2011
DOI: 10.1590/s1678-77572011000200012
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Difference in the color stability of direct and indirect resin composites

Abstract: Indirect resin composites are generally regarded to have better color stability than direct resin composites since they possess higher conversion degreeObjectiveThe present study aimed at comparing the changes in color (∆E) and color coordinates (∆L, ∆a and ∆b) of one direct (Estelite Sigma: 16 shades) and 2 indirect resin composites (BelleGlass NG: 16 shades; Sinfony: 26 shades) after thermocycling.Material and MethodsResins were packed into a mold and light cured; post-curing was performed on indirect resins… Show more

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Cited by 38 publications
(52 citation statements)
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References 16 publications
(36 reference statements)
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“…Moreover, the composition and volume of organic matrix, type and volume of filler particles, type of filler-matrix silanization, and polishing have been reported as the relevant factors in the composite susceptibility to staining 4) . Color stability of resin composites has been reported as being improved when materials showed low water sorption, high fillerresin ratio, reduced particle size and hardness and an optimal filler-matrix coupling system 9) . Previously, nano-composites have been claimed to combine the good mechanical strength of the hybrid-type composites 10,11) and the superior polish of the microfills 12) .…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, the composition and volume of organic matrix, type and volume of filler particles, type of filler-matrix silanization, and polishing have been reported as the relevant factors in the composite susceptibility to staining 4) . Color stability of resin composites has been reported as being improved when materials showed low water sorption, high fillerresin ratio, reduced particle size and hardness and an optimal filler-matrix coupling system 9) . Previously, nano-composites have been claimed to combine the good mechanical strength of the hybrid-type composites 10,11) and the superior polish of the microfills 12) .…”
Section: Introductionmentioning
confidence: 99%
“…26 Benzer şekilde, termal siklusa bağlı oluşan bu ayrışma, su absorbsiyonu, ve lekelenme, kompozit rezinlerde renk değişiklikleri oluşturmaktadır. 19 Matsumura ve ark. 27 artık monomer miktarının renk stabilitesinde etkili olduğunu ifade etmişlerdir.…”
Section: Discussionunclassified
“…19 indirekt kompozit rezinlerde 5000 termal siklus sonrası oluşan renk farklılıklarını karşılaştırmışlar ve renk değişiminin (∆E) 0.3-1.5 arasında olduğunu göstermişlerdir, ancak bizim çalışmamızdan farklı olarak, Lee ve ark. 19 farklı indirekt kompozit rezinleri test etmişler ve rezin polimerizasyonu için ikinci bir polimerizasyon uygulamışlardır. Önceki çalışmalarda ikinci polimerizasyon sonrası artan karbon çift bağlarının renk stabilitesini arttırdığı bildirilmiştir.…”
Section: Discussionunclassified
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