title: Evaluation of the effect of MTAD in comparison with EDTA when employed as the final rinse on the shear bond strength of three endodontic sealers to dentine.
abstract: The purpose of the study was to evaluate the effect of MTAD in comparison with EDTA as a final rinse on the shear bond strength of Kerr, Apexit and AH plus. Dentine surfaces of 135 extracted human non-carious maxillary premolars were divided into three groups (n = 45). Groups I and II were conditioned with 1.3% NaOCl for 20 min, followed by a final rinse of 17% EDTA for 1 min and MTAD for 5 min respectively. Group III was treated with distilled water. Each group was further divided into three subgroups (n = 15). Subgroup 1: Kerr, Subgroup 2: Apexit and Subgroup 3: AH plus. Three-millimetre-long sections of polyethylene tubes were filled with freshly mixed sealer and placed on the dentine surfaces. The bonding between the sealer and dentine surface was evaluated using shear bond testing. The values were statistically evaluated using one way anova followed by Tukey's test. Significant difference was found among the bond strength of the sealers and irrigating regimes. AH plus showed superior bond strength among the tested sealers, when EDTA was employed as the final rinse (P < 0.05). MTAD as a final rinse affected the bond strength of AH plus and Apexit, which were significantly lower than the control group.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Meenakshi Ammal Dental College, Chennai, India. hi_gopikrishna@hotmail.com
authors.forename: Velayutham
authors.initials: V
authors.lastname: Gopikrishna
authors.forename: Nagendrababu
authors.initials: N
authors.lastname: Venkateshbabu
authors.forename: Jogikalmat
authors.initials: J
authors.lastname: Krithikadatta
authors.forename: Deivanayagam
authors.initials: D
authors.lastname: Kandaswamy
mesh_terms: D002126:Calcium Hydroxide / Q000737:chemistry; D002614:Chelating Agents / Q000737:chemistry*; D019343:Citric Acid / Q000737:chemistry*; D001840:Dental Bonding; D003799:Dental Stress Analysis / Q000295:instrumentation; D003804:Dentin / Q000648:ultrastructure*; D004318:Doxycycline / Q000737:chemistry*; D004492:Edetic Acid / Q000737:chemistry*; D004853:Epoxy Resins / Q000737:chemistry; D006801:Humans; D006813:Humidity; D008422:Materials Testing; D011136:Polysorbates / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000737:chemistry*; D033081:Shear Strength; D012973:Sodium Hypochlorite / Q000737:chemistry; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry
chemical_list: C074418:Apexit; D002614:Chelating Agents; D004853:Epoxy Resins; C475043:MTAD (intracanal irrigant); D011136:Polysorbates; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D015035:Zinc Oxide-Eugenol Cement; C534916:epoxy resin-based root canal sealer; D019343:Citric Acid; C076543:Kerr Pulp Canal Sealer; D004492:Edetic Acid; D012973:Sodium Hypochlorite; D004318:Doxycycline; D002126:Calcium Hydroxide