Background and Aim: The
Color stability of composite resin materials is important for satisfactory
restorative results. Discoloration of composite restorations can bring about
patient dissatisfaction as well as long term failure of the restoration.The purpose of this study was to evaluate the
effect of tea solution on color stability of 3 nanocomposites.
Materials and Methods:In this
experimental study 30 composite disks 8.5 mm in diameter and 2mm in thickness
were made from the following composite materials:Grandio, Z350XT and Herculite XRV Ultra.The samples were assigned to 3 groups of 10
based on the composite material they were made of Half of the samples in each
group (5 disks) were immersed in tea solution and the other half (5 disks) were
submerged in pure water. Specimens were treated in selected solutions for 72
hours. Calorimetric assessment was done with a spectrophotometer before and
after immersion in designated solutions.. Statistical analysis of the results were done using two-way ANOVA
test.
Results:Measured
discolorations for tested composites Z350XT, Grandio, and Herculite
XRV
were 1.62 ± 0.59, 2.46 ± 0.74, and 2.92 ± 0.72 respectively. The discoloration
(ΔE) of all three composites after immersion in tea was significant (P=0.03)
compared to initial colors However, it was within the clinically acceptable
range (ΔE < 3.3). The Color change after immersion in pure water was not
significant (P=0.1).
Conclusion: The highest level of discoloration belonged to Z350XT
composite, and the lowest discoloration belonged to Herculite XRV Ultra
Mahdisiar F, Nasoohi N, Safi M, Sahraee Y, Zavareian S. Evaluating the effect of tea solution on color stability of three dental composite (In Vitro) . J Res Dent Sci 2014; 11 (1) :21-26 URL: http://jrds.ir/article-1-335-en.html