en
Scientific article
English

Resin composite thickness' influence on L*a*b* coordinates and translucency

Published inClinical oral investigations, vol. 23, no. 4, p. 1583-1586
Publication date2019-04-10
First online date2018-08-24
Abstract

Objectives: To evaluate if material thickness can influence the L*a*b* coordinates and translucency of different composite shades.

Materials and methods: Twelve composite disc specimens made of three different resin composite materials (dentin A2, Essentia, GC; body shade A2, Brillant Everglow, Coltene-Whaledent; enamel skin neutral, Inspiro, Edelweiss DR) and of three different thicknesses 0.5, 1.0, and 1.5 mm were readied. L*a*b* coordinates of the 118 specimens were assessed by a calibrated reflectance spectrophotometer over a black as well as a white background.

Results: Over the black background, median ΔE00 values varied from 0.7 (Brilliant Everglow) to 1.5 (Inspiro SN) for 0.5-mm composite thickness (intrinsic color variation) and from 3.2 (Essentia) to 7.5 (Inspiro SN) for 1.0 mm, respectively 6.1 (Essentia) to 11.1 (Inspiro SN) for 1.5-mm composite thickness (color variation related to thickness). Over the white background, median ΔE00 values varied from 0.6 (Essentia) to 1.6 (Inspiro SN) for 0.5-mm composite thickness and from 2.9 (Inspiro SN) to 4.3 (Essentia) for 1.0 mm, respectively 4.9 (Inspiro SN) to 7.0 (Essentia) for 1.5-mm composite thickness. Transparency varied from 25.2% (Essentia) to 34.6% (Inspiro SN) for 0.5-mm composite thickness, from 20.3% (Essentia) to 27.5% (Inspiro SN) for 1.0-mm thickness and from 14.8% (Essentia) to 22.9% (Inspiro SN) for 1.5-mm thickness.

Conclusions: Material thickness can influence the L*a*b* coordinates and translucency of different composite shades.

Clinical relevance: L* a* b* coordinates are influenced by composite thickness.

eng
Keywords
  • Lab coordinates
  • Resin composite thickness
  • Translucency
  • Color
  • Composite Resins
  • Dental Enamel
  • Materials Testing
  • Spectrophotometry
Citation (ISO format)
ARDU, Stefano et al. Resin composite thickness” influence on L*a*b* coordinates and translucency. In: Clinical oral investigations, 2019, vol. 23, n° 4, p. 1583–1586. doi: 10.1007/s00784-018-2585-9
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Article (Published version)
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Identifiers
ISSN of the journal1432-6981
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Creation09/26/2018 6:37:00 AM
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