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Quintessence Int 41 (2010), No. 7-8     4. June 2010
Quintessence Int 41 (2010), No. 7-8  (04.06.2010)

Online Article, Page 611, PubMed:20614037


Online Article: Influence of air-polishing devices and abrasives on root dentin-An in vitro confocal laser scanning microscope study
Pelka, Matthias / Trautmann, Sandra / Petschelt, Anselm / Lohbauer, Ullrich
Objective: To assess the influence of air-polishing devices and various abrasives on flat root surfaces.
Method and Materials: A total of 168 natural teeth were embedded in polyurethane resin and treated with airborne-particle abrasion using two air-polishing devices (Prophyflex 3, KaVo; EMS Handy, EMS), four abrasives (Airflow powder, EMS; Cleaning powder, KaVo; ClinPro powder, 3M ESPE; and ProphyPearls, KaVo), and three treatment times (5, 10, and 20 seconds). Defects were quantified using a confocal laser scanning microscope.
Results: The Prophyflex device clearly generated deeper substance defects compared to the EMS device, regardless of abrasive used (Kruskal-Wallis, P = .004). ProphyPearls abrasive caused the deepest defects with both devices. ClinPro powder produced the least amount of defects. Defect depths increased significantly for all abrasives with increasing treatment times (Kruskal-Wallis, P = .01), and all abrasives except ClinPro powder caused substantial volume loss.
Conclusion: The abrasiveness of air-polishing powders differs depending on the polishing device used. ProphyPearls caused more substance loss than ClinPro powder.

Keywords: airborne-particle abrasion, glycine powder, NaHCO3, ProphyPearls, root defects, root dentin