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Pulp chamber temperature changes and enamel surface analysis during orthodontic composite removal using 3 different
Marco Migliorati1, Anna DE Mari2, Marco Posadino1
1Dental School, Department of Orthodontics, University of Genoa, Genoa, Italy.
Minerva Dental and Oral Science
|August 1, 2022
Summary
The Arkansas bur with irrigation offers the most conservative approach for adhesive removal, minimizing pulp chamber temperature increases and enamel damage during orthodontic debonding.
Area of Science:
- Dental Materials Science
- Orthodontic Technology
- Biomaterials Engineering
Background:
- Clinicians must preserve enamel structure and tooth temperature during orthodontic debonding.
- Adhesive removal is a critical phase requiring careful technique.
Purpose of the Study:
- To investigate the in vitro effects of different burs on pulp chamber temperature and enamel wear during adhesive removal.
- To compare the efficacy of tungsten-carbide, arkansas stone, and ceramic burs.
Main Methods:
- Sixty extracted human teeth were used, with orthodontic brackets bonded and debonded.
- Intraoral scanner images evaluated enamel surface after debonding (ARI).
- Pulp chamber temperature was monitored using a thermocouple; enamel surface integrity was assessed microscopically.
Main Results:
- Irrigation and bur type significantly influenced pulp chamber temperature (P<0.0001, P=0.0133).
- The arkansas bur resulted in significantly lower temperature increases.
- Significant differences in enamel surface damage were observed (ESI and EDI, P=0.002, P=0.010).
Conclusions:
- The arkansas bur, when used with irrigation, demonstrated the most conservative results regarding temperature variation.
- Tungsten-carbide burs caused significant enamel surface damage, as indicated by ESI and EDI indexes.
