Colorimetric evaluation of dentin is significant for accurate color selection in cast ceramic prostheses

doi:10.3969/j.issn.2095-4344.2014.12.014

Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (12): 1889-1894.doi: 10.3969/j.issn.2095-4344.2014.12.014

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Colorimetric evaluation of dentin is significant for accurate color selection in cast ceramic prostheses

Piao Guo-bin¹, Zhao Bing-song², Shi Xu-xu¹

1Department of Prosthodontics, Daqing General Hospital Group Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China
2Jiamusi University, Jiamusi 154000, Heilongjiang Province, China

Revised:2014-01-07 Online:2014-03-19 Published:2014-03-19
Contact: Zhao Bing-song, Studying for master’s degree, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China
About author:Piao Guo-bin, Master, Attending physician, Department of Prosthodontics, Daqing General Hospital Group Oilfield General Hospital, Daqing 163001, Heilongjiang Province, China

Abstract

Abstract:

BACKGROUND: VITA 3D Master shade guide is a newly launched colorimetric system in recent years, with a wide clinical prospect.
OBJECTIVE: To evaluate the significance of dentin colorimetric evaluation for accurate color section of cast ceramic prostheses.
METHODS: Using conventional colorimetric assay and conventional colorimetric assay combined with dentin colorimetric assay (combined colorimetric assay), 30 patients were subject to colorimetric evaluation 1/3 to the neck, central part, and cut end of the tooth. In CIE1976L * a * b * color system, a digital SLR camera (Canon D50) was used for colorimetric measurement and analysis of cast ceramic prostheses prepared with two colorimetric methods and teeth with the same name. And a variety of new colorimetric methods were analyzed based on examples.
RESULTS AND CONCLUSION: In the conventional colorimetric group, △L*was 1.22±0.16, △C* was 1.19±0.20, △H* was 0.31±0.05, △E* was 1.32±0.13. in the combined colorimetric group, △L*was 1.03±0.11, △C* was 1.12±0.19, △H*was 0.29±0.03, △E* was 1.23±0.11. Cast ceramic prostheses prepared by conventional colorimetric method were satisfactory in 22 cases, while cast ceramic prostheses prepared by the combined colorimetric method were satisfactory in 23 cases. There was no difference in patient satisfaction for color rendition (P > 0.05), but chromatic difference analysis was significantly different between the two groups (P < 0.05).

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

全文链接：

Key words: tooth diseases, tooth discoloration, tooth injuries, tooth loss, tooth abrasion

CLC Number:

R318

Piao Guo-bin, Zhao Bing-song, Shi Xu-xu. Colorimetric evaluation of dentin is significant for accurate color selection in cast ceramic prostheses[J]. Chinese Journal of Tissue Engineering Research, 2014, 18(12): 1889-1894.

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Colorimetric evaluation of dentin is significant for accurate color selection in cast ceramic prostheses

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