Pereira Pâmela-Letícia, Pereira Renata, Silva Bruna-Guerra, Lins Rodrigo-Barros-Esteves, Lima Débora-Alves-Nunes-Leite, Aguiar Flávio-Henrique-Baggio
Undergraduate student, Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira, 901, Zip code 13.414-903, Piracicaba, SP, Brazil.
PhD student, Department of Restorative Dentistry, Division of Operative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Zip code 13.414-903, Piracicaba, SP, Brazil.
J Clin Exp Dent. 2021 Aug 1;13(8):e795-e801. doi: 10.4317/jced.58311. eCollection 2021 Aug.
Wetting agents facilitate the composites handling, acting as a lubricant and decreasing their stickness to spatula. The effects of these materials on the properties of composites are not completely clear. This study aimed to evaluate Gloss, Color, Roughness and Microhardness of a composite (Filtek Z250 XT, 3M Oral Care) covered by a wetting agent (Modeling Resin, Bisco), submitted to brushing and staining cycles with red wine.
Cylinder-shaped samples (8 mm ø x 2 mm height) were divided into 4 groups, according to application of wetting agent and brushing cycles (n = 20). The composite was placed in the orifice of a polytetrafluoroethylene mold, received wetting agent coverage, and was light-cured. Gloss, Color, Roughness and Microhardness were evaluated in two times: after samples confection and after brushing + staining cycles. Data were submitted to one-way ANOVA and Tukey's test (ΔL, Δa, Δb and ΔE) and two-way repeated measures ANOVA and Bonferronis's test (gloss, roughness and microhardness).
In general, the composite showed higher gloss values when added by the wetting agent. No statistical differences were observed regarding colors' groups. Roughness increased after brushing cycles, regardless of wetting agent application. The only group which presented decreased Microhardness after cycles was the group without wetting agent, only submitted to staining with red wine.
The application of wetting agent on the composite did not interfere negatively with its properties of Gloss, Color, Roughness and Microhardness. Resin composite, wetting agent, surface properties, gloss, color, esthetic dentistry.
湿润剂有助于复合材料的操作，起到润滑剂的作用并降低其对刮勺的粘性。这些材料对复合材料性能的影响尚不完全清楚。本研究旨在评估一种复合材料（Filtek Z250 XT，3M口腔护理产品）在覆盖湿润剂（造型树脂，Bisco）后，经过红酒刷牙和染色循环后的光泽度、颜色、粗糙度和显微硬度。
根据湿润剂的应用和刷牙循环情况，将圆柱形样本（直径8毫米×高2毫米）分为4组（n = 20）。将复合材料放置在聚四氟乙烯模具的孔口中，覆盖湿润剂，然后进行光固化。在两个时间点评估光泽度、颜色、粗糙度和显微硬度：样本制作后以及刷牙 + 染色循环后。数据进行单因素方差分析和Tukey检验（ΔL、Δa、Δb和ΔE）以及双向重复测量方差分析和Bonferroni检验（光泽度、粗糙度和显微硬度）。
总体而言，添加湿润剂后复合材料显示出更高的光泽度值。在颜色组方面未观察到统计学差异。无论是否应用湿润剂，刷牙循环后粗糙度都会增加。循环后唯一显微硬度降低的组是未添加湿润剂、仅用红酒染色的组。
在复合材料上应用湿润剂不会对其光泽度、颜色、粗糙度和显微硬度产生负面影响。树脂复合材料、湿润剂、表面性能、光泽度、颜色、美容牙科。
