15Aug 2017

EFFECT OF APPLICATION OF NATURALLY OCCURRING ANTI-OXIDANT AGENTS ON BONDING OF COMPOSITE RESIN TO BLEACHED ENAMEL- AN IN-VITRO STUDY.

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Background: With the minimal invasive concepts gaining popularity, vital tooth bleaching is well accepted treatment with predictable outcome. One of the disadvantages of tooth bleaching is decreased bond strength of composite resin to enamel. Antioxidants are used to get back the decreased bond strength. Aim of the study: was to investigate, the effect of immediate application of three anti-oxidant agents on reversal of decreased bond strength of composite resin to bleached enamel & to evaluate and compare the resin enamel interface with and without the use of anti-oxidants using SEM. Materials and Methods: Labial enamel surfaces of 50 extracted human maxillary central incisors were randomly divided into five groups based on the antioxidant used, Group I (n=10): negative control, Group II (n=10): positive control, Group III (n=10): bleaching followed by 10% sodium ascorbate solution application , Group IV (n=10): bleaching followed by 5% pomegranate seed extract application , Group V (n=10): bleaching followed by 5% tomato seed extract application. Each specimen was tested for shear bond strength. Two specimens from each group were selected for scanning electron microscopic (SEM) observation to assess resin enamel interface. Results: Significantly higher shear bond strength values were observed in Group IV, Group V as compared with the control groups, Group I and II. SEM analysis also proved the above results. Conclusion: It can be concluded that the use of tomato seed extract and pomegranate seed extract can be used as an alternative to sodium ascorbate prior to bonding procedures on bleached enamel.

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[Ashok HK, Roopa R Nadig, K Rashmi, Vedavathi, Veena S Pai and Swapna DV. (2017); EFFECT OF APPLICATION OF NATURALLY OCCURRING ANTI-OXIDANT AGENTS ON BONDING OF COMPOSITE RESIN TO BLEACHED ENAMEL- AN IN-VITRO STUDY. Int. J. of Adv. Res. 5 (Aug). 824-831] (ISSN 2320-5407). www.journalijar.com

Dr ASHOK HK
Dayananda Sagar College of Dental Sciences, Rajiv Gandhi University of Health Sciences, Bangalore

DOI:

Article DOI: 10.21474/IJAR01/5125      
DOI URL: https://dx.doi.org/10.21474/IJAR01/5125

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