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

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...

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Main Authors: Bhavana Gandhi, Swetha Bollineni, Ravi Kumar Janga, Disha Saraswati, Mandava Ramesh Babu
Format: Article
Language:English
Published: JCDR Research and Publications Private Limited 2016-08-01
Series:Journal of Clinical and Diagnostic Research
Subjects:
Online Access:https://jcdr.net/articles/PDF/8272/20819_CE(EK)_F(AK)_PF1(EKAK)_PFA(AK)_PF2(PAG).pdf
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author Bhavana Gandhi
Swetha Bollineni
Ravi Kumar Janga
Disha Saraswati
Mandava Ramesh Babu
author_facet Bhavana Gandhi
Swetha Bollineni
Ravi Kumar Janga
Disha Saraswati
Mandava Ramesh Babu
author_sort Bhavana Gandhi
collection DOAJ
description 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<0.05). There was no statistically significant difference between the push-out bond strength values between group EDTA + NaOCl group and EDTA + NaOCl + CPP-ACP group. Conclusion: Within the limitations of this study it can be concluded that, CPP-ACP improved the micro hardness of erosive root dentin and is not affecting its bond strength. Therefore, CPP-ACP may be used before bonding procedures for promoting remineralization of root dentin.
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spelling doaj.art-9ae7c40e09de4642a3a38ffe221db20d2022-12-21T19:57:12ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2016-08-01108ZC53ZC5610.7860/JCDR/2016/20819.8272Evaluating 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 StudyBhavana Gandhi0Swetha Bollineni1Ravi Kumar Janga2Disha Saraswati3Mandava Ramesh Babu4Assistant Professor, Department of Conservative Dentistry and Endodontics, Drs. Sudha and Nageswara Rao Institute of Dental Sciences, Gannavaram, Andhra Pradesh, India.Assistant Professor, Department of Conservative Dentistry and Endodontics, Drs. Sudha and Nageswara Rao Institute of Dental Sciences, Gannavaram, Andhra Pradesh, India.Associate Professor, Department of Conservative Dentistry and Endodontics, Drs. Sudha and Nageswara Rao Institute of Dental Sciences, Gannavaram, Andhra Pradesh, India.Professor, Department of Conservative Dentistry and Endodontics, Drs. Sudha and Nageswara Rao Institute of Dental Sciences, Gannavaram, Andhra Pradesh, India.Professor, Department of Conservative Dentistry and Endodontics, Drs. Sudha and Nageswara Rao Institute of Dental Sciences, Gannavaram, Andhra Pradesh, India.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<0.05). There was no statistically significant difference between the push-out bond strength values between group EDTA + NaOCl group and EDTA + NaOCl + CPP-ACP group. Conclusion: Within the limitations of this study it can be concluded that, CPP-ACP improved the micro hardness of erosive root dentin and is not affecting its bond strength. Therefore, CPP-ACP may be used before bonding procedures for promoting remineralization of root dentin.https://jcdr.net/articles/PDF/8272/20819_CE(EK)_F(AK)_PF1(EKAK)_PFA(AK)_PF2(PAG).pdfdentinethylenediaminetetraacetic acidresin cementsodium hypochlorite
spellingShingle Bhavana Gandhi
Swetha Bollineni
Ravi Kumar Janga
Disha Saraswati
Mandava Ramesh Babu
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
Journal of Clinical and Diagnostic Research
dentin
ethylenediaminetetraacetic acid
resin cement
sodium hypochlorite
title 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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_short 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
title_sort 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
topic dentin
ethylenediaminetetraacetic acid
resin cement
sodium hypochlorite
url https://jcdr.net/articles/PDF/8272/20819_CE(EK)_F(AK)_PF1(EKAK)_PFA(AK)_PF2(PAG).pdf
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