Giacomelli Luca, Salerno Marco, Derchi Giacomo, Genovesi Annamaria, Paganin Pier Paolo, Covani Ugo
Tirrenian Stomatologic Institute, Lido di Camaiore, Lucca, Italy.
Int J Periodontics Restorative Dent. 2011 Sep-Oct;31(5):e51-6.
Air polishing increases the surface roughness of dental restorations, enhancing bacterial adhesion. This in vitro study was the first, to the authors' knowledge, to evaluate the effect of sodium bicarbonate and glycine powders, at different application distances (2 and 7 mm) and times (5, 10, and 30 seconds), on the surface roughness of a nanocomposite material used in restorations. Untreated slides were used as controls. Surface roughness was measured using atomic force microscopy. Air polishing with glycine powder for 5 seconds, at both application distances, determined the lowest surface damage. Even with all the limitations of any in vitro analysis, this study further supports the safety of this method of air polishing.
空气抛光会增加牙科修复体的表面粗糙度，增强细菌黏附。据作者所知，这项体外研究首次评估了碳酸氢钠和甘氨酸粉末在不同应用距离（2毫米和7毫米）和时间（5秒、10秒和30秒）下对修复体中使用的纳米复合材料表面粗糙度的影响。未处理的载玻片用作对照。使用原子力显微镜测量表面粗糙度。在两个应用距离下，用甘氨酸粉末进行5秒的空气抛光造成的表面损伤最小。尽管任何体外分析都有局限性，但这项研究进一步支持了这种空气抛光方法的安全性。
