Evaluation of stability of temporary anchorage devices for orthodontic treatment
A clinical study
Keywords:
Anchorage procedures, anchorage techniques, orthodontic anchorage procedures, miniscrews, tem¬porary anchorage deviceAbstract
Aim: The purpose of the present research was to assess the stability of temporary anchorage devices used in orthodontic treatment. Methodology: Freshly ovine mandibles were cut in blocks. Twenty-seven miniscrews (diameter 1.6 × 8 mm; G2, Dual Top Anchor System, Jeil Medical, Seoul, Korea) were inserted in the blocks and divided in 2 experimental groups: single miniscrew and the innovated design “Seifi Twin Screw (STS)”. Primary stability was evaluated by Periotest “M”® device. Results: Independent t-test showed a significant difference between 2 experimental groups in periotest evaluation (p< 0.05). STS demonstrated higher primary stability due to its mechanical configuration and design. Conclusion: The STS provides higher primary stability and was found to be effective in increased success rate of miniscrew systems from the standpoint of primary stability.
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