European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
March 2019
Print ISSN:
0965-7452
Electronic ISSN:
2396-8893
Vol:
27
Issue:
1

The Effects of Colored Pigments on the Translucency of Experimental Dental Resin Composites

doi: 10.1922/EJPRD_01855Azhar08


Objective: Colored pigments are incorporated into dental resin composites to produce
clinically acceptable shades for restorative materials but studies on their effects on
translucency are rare. The aim of this study was to examine the effects of the addition
of different colored pigments on the translucency of experimental dental resin composites. Materials and Methods: 12 types of experimental dental resin composites containing different concentrations of red and yellow iron oxide pigments were formulated and
light-cured. Total and diffuse translucency as well as CIE L*a*b* values were measured
and the color differences were calculated. Results: There was a statistically significant
difference in the translucency values between the composites with no pigments and the
composites with increasing concentrations of the pigments (p<0.05). The translucency
decreased as the concentration of the pigments increased. However at pigment concentrations greater than 0.02%, the translucency of the composites reached a plateau and
ceased to be influenced by the addition of the pigments (p>0.05). All color differences
were in the range of 3.62–16.00 ΔE*ab unit. Conclusions: The pigments used in this
study can influence the translucency of the experimental resin composites and should
be considered as an important factor by clinicians to achieve optimal esthetic restorative outcome.
Keywords

Dental Material
Composite Resin
Translucency
Pigment
Color

Copyright ©2019 by Dennis Barber Ltd. All rights reserved.

Article Price
£15.00
Institution Article Price
£
Page Start
3
Page End
9
Authors
Dr. Gulelala Azhar, Dr. Karine Haas, Dr. Duncan J Wood, Richard van Noort, Dr. Keyvan Moharamzadeh

Articles from this issue

  • Title
  • Pg. Start
  • Pg. End

  1. The Effects of Colored Pigments on the Translucency of Experimental Dental Resin Composites
  2. 3
  3. 9

  1. Evaluation of Monomer Leaching from a Resin Cement Through Dentin
  2. 10
  3. 17

  1. Fit Accuracy of Pressed and Milled Lithium Disilicate Inlays Fabricated From Conventional Impressions or a Laboratory-Based Digital Workflow
  2. 18
  3. 25

  1. Evaluation of the Internal and Marginal Discrepancies of Co-Cr Metal Copings Prepared via CAD/CAM and Conventional Casting
  2. 26
  3. 31

  1. Adequately Prepared? A Study Using an Innovative Computer Application to Measure Clinical Crown Convergence Angles Achieved by Students at a UK Dental School
  2. 32
  3. 38

  1. Clinical Performance of Nanofilled and Microhybrid Direct Composite Restorations on Endodontically Treated Teeth
  2. 39
  3. 47