Effects of CAD/CAM restorative materials and thickness on the depth of cure of various light-cured resin composite materials.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-10-17 DOI:10.4012/dmj.2024-053

Timothy Fasham, Jean-Pierre Attal, Hélène Gouze, Sarah Abdel-Gawad, Elisabeth Dursun, Philippe François

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Abstract

The study assessed the depth of cure (DOC) of different resin composites light-cured through different types of CAD/CAM materials of variable thickness. Three CAD/CAM materials (multilayer zirconia, lithium disilicate glass ceramic, composite) of three thicknesses (2-, 3-, and 4-mm) were prepared and their translucency parameter (TP) were measured. A light-curable and a dual-curable resin cement (Variolink Esthetic LC and DC) and a bulk-fill resin composite with a higher Ivocerin concentration (Tetric PowerFill) were used to mimic luting agents. DOC was assessed via Vickers microhardness testing. Increased thickness of CAD/CAM specimen was associated with decreased DOC. The chemical composition of the resin composites affected their curing performance depending on the light curing mode. Tetric PowerFill presented the greater DOC among the other resin composites. Receiver operating characteristic models of curing status appeared to provide better insight in predicting the DOC of luting agent according to TP than linear regression.

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CAD/CAM 修复材料和厚度对各种光固化树脂复合材料固化深度的影响。

该研究评估了通过不同类型、不同厚度的 CAD/CAM 材料光固化的不同树脂复合材料的固化深度（DOC）。研究人员制备了三种厚度（2 毫米、3 毫米和 4 毫米）的 CAD/CAM 材料（多层氧化锆、二硅酸锂玻璃陶瓷和复合材料），并测量了它们的半透明参数（TP）。使用光固化和双固化树脂水泥（Variolink Esthetic LC 和 DC）以及Ivocerin浓度较高的大体积填充树脂复合材料（Tetric PowerFill）来模拟洗脱剂。通过维氏硬度测试评估 DOC。CAD/CAM 试样厚度的增加与 DOC 的降低有关。树脂复合材料的化学成分会影响其固化性能，这取决于光固化模式。在其他树脂复合材料中，Tetric PowerFill 的 DOC 更大。与线性回归相比，固化状态的接收者操作特征模型似乎能更好地根据 TP 预测敷料的 DOC。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.