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Factors Related to Bracket Bond Failure during Orthodontic Treatment: A Single-Centre Single-Operator Study.
Olivier Quinty1, Gregory S Antonarakis1, Stavros Kiliaridis1,2
1Division of Orthodontics, University Clinics of Dental Medicine, University of Geneva, 1205 Geneva, Switzerland.
Dentistry Journal
|October 25, 2024
Summary
Orthodontic bracket survival is influenced by patient factors and tooth location. Male patients, poor oral hygiene, and increased overjet/overbite correlate with higher bracket failure rates, impacting treatment outcomes.
Area of Science:
- Dentistry
- Orthodontics
- Biomaterials
Background:
- Orthodontic treatment relies on bracket adhesion to tooth surfaces.
- Bracket debonding can lead to prolonged treatment times and increased costs.
- Understanding factors influencing bracket survival is crucial for successful orthodontic outcomes.
Purpose of the Study:
- To identify patient-specific and bracket location-specific predictors of bracket bond failure during orthodontic treatment.
- To analyze the association between demographic, clinical, and cephalometric variables and bracket survival rates.
Main Methods:
- Retrospective cohort study of 197 patients undergoing fixed appliance orthodontic treatment.
- Stainless steel, non-self-ligating brackets were used.
- Cox regression and Kaplan-Meier tests analyzed bracket bond failure predictors.
Main Results:
- Overall bracket failure rate was 4.4%.
- Higher failure rates observed on posterior teeth and the right side of the arch.
- Male patients, poor oral hygiene, increased overjet, and increased overbite were associated with increased bracket failure.
Conclusions:
- Patient sex, oral hygiene status, and specific dentofacial characteristics (overjet, overbite) are significant predictors of bracket survival in orthodontic treatment.
- Bracket location also influences failure rates, with posterior teeth being more susceptible.
- These findings can inform clinical practice to minimize bracket failures and optimize treatment efficiency.
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