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The effects of bracket removal on enamel
Farzin Heravi1, Roozbeh Rashed, Leila Raziee
1Department of Orthodontics and Dental Research Center, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran. heravif@mums.ac.ir
Australian Orthodontic Journal
|December 31, 2008
Summary
Debonding orthodontic brackets can cause enamel cracks, regardless of the removal method used. Further research is needed to find safer bracket removal techniques to minimize enamel damage.
Area of Science:
- Dental Materials Science
- Orthodontic Technology
- Clinical Dentistry
Background:
- Orthodontic bracket debonding can lead to enamel cracks.
- These cracks compromise enamel integrity and aesthetics.
- Minimizing enamel damage during debonding is crucial.
Purpose of the Study:
- To compare enamel crack formation and adhesive remnant scores (ARI) after debonding metal orthodontic brackets.
- Three different debonding methods were evaluated.
- The study assessed the number, length, and direction of enamel cracks.
Main Methods:
- 75 extracted premolars were bonded with metal brackets and a self-curing adhesive.
- Teeth were divided into three groups for bracket removal using a side-cutter, single-blade, or two-blade remover.
- Enamel cracks (pre- and post-debonding) and ARI scores were analyzed.
Main Results:
- All debonding methods increased the number and length of enamel cracks.
- No statistically significant differences in enamel damage were found between the three methods.
- Debonding method did not influence ARI scores or crack propagation direction.
Conclusions:
- Current bracket debonding methods cause significant enamel damage.
- Caution is advised when using these techniques.
- Development of less damaging debonding methods is recommended.
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