Resin composite thickness' influence on L*a*b* coordinates and translucency.
- Ardu S Treatment Plan Unit and Division of Cariology and Endodontology, Clinique Universitaire de Médecine Dentaire (CUMD), University of Geneva, Geneva, Switzerland. stefano.ardu@unige.ch.
- Rossier I Laboratory Technician, Division of Cariology and Endodontology, Clinique Universitaire de Médecine Dentaire (CUMD), University of Geneva, Geneva, Switzerland.
- di Bella E Department of Economics and Business Studies, University of Genoa, Genoa, Italy.
- Krejci I Division of Cariology and Endodontology, Clinique Universitaire de Médecine Dentaire (CUMD), University of Geneva, Geneva, Switzerland.
- Dietschi D Division of Cariology and Endodontology, Clinique Universitaire de Médecine Dentaire (CUMD), University of Geneva, Geneva, Switzerland.
- 2018-08-26
Published in:
- Clinical oral investigations. - 2019
L*a*b* coordinates
Resin composite thickness
Translucency
Color
Composite Resins
Dental Enamel
Materials Testing
Spectrophotometry
English
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.
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.
- Language
-
- English
- Open access status
- green
- Identifiers
-
- DOI 10.1007/s00784-018-2585-9
- PMID 30143901
- Persistent URL
- https://sonar.ch/global/documents/169699
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