This study aimed to formulate a hybrid coating material (HC) and to modify this HC with fluoride (NaF) and stannous (SnCl₂) ions, directly or encapsulated in nano containers, testing the effects of these materials against dental erosion and erosion–abrasion. Enamel and dentin specimens were treated with the HCs, and then tested in erosion or erosion–abrasion cycling models of 5 days (n = 10 for each substrate, for each model). Deionized water was the negative control, and a fluoride varnish, the positive control. Surface loss (SL, in µm) was evaluated with an optical profilometer, and data were statistically analyzed (α = 0.05). For enamel, in erosion, the positive control and HC without additives showed significantly lower SL than the negative control (p = 0.003 and p = 0.001). In erosion–abrasion, none of the groups differed from the negative control (p > 0.05). For dentin, in erosion, the positive control, HC without additives, HC with non-encapsulated F, and HC with encapsulated F + Sn showed lower SL than the negative control (p < 0.05). In erosion–abrasion, none of the groups differed significantly from the negative control (p < 0.05). HC without additives showed a promising potential for protecting the teeth against dental erosion (with upward trend for improved protection on dentin), but not against erosion–abrasion. The presence of additives did not improve the protective effect of the HC, on both substrates.

本研究旨在配制混合涂层材料 (HC) 并用氟化物 (NaF) 和亚锡 (SnCl ₂ ) 离子直接或封装在纳米容器中对该 HC 进行改性，测试这些材料对牙齿侵蚀和侵蚀磨损的影响. 牙釉质和牙本质标本用 HCs 处理，然后在 5 天的侵蚀或侵蚀 - 磨损循环模型中进行测试（ 对于每个模型，每种基质n = 10）。去离子水为阴性对照，氟化物清漆为阳性对照。用光学轮廓仪评估表面损失 (SL, 以微米为单位), 并对数据进行统计分析 ( α  = 0.05)。对于牙釉质，在侵蚀中，阳性对照和不含添加剂的 HC 显示出显着低于阴性对照的 SL（p  = 0.003 和p  = 0.001）。在侵蚀磨损中，没有一个组与阴性对照不同（p  > 0.05）。对于牙本质，在侵蚀中，阳性对照、不含添加剂的 HC、未封装 F 的 HC 和封装 F + Sn 的 HC 显示出比阴性对照更低的 SL ( p  < 0.05)。在侵蚀磨损方面，没有一个组与阴性对照有显着差异（p  < 0.05）。不含添加剂的 HC 显示出保护牙齿免受牙齿侵蚀的潜力（随着对牙本质的保护呈上升趋势），但不能防止侵蚀磨损。添加剂的存在并没有改善 HC 对两种基材的保护作用。