Active bleaching became popular in most dental offices with & without light activation. The aim of this study is to study the rule of light activation of hydrogen peroxide 35% in improving tooth color.
15 upper third molars were extracted. Each crown was sectioned into 3 parts which surrounded with three acrylic blocks. So that we have 45 dental blocks distributed into 3 groups: G(A) : control group(15 blocks) no bleaching treatment was performed. G(B) : (15 blocks) were placed in contact with whitening material(FGM 35%).G(C) : (15 blocks) were submitted to the same material but with light activation. Specimens were stored in artificial saliva for 7 days after rinsing with distilled water, then its color was taken by using vita easy shade, then submitted to statistical T-S test At p<0.05.Results :the G (B) results value was smaller than the G(C) results value.
Light activation of whitening materials affected color change by improving it.
Tishreen University journal.
2011.
The Role of light activation of hydrogenperoxide 35% in improving tooth color
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