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- Title
Optical properties of polyetherketoneketone based indirect dental restorations veneered with composite.
- Authors
Alsadon, Omar; Wood, Duncan; Patrick, David; Bangalore, Durgesh; Pollington, Sarah
- Abstract
In this study, the optical properties of indirect dental restorations based on polyetherketoneketone (PEKK), zirconia (YZ), and nickel-chromium (Ni-Cr) veneered with composite were compared. Based on the spectral reflectance, the CIE L*a*b* color coordinates, the color difference (AE), the opacity and the translucency parameter (TP) were determined using a spectrophotometer equipped with a D65 illuminant. The PEKK and Ni-Cr groups demonstrated similar CIE L*a*b* color values on white and black backgrounds. However, the zirconia group on a white backgrounds showed a slight shift in values towards red-yellow shades. The highest recorded AE values were 1.3 and 1.61 between PEKK and YZ groups, and Ni-Cr and YZ groups respectively. The opacity and translucency (TP) parameters were consistent with the spectral reflectance data, with the Ni-Cr and PEKK groups being completely opaque (100% and 0 TP). It has been shown that the use of the same indirect light-cured composite veneer with different substructure materials has no clinical effect on the esthetics of the final restoration.
- Subjects
DENTAL fillings; DENTAL veneers; OPTICAL properties; SPECTRAL reflectance; TRANSLUCENCY (Optics); ZIRCONIUM oxide
- Publication
Polimery, 2022, Vol 67, Issue 4, p141
- ISSN
0032-2725
- Publication type
Article
- DOI
10.14314/polimery.2022.4.1