European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
September 2018
Print ISSN:
0965-7452
Electronic ISSN:
2396-8893
Vol:
26
Issue:
3

Effect of Zirconia Pigmentation on Translucency

Purpose: the aim of this study was to investigate the effect of shading on translucency and mean grain size of three Zirconia systems (Lava Frame, Ice Zirkon Translucent and Prettau Zirkon). Materials and Methods: specimens pigmented in A1, A4 and a non-pigmented specimen was evaluated with Scanning Electron Microscopy and spectrophotometery. Results: the transmittance ranged between 0.18 and 0.52, in Ice Zirkon Translucent A4 and Prettau Zircon non-pigmented, respectively. The pigmentation A1 and A4 significantly reduced the light transmission in all the systems evaluated (p<0.05), with the exception of Lava A1. The light transmittance of each ceramic system is different from each other in the three pigmentations, except for the Prettau Zirkon A1, which did not show a significant difference compared with Lava A1 (p>0.05). The mean grain size increased with pigmentation. The mean grain size ranged between 0.43 μm, for Prettau Zirkon non-pigmented, and 0.82 μm for Prettau Zirkon A4. Conclusion: Light transmission and mean grain size was affected by pigmentation of dental zirconia ceramics.

Keywords
Zirconia
Pigmentation
Transmittance
Grain Size


doi: 10.1922/EJPRD_01779Gomes07

Article Price
£15.00
Institution Article Price
£
Page Start
136
Page End
142
Authors
Isabel Gomes, Luis P Lopes, Miguel Fonseca, Jaime Portugal

Articles from this issue

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  • Pg. End

  1. Accuracy of Intraoral Scanners: A Systematic Review of Influencing Factors
  2. 101
  3. 121

  1. Effect of Bioactive Composites on Microhardness of Enamel Exposed to Carious Challenge
  2. 122
  3. 128

  1. Comparative Evaluation of Surface Defects In Single File Rotary Systems Before and After Instrumentation In Curved Root Canals
  2. 130
  3. 135

  1. Effect of Zirconia Pigmentation on Translucency
  2. 136
  3. 142

  1. The Effect of Try-In Paste and Resin Cement Shade on Colour Properties of Dental Veneers
  2. 144
  3. 151

  1. Clinical Evaluation of SonicActivated High Viscosity Bulk-Fill Nanohybrid Resin Composite Restorations in Class II Cavities: A Prospective Clinical Study up to 2 Years
  2. 152
  3. 160