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Effects of common beverage colorants on color stability of dental composite resins: The utility of a thermocycling stain challenge model in vitro
Ren, Yan-Fang1; Feng, Lin1,2; Serban, Diana1; Malmstrom, Hans S.1
关键词Composite Resin Color Stability Color Assessment Tooth Discoloration Aesthetic Dentistry
刊名JOURNAL OF DENTISTRY
2012-07-01
DOI10.1016/j.jdent.2012.04.017
suppl.1页:E48-E56
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]FOOD-SIMULATING SOLUTIONS ; RESTORATIVE MATERIALS ; CLINICAL-EVALUATION ; WATER SORPTION ; NANOFILL COMPOSITE ; IMMERSION MEDIA ; SUSCEPTIBILITY ; NANOCOMPOSITES ; SOLUBILITY ; SYSTEMS
英文摘要

Objectives: To study the color stability of dental composite resins using a thermocycling stain challenge model accounting for the complex effects of oral environment and tooth brushing.

Methods: Composite resin discs were made from Filtek Supreme Ultra (FiltekSU), TPH3 and Renamel, and subjected to thermocycling challenges in warm coffee (55 degrees C/pH 5.2) and a cold tea and fruit juice mixtures (5 degrees C/pH 3.6) for a total of 1000 cycles with 30 seconds dwell time in each solution per cycle. Color was assessed in the CIELAB color space using a Crystaleye dental spectrophotometer before and after thermocycling, and after brushing vigorously for 3 min. The thermocycling stain challenge was repeated for a second 1000 cycles and the discs were brushed again. Color changes were compared among the 3 groups using Kruskal-Wallis test.

Results: All 3 groups showed statistically significant color changes after stain challenge, with Delta E* as 5.74 for FiltekSU, 3.21 for TPH3 and 2.52 for Renamel. Color change was more significant in FiltekSU than in TPH3 and Renamel (p < 0.05). After brushing, color recovered mostly to its original CIELAB values in TPH3 and Renamel but less so in FiltekSU. The second round of thermocycling stain challenge resulted in color changes in FiltekSU that largely could not be removed by vigorous brushing.

Conclusions: Color stability of FiltekSU is inferior to that of TPH3 and Renamel. The thermocycling stain challenge model can potentially differentiate surface staining that can be removed by brushing from true discoloration of the material that is refractory to oral hygiene procedures. (C) 2012 Elsevier Ltd. All rights reserved.

语种英语
WOS记录号WOS:000305338800008
项目编号7113176
资助机构Devision of General Dentistry, University of Rochester Eastman Institute for Oral Health ; University of Rochester Eastman Institute for Oral Health ; University of Rochester Eastman Institute for Oral Health under Collaborative Initiative in Clinical and Translational Dental Research ; University of Rochester Eastman Institute for Oral Health under Peking University School of Stomatology ; Beijing Natural Science Foundation
引用统计
被引频次:29[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/400002259/55531
专题北京大学口腔医学院
北京大学口腔医学院_牙体牙髓科
作者单位1.Univ Rochester, Div Gen Dent, Eastman Inst Oral Hlth, Rochester, NY 14620 USA
2.Peking Univ, Sch Stomatol, Dept Endodont & Operat Dent, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Ren, Yan-Fang,Feng, Lin,Serban, Diana,et al. Effects of common beverage colorants on color stability of dental composite resins: The utility of a thermocycling stain challenge model in vitro[J]. JOURNAL OF DENTISTRY,2012,suppl.1:E48-E56.
APA Ren, Yan-Fang,Feng, Lin,Serban, Diana,&Malmstrom, Hans S..(2012).Effects of common beverage colorants on color stability of dental composite resins: The utility of a thermocycling stain challenge model in vitro.JOURNAL OF DENTISTRY,suppl.1,E48-E56.
MLA Ren, Yan-Fang,et al."Effects of common beverage colorants on color stability of dental composite resins: The utility of a thermocycling stain challenge model in vitro".JOURNAL OF DENTISTRY suppl.1(2012):E48-E56.
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