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Color difference threshold determination for acrylic denture base resins
Ren, Jiabao1,2; Lin, Hong1,2; Huang, Qingmei3; Liang, Qifan4; Zheng, Gang1,2
关键词Acrylic denture base resin perceptibility threshold acceptability threshold spectrophotometer CIEDE2000
刊名BIO-MEDICAL MATERIALS AND ENGINEERING
2015
DOI10.3233/BME-151287
suppl.1页:S35-S43
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Engineering, Biomedical ; Materials Science, Biomaterials
研究领域[WOS]Engineering ; Materials Science
关键词[WOS]ACCEPTABILITY THRESHOLDS ; PERCEPTIBILITY ; TEETH ; COMPOSITES
英文摘要

This study aimed to set evaluation indicators, i.e., perceptibility and acceptability color difference thresholds, of color stability for acrylic denture base resins for a spectrophotometric assessing method, which offered an alternative to the visual method described in ISO 20795-1:2013. A total of 291 disk specimens 50 +/- 1 mm in diameter and 0.5 +/- 0.1 mm thick were prepared (ISO 20795-1:2013) and processed through radiation tests in an accelerated aging chamber (ISO 7491:2000) for increasing times of 0 to 42 hours. Color alterations were measured with a spectrophotometer and evaluated using the CIE L*a*b* colorimetric system. Color differences were calculated through the CIEDE2000 color difference formula. Thirty-two dental professionals without color vision deficiencies completed perceptibility and acceptability assessments under controlled conditions in vitro. An S-curve fitting procedure was used to analyze the 50:50% perceptibility and acceptability thresholds. Furthermore, perceptibility and acceptability against the differences of the three color attributes, lightness, chroma, and hue, were also investigated. According to the S-curve fitting procedure, the 50:50% perceptibility threshold was 1.71 Delta E-00 (r(2)=0.88) and the 50:50% acceptability threshold was 4.00 Delta E-00 (r(2)=0.89). Within the limitations of this study, 1.71/4.00 Delta E-00 could be used as perceptibility/acceptability thresholds for acrylic denture base resins.

语种英语
WOS记录号WOS:000361671800005
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/60836
专题北京大学口腔医学院
北京大学口腔医学院_口腔材料学研究室
作者单位1.Boston Univ, Dept Actuarial Sci, Boston, MA USA
2.Peking Univ, Sch Stomatol, Dept Dent Mat, Beijing 100081, Peoples R China
3.Peking Univ, Nat Engn Lab Digital & Mat Technol Stomatol, Beijing 100871, Peoples R China
4.Beijing Inst Technol, Sch Informat Sci & Technol, Nat Lab Color Sci & Engn, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Ren, Jiabao,Lin, Hong,Huang, Qingmei,et al. Color difference threshold determination for acrylic denture base resins[J]. BIO-MEDICAL MATERIALS AND ENGINEERING,2015,suppl.1:S35-S43.
APA Ren, Jiabao,Lin, Hong,Huang, Qingmei,Liang, Qifan,&Zheng, Gang.(2015).Color difference threshold determination for acrylic denture base resins.BIO-MEDICAL MATERIALS AND ENGINEERING,suppl.1,S35-S43.
MLA Ren, Jiabao,et al."Color difference threshold determination for acrylic denture base resins".BIO-MEDICAL MATERIALS AND ENGINEERING suppl.1(2015):S35-S43.
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