Németh Kinga Dorottya, Haluszka Dóra, Seress László, Lovász Bálint Viktor, Szalma József, Lempel Edina
Department of Restorative Dentistry and Periodontology, University of Pécs Medical School, Dischka Gy. Street 5, 7621 Pécs, Hungary.
Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó Street 37-47, 1094 Budapest, Hungary.
Polymers (Basel). 2022 Apr 19;14(9):1643. doi: 10.3390/polym14091643.
Air-abrasion is a popular prophylactic procedure to maintain oral hygiene. However, depending on the applied air-abrasive powder, it can damage the surface of the tooth and restorations, making it susceptible to plaque accumulation. The purpose of this study was to investigate the effect of 5 s and 10 s air-abrasion of calcium carbonate on surface roughness (Ra) of enamel, nanofill, and microhybrid resin-composites and the effect of post-polishing with two-step rubber- (RP) or one-step brush polisher (BP) to re-establish the surface smoothness. Surface topography was visualized by scanning-electron-microscopy. The quantitative measurement of the Ra was carried out with atomic-force-microscopy. Air-abrasion for 10 s decreased the Ra of enamel as a result of abrasion of the natural surface texture. Post-polishing with RP after 10 s air-abrasion did not change the Ra or BP; however, Ra was increased significantly by scratching the surface. Air-abrasion increased the Ra of resin composites significantly, irrespective of the application time. While RP provided a similarly smooth surface to the control in the case of microhybrid resin composite, BP increased the Ra significantly. The Ra for the control group of the nanofill-resin composite was initially high, which was further increased by air-abrasion. RP and BP re-established the initial Ra with deeper and shallower scratches after BP. Both the material and treatment type showed a large effect on Ra.
空气喷砂是一种常用的维护口腔卫生的预防性操作。然而，根据所使用的空气喷砂粉末不同，它可能会损坏牙齿表面和修复体，使其易形成牙菌斑堆积。本研究的目的是调查碳酸钙空气喷砂5秒和10秒对牙釉质、纳米填料和微混合树脂复合材料表面粗糙度（Ra）的影响，以及用两步橡胶抛光器（RP）或一步刷式抛光器（BP）进行抛光后对恢复表面光滑度的影响。通过扫描电子显微镜观察表面形貌。用原子力显微镜对Ra进行定量测量。由于天然表面纹理被磨损，10秒的空气喷砂使牙釉质的Ra降低。10秒空气喷砂后用RP抛光不会改变Ra或BP；然而，表面划痕会使Ra显著增加。无论喷砂时间长短，空气喷砂都会显著增加树脂复合材料的Ra。对于微混合树脂复合材料，RP能使其表面达到与对照组相似的光滑度，而BP会显著增加Ra。纳米填料树脂复合材料对照组的Ra最初较高，空气喷砂后进一步增加。RP和BP在BP后通过不同深度的划痕恢复了初始的Ra。材料和处理类型对Ra都有很大影响。
