Color Analysis of Metal Ceramic Restorations Fabricated from Different Dental Laboratories
Source abstract
Abstract
Objective: The aim of the present in vitro study was to explore the differences in color matching of most frequently used shades for metal ceramic dental restorations fabricated by different laboratories. Materials and Methods: A total sample size of 180 discs of metal ceramic were prepared by six laboratories (labs): each lab prepared 30 samples, 10 for each shade (A1, B1, and C1). Instructions for standardization were provided. A spectrophotometer and CIE LAB system was used to find ΔE value for difference between shades observed by spectrophotometer. For statistical analysis, ANOVA and post hoc Tukey tests were used. Significance level was <0.05. Results: Significant variation (p = 0.000) was observed among the labs for ΔE. The maximum value for ΔE in shade A1 was 77.0 ± 0.065 and minimum value for ΔE noted for shade A1 was 69.19 ± 1.39. The values of ΔE for shade B1 were maximum 80.14 ± 0.16 and minimum 68.38 ± 0.40 and the values of ΔE for shade C1 were maximum 80.16 ± 0.14 and minimum 71.62 ± 1.23. Twelve out of 15 comparisons between labs for shade A1, 14 of 15 comparisons for shade B1, and 11 of 15 comparisons for shade C1 showed significant difference (p = 0.000). Conclusions: Similar tooth shades (A1, B1, and C1) when duplicated by different labs exhibited highly significant color variations.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Dental materials and restorations · Dental Erosion and Treatment · Dental Anxiety and Anesthesia Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
Department of Prosthodontics, Shahida Islam Dental College, Lodhran 59320, Pakistan
Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Qassim 52571, Saudi Arabia
Department of Operative Dentistry, Riphah International University, Islamabad 44000, Pakistan
Department of Restorative Dentistry, College of Dentistry, Taibah University, Al Madinah, Al Munawwarah 41311, Saudi Arabia
Department of Dental Materials, Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan
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