Related Experiment Videos
Selective caries removal with air abrasion
S Horiguchi1, T Yamada, S Inokoshi
1Tokyo Medical and Dental University, Faculty of Dentistry, Department of Operative Dentistry, Japan.
Operative Dentistry
|December 24, 1998
Summary
Selective caries removal using air-abrasion is challenging with hard particles. However, polycarbonate resin powders show promise for selectively removing carious dentin without damaging healthy tooth structure.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Conservative Dentistry
Background:
- Minimally invasive dentistry aims to preserve tooth structure.
- Air-abrasion offers a precise method for dental tissue removal.
- Developing selective caries removal techniques is crucial for effective treatment.
Purpose of the Study:
- To evaluate the efficacy of air-abrasive techniques for selective caries removal.
- To assess the impact of different abrasive materials and parameters on tooth structure.
- To identify potential materials for selective carious dentin removal.
Main Methods:
- Tested alumina powders, glass beads, crushed glass, and polycarbonate resin powders.
- Applied abrasives to intact human enamel, dentin, and caries-model dentin.
- Examined effects of particle size and air pressure on abraded depths.
Main Results:
- Alumina and glass beads showed increased abrasion with higher particle size and air pressure.
- Hard particles (alumina, glass beads, crushed glass) struggled with selective caries removal.
- Polycarbonate resin powders selectively abraded caries-model dentin without affecting intact enamel/dentin.
Conclusions:
- Selective caries removal with hard particle air-abrasion is difficult.
- Polycarbonate resin powders demonstrate potential for selective carious dentin removal.
- This technique offers a viable option for conservative caries treatment.