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Illuminating light-dependent color shifts in core and veneer layers of dental all-ceramics
Alternative TitleJ. Biomed. Opt.
Lee, Yong-Keun1,2; Cha, Hyun-Suk3; Yu, Bin4
2014-09-01
Source PublicationJOURNAL OF BIOMEDICAL OPTICS
ISSN1083-3668
Volume19Issue:9Pages:6
AbstractThe color of an object is perceived differently depending on the ambient light conditions. Since dental all-ceramic restorations are fabricated by building up several layers to reproduce the tooth shade, the optical properties of each layer should be optimized for successful shade reproduction. This study aimed to determine the separate contributions of the color shifts in each of the core and veneer layers of all-ceramics by switching the illuminating lights on the color shifts of layered ceramics. Specimens of seven kinds of core ceramics and the corresponding veneer ceramics for each core were fabricated with a layered thickness of 1.5 mm. A sintering ceramic was used as a reference core material. The Commission Internationale de l'Eclairage (CIE) color coordinates of core, veneer, and layered specimens were measured with a spectroradiometer under the CIE illuminant D65 (daylight), A (incandescent lamp), and F9 (fluorescent lamp) simulating lights. Color shifts of the layered specimens were primarily determined by the CIE a* shifts (D65 to A switch) or by the CIE b* shifts (D65 to F9 switch) of the veneer layer. The color coordinates shifts in the constituent layers differentially influenced those of the layered specimens by the kind of switched lights. Therefore, the optical properties of the constituent layers of all-ceramics should be controlled to reflect these findings. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE); The color of an object is perceived differently depending on the ambient light conditions. Since dental all-ceramic restorations are fabricated by building up several layers to reproduce the tooth shade, the optical properties of each layer should be optimized for successful shade reproduction. This study aimed to determine the separate contributions of the color shifts in each of the core and veneer layers of all-ceramics by switching the illuminating lights on the color shifts of layered ceramics. Specimens of seven kinds of core ceramics and the corresponding veneer ceramics for each core were fabricated with a layered thickness of 1.5 mm. A sintering ceramic was used as a reference core material. The Commission Internationale de l'Eclairage (CIE) color coordinates of core, veneer, and layered specimens were measured with a spectroradiometer under the CIE illuminant D65 (daylight), A (incandescent lamp), and F9 (fluorescent lamp) simulating lights. Color shifts of the layered specimens were primarily determined by the CIE a* shifts (D65 to A switch) or by the CIE b* shifts (D65 to F9 switch) of the veneer layer. The color coordinates shifts in the constituent layers differentially influenced those of the layered specimens by the kind of switched lights. Therefore, the optical properties of the constituent layers of all-ceramics should be controlled to reflect these findings. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
KeywordAll-ceramic Layering Illumination Color Shift Core And Veneer
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1117/1.JBO.19.9.095002
URL查看原文
Indexed BySCI
Language英语
WOS KeywordOPTICAL INFLUENCE ; SHADE GUIDE ; TRANSLUCENCY ; THICKNESS ; DIFFERENCE ; PORCELAIN ; PERCEPTIBILITY ; ACCEPTABILITY ; RESTORATIONS ; COMPOSITE
WOS Research AreaBiochemistry & Molecular Biology ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS SubjectBiochemical Research Methods ; Optics ; Radiology, Nuclear Medicine & Medical Imaging
WOS IDWOS:000343874900010
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11676
Collection研究所(批量导入)
Affiliation1.ICPB, Seoul 156070, South Korea
2.ETN Dent Clin, Seoul 156070, South Korea
3.Univ Ulsan, Coll Med, Dept Dent, Asan Med Ctr, Seoul 138736, South Korea
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Lee, Yong-Keun,Cha, Hyun-Suk,Yu, Bin. Illuminating light-dependent color shifts in core and veneer layers of dental all-ceramics[J]. JOURNAL OF BIOMEDICAL OPTICS,2014,19(9):6.
APA Lee, Yong-Keun,Cha, Hyun-Suk,&Yu, Bin.(2014).Illuminating light-dependent color shifts in core and veneer layers of dental all-ceramics.JOURNAL OF BIOMEDICAL OPTICS,19(9),6.
MLA Lee, Yong-Keun,et al."Illuminating light-dependent color shifts in core and veneer layers of dental all-ceramics".JOURNAL OF BIOMEDICAL OPTICS 19.9(2014):6.
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