Operative Dentistry Division, Department of Restorative Dentistry, State University of Campinas, Piracicaba Dental School, 901 Limeira Avenue, Piracicaba, São Paulo, 13414-903, Brazil.
Department of Restorative Dentistry, University of São Paulo, Ribeirão Preto, São Paulo, Brazil.
Clin Oral Investig. 2022 Aug;26(8):5189-5203. doi: 10.1007/s00784-022-04487-w. Epub 2022 Apr 20.
Investigate the effect of erosive challenge with hydrochloric acid (HCl) on the surface of five different restorative materials.
Ten plates of five restorative materials (Admira Fusion, Activa BioActive-Restorative, Charisma, Equia Forte HT Fil/EF, Filtek Universal Restorative/FU) were obtained. Half of the plate surfaces was covered with an adhesive tape, creating a control area, and the other side was submitted to the HCl (0.06 M HCl; pH 1.2; at 37 °C; for 30 h). Plates with control and HCl-treated areas were analyzed regarding the surface roughness (Sa), roughness profile (Rv), surface loss (SL), microhardness (MI), and gloss (GL) (n = 10). Surface morphology was analyzed by SEM and chemical elements were identified by EDX (n = 5). Data were evaluated by ANOVA and Tukey's test (α = 0.05).
Most materials were not affected by HCl. FU showed the lowest Sa and Rv, and the highest GL after HCl. On the other hand, EF presented the highest Sa, Rv, and SL, and the lowest GL. The MI of materials was not changed after HCl. Topographical and chemical alterations were observed after HCl only for EF.
The composites showed minor surface changes after HCl, which was not observed for the glass ionomer cement (EF). FU presented the best performance regarding the parameters evaluated.
The effects of erosive challenge with HCl on composites were minimal, while the glass ionomer cements might not be indicated as restorative material for patients with gastroesophageal reflux disease.
研究盐酸（HCl）侵蚀性挑战对五种不同修复材料表面的影响。
获得了五种修复材料（Admira Fusion、Activa BioActive-Restorative、Charisma、Equia Forte HT Fil/EF、Filtek Universal Restorative/FU）的十个板。将一半的板表面用胶带覆盖，形成对照区域，而另一侧则暴露于 HCl（0.06 M HCl；pH 值 1.2；37°C；30 h）。对具有对照区和 HCl 处理区的板进行表面粗糙度（Sa）、粗糙度轮廓（Rv）、表面损失（SL）、显微硬度（MI）和光泽度（GL）分析（n = 10）。通过 SEM 分析表面形态，通过 EDX 鉴定化学元素（n = 5）。采用方差分析和 Tukey 检验（α = 0.05）对数据进行评估。
大多数材料不受 HCl 影响。FU 在 HCl 后表现出最低的 Sa 和 Rv，以及最高的 GL。另一方面，EF 表现出最高的 Sa、Rv 和 SL，以及最低的 GL。HCl 后材料的 MI 没有变化。仅在 EF 观察到 HCl 后出现形貌和化学变化。
HCl 后复合材料表面变化较小，而玻璃离子水门汀（EF）则无此现象。在评估的参数方面，FU 表现出最佳性能。
HCl 侵蚀性挑战对复合材料的影响很小，而玻璃离子水门汀可能不适用于患有胃食管反流病的患者作为修复材料。
