ORIGINAL ARTICLE
Year : 2010  |  Volume : 2  |  Issue : 3  |  Page : 113-118

The effect of 17% EDTA and MTAD on smear layer removal and on erosion of root canal dentin when used as final rinse: An in vitro SEM study


1 Department of Conservative Dentistry and Endodontics, YCMM and RDF's Dental College, Ahmednagar, Maharashtra, India
2 Department of Conservative Dentistry and Endodontics, CSMSS Dental College, Aurangabad, Maharashtra, India
3 Department of Prosthodontics, CSMSS Dental College, Aurangabad, Maharashtra, India

Correspondence Address:
Vishal A Mahajan
Department of Conservative Dentistry and Endodontics, Y.C.M.M. and RDF's Dental College, Vadagaon Gupta, Tal. and Dist. Ahmednagar, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2231-0754.95282

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Background: The aim of the present study was to evaluate and compare the ability of a mixture of tetracycline isomer, citric acid and detergent (MTAD) and ethylene diamine tetra-acetic acid (EDTA) in removing the smear layer along with their effects on peritubular and intertubular dentinal structures by scanning electron microscopic (SEM) examination. Materials and Methods: Thirty recently extracted maxillary and mandibular single-rooted human teeth were divided into 3 groups and prepared to an apical size of 30. In Group 1, 2, and 3, MTAD, EDTA, and distilled water were used, respectively, as a final rinse solution to remove the smear layer. The specimens were subjected to SEM evaluation for the presence or absence of the smear layer and degree of erosion using a scoring system. Results: The result showed that MTAD shows better smear layer removing ability and does not significantly change the structure of dentinal tubules. Conclusion: MTAD is an efficient solution for the removal of the smear layer, especially in the apical third of root canals, and does not significantly change the structure of the dentinal tubules.


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