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Updated: Jan 12, 2026
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An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
15.9K
Cross-sectional study on the correlation between trabecular bone microstructures and the accuracy of implant
Yingying Zhang1, Jia Chen1, Qian Han1
1Department of Stomatology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China.
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
|November 7, 2025
Summary
Higher bone volume fraction improves angular accuracy in dental implant placement guided by dynamic navigation. Other bone microstructure factors do not significantly impact precision.
Area of Science:
- Oral surgery
- Biomaterials science
- Medical imaging
Background:
- Accurate dental implant placement is crucial for successful osseointegration and long-term function.
- Dynamic navigation systems offer enhanced precision in implant surgery.
- The influence of trabecular bone microstructure on navigation accuracy requires further investigation.
Purpose of the Study:
- To evaluate how trabecular bone microstructure affects the accuracy of dental implant placement using dynamic navigation.
- To identify specific microstructural parameters that correlate with implant positioning precision.
Main Methods:
- Thirty-seven implants were placed in 35 patients utilizing dynamic navigation.
- Bone biopsies were analyzed to quantify bone volume fraction (BV/TV), trabecular thickness (Tb.Th), number (Tb.N), and separation (Tb.Sp).
- Implant deviations (apical, angular, coronal) were measured using navigation software.
Main Results:
- Bone volume fraction (BV/TV) showed a significant negative correlation with apical and angular deviations (P < .05).
- No significant correlation was found between BV/TV and coronal deviation (P > .05).
- Other microstructural parameters (Tb.Th, Tb.N, Tb.Sp) did not significantly correlate with implant positioning accuracy (P > .05).
- Multivariate analysis identified BV/TV as the sole significant predictor of angular deviation (β = -0.079, P < .05).
Conclusions:
- Higher bone volume fraction is associated with improved angular accuracy in dynamic navigation-guided dental implant placement.
- Trabecular thickness, number, and separation do not significantly influence the precision of implant positioning with this technology.
- BV/TV is a key determinant of angular accuracy, suggesting its importance in pre-surgical assessment for navigated implantology.
