Optical properties of polyetherketoneketone based indirect dental restorations veneered with composite

IF 1.1 4区 工程技术 Q4 POLYMER SCIENCE Polimery Pub Date : 2022-05-13 DOI:10.14314/polimery.2022.4.1
Omar Alsadon, D. Wood, D. Patrick, Durgesh Bangalore, S. Pollington
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Abstract

In this study, the optical properties of indirect dental restorations based on poly-ether-ketone-ketone (PEKK), zirconia (YZ), and nickel-chromium (Ni-Cr) veneered with composite were compared. Based on the spectral reflectance, the CIE L*a*b* color coordinates, the color difference (ΔE), the opacity and the translucency parameter (TP) were determined using a spectrophotometer equipped with a D65 illuminant. The PEKK and Ni-Cr groups demonstrated similar CIE L*a*b* color values on white and black backgrounds. However, the zirconia group on a white backgrounds showed a slight shift in values towards red-yellow shades. The highest recorded ∆E values were 1.3 and 1.61 between PEKK and YZ groups, and Ni-Cr and YZ groups respectively. The opacity and translucency (TP) parameters were consistent with the spectral reflectance data, with the Ni-Cr and PEKK groups being completely opaque (100% and 0 TP). It has been shown that the use of the same indirect light-cured composite veneer with different substructure materials has no clinical effect on the esthetics of the final restoration.
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复合材料贴面聚醚酮酮间接修复体的光学性能
本研究比较了聚醚酮酮(PEKK)、氧化锆(YZ)和镍铬(Ni-Cr)复合贴面间接修复体的光学性能。基于光谱反射率,使用配备D65光源的分光光度计确定CIE L*a*b*色坐标、色差(ΔE)、不透明度和半透明性参数(TP)。PEKK和Ni-Cr组在白色和黑色背景上表现出相似的CIE L*a*b*颜色值。然而,白色背景上的氧化锆组显示出向红黄色阴影的值略有变化。PEKK和YZ组以及Ni-Cr和YZ两组之间记录的最高∆E值分别为1.3和1.61。不透明性和半透明性(TP)参数与光谱反射率数据一致,Ni-Cr和PEKK组完全不透明(100%和0TP)。研究表明,使用相同的间接光固化复合贴面和不同的底层结构材料对最终修复体的美学没有临床影响。
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来源期刊
Polimery
Polimery Materials Science-Polymers and Plastics
CiteScore
2.90
自引率
6.20%
发文量
35
审稿时长
1 months
期刊介绍: The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.
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