Silva Natyla Ml, Costa Victor G, Gonçalves Letícia M, Gomes Isabella A, Paschoal Marco Aurélio B
J Clin Pediatr Dent. 2020 Sep 1;44(5):342-347. doi: 10.17796/1053-4625-44.5.8.
The present study investigated the erosive potential of children's mouthrinses on glass ionomer cement (GIC) samples after simulated toothbrushing.
Forty round-shaped samples of GIC were divided into 3 groups: G1- cetylpyridinium chloride, G2- xylitol and triclosan and G3-Malva sylvestris and xylitol and G4-distilled water as a control group. Prior to the main tests, the samples were submitted to the surface roughness measurement (Ra) and weight analysis (W). Afterward, they were brushed twice day (2× / day) for 15 days and immersed in mouthrinses after the last daily brushing. The final surface roughness (R2) and weight (W2) were determined after completing the tooth brushing-mouth rinsing cycles and the real increase in roughness (ΔRa) and real weight loss (ΔW) were calculated. In addition, stereoscopic images taken at 30× magnification. The data was analyzed by one-way ANOVA and Tukey-test post hoc tests for intergroup comparison and the T-test for dependent samples (α = 0.05).
Only group G2 showed increased in roughness ΔRa (1.53 ± 0.94) whereas ΔW values were not significant. However, evident cracks and voids were verified for all tested children's rinses.
Thus, children's mouthrinse containing xylitol / triclosan increased the GIC roughness, especially when associated with brushing.
本研究调查了儿童漱口水在模拟刷牙后对玻璃离子水门汀（GIC）样本的侵蚀潜力。
40个圆形GIC样本分为3组：G1-氯化十六烷基吡啶，G2-木糖醇和三氯生，G3-锦葵和木糖醇，G4-蒸馏水作为对照组。在主要测试之前，对样本进行表面粗糙度测量（Ra）和重量分析（W）。之后，每天刷牙两次（每天2次），持续15天，并在每天最后一次刷牙后浸泡在漱口水。在完成刷牙-漱口周期后测定最终表面粗糙度（R2）和重量（W2），并计算粗糙度的实际增加量（ΔRa）和实际重量损失（ΔW）。此外，以30倍放大倍数拍摄立体图像。数据通过单因素方差分析和Tukey事后检验进行组间比较分析，以及相关样本的T检验（α = 0.05）。
只有G2组的粗糙度增加了ΔRa（1.53±0.94），而ΔW值不显著。然而，所有测试的儿童漱口水均出现明显的裂缝和空隙。
因此，含有木糖醇/三氯生的儿童漱口水会增加GIC的粗糙度，尤其是在与刷牙同时进行时。
