Abstract
Objective: The aim of this study is to evaluate the adhesion of an endodontic sealer (AHPlus in root canals after the use of different protocols of 17% EDTA and the use of intracanal medication (ICM) based on calcium hydroxide in aqueous vehicle. Material and Methods: For this, 72 single-rooted human teeth were instrumented up to #50 and divided into six groups (n = 12). Group 1: EDTA for 3 min; Group 2: 3 mL of EDTA + 3 min of EDTA; Group 3: 3 mL of EDTA + 3 min of EDTA + 30 seconds of ultrasonic agitation; Group 4: EDTA for 3 min + ICM; Group 5: 3 mL of EDTA + 3 min of EDTA + ICM; Group 6: 3 mL of EDTA + 3 min of EDTA + 30 seconds of ultrasonic agitation + ICM. The root canals were filled with endodontic sealer after each protocol and after 7 days they were prepared to the push-out test. The data were analyzed using ANOVA two factors (p < 0.05). Results: It was observed no statistically difference in bond strength in the 3 different 17% EDTA protocols. However, the use of ICM increased significantly the resistance adhesion. Conclusion: Intracanal medication based on calcium hydroxide improved the bond strength of AHPlus to dentin walls, regardless of the EDTA protocol.KeywordsCalcium hydroxide; EDTA; Dentin.
Highlights
C omplete removal of the pulp and aggressive agents through the mechanical, physicochemical and medications are extremely important to achieve endodontic success [1]
Some studies have shown that the presence of residues of calcium hydroxide in the canals and dentinal tubules may affect the penetration of sealers within them and hinder the desired sealing in the filling [10,11]
ANOVA two factors (ANOVA 2) was used to test hypothesis of equality in the groups according to bond strength values obtained among different Ethylenediaminetetraacetic acid (EDTA) protocols and presence or absence of calcium hydroxide
Summary
C omplete removal of the pulp and aggressive agents through the mechanical, physicochemical and medications are extremely important to achieve endodontic success [1]. Root canal preparation contributes to the formation of smear layer, reducing dentin permeability, which can interfere in penetration of antimicrobial agents and adhesion of sealers, compromising the quality of the sealing of the canal [2]. Calcium hydroxide has been used as a intracanal medication for its broad antimicrobial potential. Some studies have shown that the presence of residues of calcium hydroxide in the canals and dentinal tubules may affect the penetration of sealers within them and hinder the desired sealing in the filling [10,11]. Type of irrigant and depth of penetration of the irrigant are factors that can affect the removal of calcium hydroxide. This study hypothesizes that bond strength of Epoxy sealer AHPlus, can be changed by varying EDTA protocols and with using intracanal calcium hydroxide medication in aqueous vehicle
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
