Proceedings of the 11th International Dentistry Scientific Meeting (IDSM 2017)

The Effect of Light-Curing Duration and Different Composite Shades on Color Stability of Composite Resins

Authors
Nurhanani Mohd Sadek, Nur Syuhadah Jamal, Victor Goh, Goo Chui Ling
Corresponding Author
Nurhanani Mohd Sadek
Available Online May 2018.
DOI
https://doi.org/10.2991/idsm-17.2018.22How to use a DOI?
Keywords
composite resin, color stability, light curing duration, composite shades, light-emitting diodes
Abstract
Aims of this study is to evaluate the effect of light-curing duration using light-emitting diodes (LED) curing units and different composite shades on the color stability of the composite resins. Specimens in four shades of two types of com-posite resin were prepared and polymerized with the LED curing unit. The initial color parameters (L*,a*,b*,E*) were done using a spectropho-tometer before sub-jected to a thermocycling regimen comprising of 500 cycles in water of 55˚C and 5˚C. The final color readout was then performed to determine the color changes using ANOVA and Tukey-Kramer post-hoc test. After thermocycling regimen, the mean delta E* of specimens were in the range of 1.67 to 4.78. The mean delta a* of specimens were mostly positive, while the mean delta L* and delta b* were mostly negative. There was perceptible color change in most of the specimens as they were mostly darker value (negative delta L*), shifted towards reddish discol-oration (positive delta a*) and blueish discoloration (negative delta b*). The color change experienced by the specimens could not be anticipated in relation to cur-ing duration and types of composite shades as the effect was more likely depend-ent on individual material composition rather than actual shade classification. Neither light-cure duration nor difference in shades had significant effect on the amount of color change in composite resins.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
11th International Dentistry Scientific Meeting (IDSM 2017)
Part of series
Advances in Health Sciences Research
Publication Date
May 2018
ISBN
978-94-6252-513-9
ISSN
2468-5739
DOI
https://doi.org/10.2991/idsm-17.2018.22How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Nurhanani Mohd Sadek
AU  - Nur Syuhadah Jamal
AU  - Victor Goh
AU  - Goo Chui Ling
PY  - 2018/05
DA  - 2018/05
TI  - The Effect of Light-Curing Duration and Different Composite Shades on Color Stability of Composite Resins
BT  - 11th International Dentistry Scientific Meeting (IDSM 2017)
PB  - Atlantis Press
SN  - 2468-5739
UR  - https://doi.org/10.2991/idsm-17.2018.22
DO  - https://doi.org/10.2991/idsm-17.2018.22
ID  - MohdSadek2018/05
ER  -