title: The effect of irrigating solutions on the apical sealing ability of MTA Fillapex and Adseal root canal sealers.
abstract: Background.Maximum sealing ability or adhesion of endodontic sealers can be achieved after effective removal of the smear layer. Endodontic irrigants assist in adequate removal of the smear layer, improving the retention mechanism. The aim of this study was to evaluate the effect of two different root canal irrigation solutions (5.25% NaOCl followed by 17% EDTA and QMix) on the apical sealing ability of two different root canal sealers (MTA Fillapex and Adseal).Methods.Forty-six single-canal teeth were divided into 4 experimental groups of 10 teeth each and a positive and negative group of 3 teeth each. The root canals were prepared using step-back technique. The teeth in groups 1 and 2 were irrigated with 5.25% NaOCl followed by 17% EDTA and the teeth in groups 3 and 4 were irrigated with QMix. Finally all the teeth were flushed with sterile saline and dried using paper points. Obturation was accomplished by gutta-percha using lateral condensation technique. MTA Fillapex sealer was used in groups 1 and 3 whereas Adseal was used in groups 2 and 4. Dye penetration method was used to evaluate apical leakage. Data were analyzed with Kruskal-Wallis and Mann-WhitneyUtests using SPSS 14. Statistical significance was set at P < 0.05.Results.Group 3 showed maximum amount of apical leakage (3.7±0.3 mm) whereas group 2 exhibited the least amount of apical leakage (2.1 ± 0.4 mm) among all the experimental groups. Significant differences were found in the amount of apical leakage between all the groups (P = 0.00001).Conclusion.Within the limitations of this study, 5.25% sodium hypochlorite followed by 17% EDTA and Adseal resulted in the best apical seal.
authors.affiliation: Senior Lecturer, Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Center, Kanpur, Uttar Pradesh, India.
authors.forename: Richa
authors.initials: R
authors.lastname: Singh
authors.affiliation: Professor and Head, Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Center, Kanpur, Uttar Pradesh, India.
authors.forename: Shankarappa
authors.initials: S
authors.lastname: Pushpa
authors.affiliation: Principal, Professor and Head, Department of Conservative Dentistry and Endodontics, Maharana Pratap Dental College, Kanpur, Uttar Pradesh, India.
authors.forename: Doraiswamy
authors.initials: D
authors.lastname: Arunagiri
authors.affiliation: Professor, Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Center, Kanpur, Uttar Pradesh, India.
authors.forename: Asheesh
authors.initials: A
authors.lastname: Sawhny
authors.affiliation: Reader, Department of Conservative Dentistry and Endodontics, Rama Dental College, Hospital and Research Center, Kanpur, Uttar Pradesh, India.
authors.forename: Abhinav
authors.initials: A
authors.lastname: Misra
authors.affiliation: Professor and Head, Department of Microbiology, Rama Medical College, Hospital and Research Center, Kanpur, Uttar Pradesh, India.
authors.forename: Ramamurthy
authors.initials: R
authors.lastname: Sujatha
keywords: Microleakage; root canal irrigants; root canal preparation; root canal sealants; sealing efficacy; smear layer