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A simple way to intrude overerupted upper second molars with miniscrews
Yang Cao1, Chufeng Liu, Chunxian Wang
1Associate Professor, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.
Summary
This study introduces a novel method for intruding overerupted upper second molars using partial fixed appliances and miniscrews for enhanced anchorage. The technique proved effective, achieving significant molar intrusion without adverse effects, offering a viable solution for complex orthodontic cases.
Area of Science:
- Orthodontics
- Dental Implantology
Background:
- Intruding overerupted maxillary molars presents challenges, particularly in the upper second molar region due to low bone density.
- Skeletal anchorage offers potential solutions, but specific techniques for difficult cases are needed.
Observation:
- A novel treatment approach utilizing partial fixed edgewise appliances and miniscrews was employed to intrude overerupted upper second molars.
- Miniscrews were strategically placed to reinforce anchorage of the adjacent upper first molar.
- Nickel-titanium (Ni-Ti) wire generated the necessary intrusive force.
Findings:
- The clinical results demonstrated a significant intrusive effect on the overerupted upper second molars.
- No instances of root resorption or periodontal complications were observed during the treatment.
- The combined approach proved effective even when direct miniscrew placement next to the second molar was not feasible.
Implications:
- This method provides a simple and effective treatment option for intruding overerupted upper second molars.
- It offers a valuable alternative for cases with limited bone density or anatomical constraints.
- The findings support the use of partial fixed appliances with miniscrews as a reliable orthodontic strategy.