增稠剂和矿物质添加对漂白凝胶致牙釉质脱矿的影响。
Influence of Thickener and Mineral Supplementation of Bleaching Gels on Enamel Demineralization.
作者信息
Andrade Adrielle Caroline Moreira, Comba Allegra, Scotti Nicola, Sebar Leila Es, Torres Carlos Rocha Gomes
机构信息
Department of Restorative Dentistry, Institute of Science and Technology, Sao Paulo State University - UNESP, Sao Jose dos Campos, Brazil.
Department of Surgical Sciences, University of Turin, Dental School, Endodontics and Operative Dentistry, Turin, Italy.
出版信息
J Esthet Restor Dent. 2025 Sep;37(9):2144-2153. doi: 10.1111/jerd.13495. Epub 2025 Jun 5.
OBJECTIVE
This study evaluated the effect of the type of thickener and mineral supplementation of bleaching gels on enamel demineralization.
MATERIALS AND METHODS
Enamel specimens were divided into five groups according to the type of thickener: CA-Carbopol, AE-Aerosil 200, PO-Poloxamer 407, GG-Guar gum, and HEC-Hydroxyethyl cellulose. Each group was subdivided into three subgroups according to the level of mineral supplementation: none, saturation concentration, and maximum addition. The microhardness (KHN), surface roughness (Ra), color change (ΔE00), and mineral content (DD) were measured before and after the treatment, and the changes were calculated. The data was analyzed with two-way ANOVA and Tukey's test.
RESULTS
ANOVA showed significant differences among the groups (p < 0.05). The results of the Tukey test were: %KHN-HEC>GG>CA>PO>AE. %Ra-CA>HEC>PO>GG>AE. DE00-AE>GG>PO>HEC. %DD-HEC>PO>GG>CA>AE. The supplementation reduced the means of %KHN, %Ra, and %DD, without affecting the DE00. The effect of the supplementation level was not statistically significant.
CONCLUSION
It was concluded that the type of thickener and the use of mineral supplementation significantly influenced the deleterious effects on the enamel.
目的
本研究评估增稠剂类型及漂白凝胶中矿物质添加对牙釉质脱矿的影响。
材料与方法
根据增稠剂类型将牙釉质标本分为五组：CA-卡波姆、AE-气相二氧化硅200、PO-泊洛沙姆407、GG-瓜尔胶、HEC-羟乙基纤维素。根据矿物质添加水平将每组再细分为三个亚组：无添加、饱和浓度、最大添加量。在处理前后测量显微硬度（KHN）、表面粗糙度（Ra）、颜色变化（ΔE00）和矿物质含量（DD），并计算变化量。数据采用双向方差分析和Tukey检验进行分析。
结果
方差分析显示各组间存在显著差异（p < 0.05）。Tukey检验结果为：%KHN-HEC>GG>CA>PO>AE。%Ra-CA>HEC>PO>GG>AE。DE00-AE>GG>PO>HEC。%DD-HEC>PO>GG>CA>AE。添加矿物质降低了%KHN、%Ra和%DD的平均值，但不影响DE00。添加水平的影响无统计学意义。
结论
得出结论，增稠剂类型和矿物质添加的使用对牙釉质的有害影响有显著影响。
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