions:
- High insertion torques, up to 70 N/cm, do not significantly increase crestal bone resorption around dental implants.
- These findings suggest that higher insertion torques can be safely utilized to enhance primary stability without compromising bone levels.

