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Updated: Jun 17, 2026

An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
[Maximum resistance strength of the bone-bonding screw orthodontic anchorage]
Xian-ju Xie1, Yu-xing Bai, Ying Lü
1Department of Orthodontics, Capital Medical University School of Stomatology, Beijing 100050, China.
Objective:
To investigate the maximum resistance strength of a new orthodontic anchorage system named bone-bonding screw.
Methods:
Thirty-six self-designed two-section bone-bonding screws were bonded to the surface of tibia in 12 rabbits with N-2-butyl cyanoacrylate. The maximum resistance strength of the screws was tested immediately, 2 weeks, 4 weeks and 8 weeks after bonding, respectively.
Results:
The average maximum resistance strengths of the bone-bonding screws immediately, 2 weeks, 4 weeks and 8 weeks after bonding were 11.55 (8.96, 12.73), 6.04 (1.88, 10.57), 2.30 (0, 3.24), and 49.85 (20.70, 66.01) N, respectively. The difference between each group was statistically significant (P < 0.05). The failure rate of the bone-bonding screws was 17% (6/36).
Conclusions:
The maximum resistance strength of the bone-bonding screw could suffice for orthodontics.
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