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. 2014 Feb;6(1):85-8.
Epub 2014 Feb 26.

The effect of four different irrigating solutions on the shear bond strength of endodontic sealer to dentin - An In-vitro study

J Ravikumar  1 , V Bhavana  2 , Chandrashekar Thatimatla  3 , Satyanarayana Gajjarapu  4 , S Ganesh Kumar Reddy  5 , B Rahul Reddy  6
Affiliations

The effect of four different irrigating solutions on the shear bond strength of endodontic sealer to dentin - An In-vitro study

J Ravikumar et al. J Int Oral Health. 2014 Feb.

Abstract

Background: To evaluate the effect of EDTA, Maleic acid, Citric acid and MTAD Irrigating Solutions on the shear bond Strength of A-H plus sealer.

Materials & methods: Forty mandibular single rooted premolar teeth with straight roots were taken, decoronated and instrumented using Protaper rotary instruments to size #F3, 0.09 taper, at the working length, with 3 mL of 2.6% sodium hypochlorite in between irrigation. The teeth were divided into 4 groups and final irrigation was done using NaOCl/EDTA:Group 1(Positive Control group); NaOCl/Maleic acid: Group2; NaOCl/Citric acid: Group 3; NaOCl/MTAD: Group 4. Obturation was done using Obtura II thermoplasticized technique with AH Plus sealer. Each root section was then subjected to a compressive load via a universal testing machine, to measure the push out bond strength.

Results: The data was collected and submitted to statistical analysis by One way ANOVA test, and Group 2: NaOCl/Maleic acid showed greater bond strength (6.542+/_ 1.12 MPa) than other groups.

Conclusion: Removal of smear layer with Maleic acid as a final rinse enhanced the adhesive ability of A-H plus sealer, followed by EDTA, Citric acid and MTAD. A final rinse with MTAD might have a negative effect on the bonding ability of resin-based A-H plus sealer. How to cite the article: Ravikumar J, Bhavana V, Thatimatla C, Gajjarapu S, Reddy SG, Reddy BR. The effect of four different irrigating solutions on the shear bond strength of endodontic sealer to dentin - An In-vitro study. J Int Oral Health 2014;6(1):85-8.

Keywords: A-H plus sealer; MTAD; bond strength; irrigation; maleic acid.

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Conflict of interest statement

Conflict of Interest: None

Figures

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Figure 1: Final irrigation with MTAD.
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Figure 2: Root section subjected to compressive load.
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Figure 3: Graph representing mean values of bond strengths.
See this image and copyright information in PMC

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