Abstract
Objective: The aim of this study was to evaluate the effect of different bleaching agents on the surface roughness and color stability of feldspathic porcelain. Material and Methods: In this study, totally 40 disc-shaped Noritake and Ceramco 3 feldspathic porcelain and two bleaching agents (Opalescence Boost and Opalescence Pf) were used. Bleaching agents were exposed to specimens according to their protocol. Then, the surface roughness of the specimens was evaluated with profilometer and the color of the specimens was recorded by colorimeter. Statistical analysis of the data was performed with IBM SPSS Statistics 20. Results: The results showed that that there were statistically significant differences between the bleaching agents on the surface roughness of feldspathic porcelain (p<0.05). However, there were no statistically significant differences between the bleaching agents on the color stability of feldspathic porcelain (p>0.05). Conclusion: The obtained data presented that the bleaching agents increased the surface roughness and not affect the color stability of the feldspathic porcelain.KeywordsBleaching; Ceramic; Color; Surface roughness.
Highlights
There have recently been changes in esthetical points of view and expectations for improving and developing esthetic treatments in the field of dentistry
The aim of this study was to evaluate the effect of different bleaching agents on the surface roughness and color stability of feldspathic porcelain
At-home bleaching was statistically significant in Noritake porcelains (p0.05) (Table 1)
Summary
There have recently been changes in esthetical points of view and expectations for improving and developing esthetic treatments in the field of dentistry. Whiter teeth have become the biggest esthetic concern over the past few years and worldwide, most people want non discolored and esthetically appealing teeth [1]. Several approaches, including whitening toothpastes, can improve tooth color. Other approaches include professional cleaning by scaling and polishing to remove stain and tartar, tooth bleaching, micro abrasion of enamel with abrasives and acid, and the placement of crowns and veneers [2,3]. Bleaching is one of the most commonly used clinical dental esthetic procedures [4]. Bleaching is used to increase the brightness of teeth, but it may affect the surface of restorative materials [5,6]
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