Efficacy of anti-oxidants when used for distinctive time to re-establish bond strength
Journal Title: IP Indian Journal of Conservative and Endodontics - Year 2018, Vol 3, Issue 1
Abstract
Introduction The objective was to evaluate the effect of three antioxidants Sodium thiosulphate Sodium ascorbate and Rosemarinic acid with different application times in reversing the bond strength of dentine compromised by sodium hypochlorite NaOCl and EDTAMaterial and Method Crowns of bovine incisors were cut to expose the dentine pulp chamber from which 84 buccal and lingual surface samples were selected The specimens were polished and randomly distributed into 6 groups Each group has n7 ie 6 X 7 42 samples Group 109 sodium chloride for 30mins negative control Group 2 525 NaOCl for 30mins 17 EDTA for 3mins and 525 NaOCl for 1min positive control Groups 3 4 5 and 6 were treated in the same manner as positive control Group 3 samples were neutralized by immersion in an inert solution saline for 10minsThe samples of Groups 4 5 6 were neutralized with the antioxidant reagents mentioned above Group 4 5 6 were subgrouped for 3mins 5mins and 10mins ie 4a 4b 4c 5a 5b 5c and 6a 6b 6c The specimens were dried and etched with total adhesive system according to manufactures instructions Followed by 3 mm buildup of composite resin incrementally to bonded dentine and light cured for 20 seconds The micro tensile bond strength was determined using universal testing machine and was statistically analysed with independent sample tTest with 95 confidence limitsnbspResults At 3 mins and 5mins rosemary extract performed better than sodium thiosulphate and sodium ascorbate with P values 00000000 and 00000040 Rosemary extract when used for 3mins and 5 mins showed a significantly better performance than at 10mins with P values 0000 and 0001 At 3 mins and 5mins rosemary did not show any significant differenceKeywords Sodium Thiosulphate Sodium Ascorbate Rosemarinic acid Sodium hypochlorite
Authors and Affiliations
Princy Maria Philip, Sindhu J. , Mohan Thomas Nainan
Keywords
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- EP ID EP520447
- DOI 10.18231/2456-8953.2018.0004
- Views 60
- Downloads 0
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