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Updated: Mar 3, 2026
An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
In vitro evaluation of a self-positioning individualized titanium mesh for improved accuracy in guided bone
Jiayuan Zhang1,2, Yufan Chen3, Xingru Tao1
1Second Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong university School of Medicine, College of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
Introduction:
Adequate bone volume and contour are essential for successful implant placement. This study evaluated the accuracy of a novel self-positioning three-dimensional printed individualized titanium mesh (3D-PITM) in guided bone regeneration (GBR).
Methods:
Ten identical maxillary phantoms with standardized defects were divided into an experimental self-positioning 3D-PITM group and a conventional 3D-PITM group. Pre- and postoperative CBCT scans were obtained for 3D reconstruction and superimposition. Deviations in augmented contours, screw placement, volumetric accuracy, and 2D cross-sectional augmentation were analyzed.
Results:
The self-positioning group showed significantly reduced deviation in augmentation contours (0.82 ± 0.07 mm vs. 1.02 ± 0.13 mm, P = 0.003), improved screw placement accuracy (0.10 ± 0.13 mm vs. 0.65 ± 0.32 mm, P = 0.026), and lower volumetric discrepancies. Two-dimensional evaluation confirmed greater vertical and horizontal accuracy in bone augmentation (P = 0.021, P = 0.018).
Conclusion:
The self-positioning 3D-PITM achieved more accurate installation and predictable bone augmentation in vitro, suggesting potential clinical advantages for implant-supported rehabilitation.
