Evaluating the Effect of CPP-ACP as a Final Irrigant in Improving the Micro- Hardness of Erosive Root Dentin and its Influence on the Bond Strength of Self Etch Resin Sealer – An In-vitro Study
| Autor: | Ravi Kumar Janga, Disha Saraswati, Swetha Bollineni, Bhavana Gandhi, Mandava Ramesh Babu |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
sodium hypochlorite Root canal Clinical Biochemistry Smear layer lcsh:Medicine Dentistry Ethylenediaminetetraacetic acid dentin Indentation hardness ethylenediaminetetraacetic acid 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system Dentin medicine biology Bond strength business.industry lcsh:R 030206 dentistry General Medicine Gutta-percha biology.organism_classification Dentistry Section 030104 developmental biology medicine.anatomical_structure chemistry Sodium hypochlorite resin cement business |
| Zdroj: | Journal of Clinical and Diagnostic Research, Vol 10, Iss 8, Pp ZC53-ZC56 (2016) |
| ISSN: | 2249-782X |
| DOI: | 10.7860/jcdr/2016/20819.8272 |
| Popis: | Introduction: Smear layer removal from the root canal wall involves the use of 17% EDTA and 5.25% sodium hypochlorite, which thereby improves the adhesion of obturating materials to root dentin. But these chemical irrigants have shown to decrease micro hardness, increase roughness, cause erosion and reduce the root dentin fracture toughness. To combat these adverse effects, studies can be focussed on the remineralisation of the erosive root dentin and this novel idea has been utilized in the present study. Aim: To evaluate the micro hardness of erosive root dentin when Casein Phosphopeptide–Amorphous Calcium Phosphate (CPP-ACP) was used as a final irrigant and its influence on resin sealer bonding tested by push-out bond strength method. Materials and Methods: Sixty extracted maxillary incisors were divided into three groups based on the final irrigation protocol. Group 1-normal saline, Group 2-17% EDTA (Ethylene Diamine Tetraacetic Acid) + 5.25% NaOCl (Sodium Hypochlorite), Group 3 - 17% EDTA + 5.25% NaOCl + CPP-ACP; each group was divided into two subgroups. Half the specimens of each group were evaluated for Vicker’s micro hardness test after the treatment. In continuation with the above methodology the remaining specimens were tested for push-out bond strength after obturation of the specimens with self etch adhesive resin sealer and conventional 6% gutta percha cones. Results: Micro hardness was statistically analysed using Kruskal Wallis test and push-out bond strength was evaluated using Mann Whitney test and paired t-test. CPP-ACP treated group showed increased micro hardness (p |
| Databáze: | OpenAIRE |
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