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Effect of Thickness on Fluorescence of Some Clinical Dental Ceramics Publisher



Hashemikamangar SS1 ; Valizadeh S2 ; Nahavandi AM3 ; Tabatabaei M2 ; Daryadar M2
Authors
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Authors Affiliations
  1. 1. Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Color Imaging and Color Image Processing Department, Institute for Color Science and Technology, Tehran, Iran

Source: Frontiers in Dentistry Published:2021


Abstract

Objectives: This study aimed to develop a new method for measurement of florescence and compare the fluorescence of some clinical dental ceramics in different thicknesses. Materials and Methods: Forty-eight samples of feldspathic (Vita VM9, A2), IPS e.max (Ivoclar HT, A2), zirconia (Korox Zircostar, A2) and Enamic (Vita A2) ceramics were used in this study in 0.5 and 1 mm thicknesses. The fluorescence of the samples was measured by using a developed technique. The results were analyzed by twoway ANOVA and Duncan post-hoc test. P<0.05 was considered significant. Results: Enamic, feldspathic and e.max ceramics had significantly different fluorescence in descending order (P=0.000). Fluorescence of ceramics increased with an increase in their thickness from 0.5 to 1 mm (P=0.007). Conclusion: The results confirmed the applicability of the presented method for measurement of fluorescence of dental ceramics. While, the thickness of restoration determines the concentration of the fluorescent agent, some additional technical information is required for justification of the observed trend in the studied ceramics. © 2021 The Authors. Published by Tehran University of Medical Sciences.