TY  - JOUR
T1  - Effect of Immediate Application of Pomegranate Peel, Grape Seed and Green Tea Extracts on Composite Shear Bond Strength of In-Office Bleached Enamel
AU - Motamedi, Mehran AU - Sharafeddin, Farahnaz AU - Modiri, Shiva 
JO  - Research Journal of Biological Sciences
VL  - 8
IS  - 3
SP  - 83
EP  - 87
PY  - 2013
DA  - 2001/08/19
SN  - 1815-8846
DO  - rjbsci.2013.83.87
UR  - https://makhillpublications.co/view-article.php?doi=rjbsci.2013.83.87
KW  - Antioxidant
KW  -shear bond strength
KW  -tooth bleaching
KW  - grape
KW  -seed
KW  -green tea
AB  - This <I>in vitro</I> study evaluated the effectiveness of 5% solution of grape seed, pomegranate peel, green tea extracts and a 10% solution of sodium ascorbate on composite shear bond strength of bleached enamel. The 70 bovine incisors were divided in 7 groups (n = 10); group A: Immediate bonding; B: 2 weeks delay bonding; C: 10% sodium ascorbate; D: 5% green tea extract; E: 5% pomegranate extract; F: 5% grape seed extract; control: No bleaching, no antioxidant. For groups A-F, hydrogen peroxide gel was applied on the labial surface of teeth then composite with dimension of 5 mm diameter and 2 mm height was placed. Universal testing machine measured the shear bond strength. The data was analyzed using one-way ANOVA and Tukey tests (p&le;0.05). Group A exhibited the lowest shear bond strength among the groups (statistically significant; p&lt;0.0001). There was no significant difference between group B-F and control (p&gt;0.05). All the antioxidants used in this study was equally effective to neutralize adverse effects of hydrogen peroxide on composite bond strength of enamel immediately after bleaching.
ER  -