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Effects of Micro-Arc oxidation treatment on the osseointegration of microscrews in bone tissue
Yawen Dai1, Yufei Ren2, Wantian Xu1
1Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Research Institute of Stomatology, Nanjing University Nanjing, Jiangsu, China.
Objective:
This study aimed to examine the surface morphology and physical properties of micro-screws following micro-arc oxidation surface treatment, and to verify the findings using an animal experimental model.
Methods:
A comparative analysis was conducted between micro-arc oxidized micro-screws (Group B) and conventional micro-screws (Group A). Suitable animal subjects were selected in accordance with experimental criteria. All experimental measured data were subjected to statistical analysis.
Results:
1) The threaded portion of micro-screws in Group B exhibited better wettability and roughness compared to those in Group A, along with good coating adhesion. 2) Both the new bone mass and bone combination rate for Group B micro-screws showed an upward trend.
Conclusion:
The study demonstrated that micro-arc oxidation treatment enhanced the surface wettability and roughness of the micro-screws and significantly increased bone formation, suggesting improved stability following treatment.
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