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Tooth color change due to different etching and debonding procedures
The Angle Orthodontist
|August 7, 2018
Summary
Orthodontic treatment causes unacceptable tooth color changes. Self-etch primers with 12-bladed burs showed fewer changes than 24-bladed burs. Polishing helps but doesn't eliminate color alteration.
Area of Science:
- Dentistry
- Orthodontics
- Dental Materials
Background:
- Tooth color changes can occur during orthodontic treatment.
- Enamel preparation and adhesive removal techniques may influence these changes.
- Understanding these effects is crucial for patient satisfaction.
Purpose of the Study:
- To compare tooth color changes after orthodontic treatment using different enamel preparation and adhesive removal methods.
- To evaluate the impact of tungsten carbide burs and polishing discs on tooth color.
- To assess the effectiveness of different techniques in minimizing undesirable color alterations.
Main Methods:
- Fifty-nine participants were divided into four groups based on enamel preparation (phosphoric acid vs. self-etch primer) and adhesive removal (12- vs. 24-bladed tungsten carbide burs).
- Teeth were polished using Sof-Lex XT discs.
- Tooth color (L*, a*, b* values) was measured before treatment, after bur cleaning, and after polishing.
Main Results:
- Significant tooth color changes (L*, a*, b*) were observed in most groups.
- Self-etch primer groups showed different color alterations from pre- to post-bur cleaning.
- Post-polishing color changes were not significantly different between groups.
Conclusions:
- Self-etch bonding groups experienced less color change with 12-bladed burs compared to 24-bladed burs.
- Orthodontic treatment leads to clinically unacceptable tooth color alterations irrespective of preparation and cleanup methods.
- Polishing mitigated bur-induced color changes but not the overall treatment effect on tooth color.
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