Evaluation of the efect of EDTA, EGTA and CDTA on dentin adhesiveness and microleakage with different root canal sealers

Brazilian Dental Journal

Manoel D. Sousa-neto²  Jarbas Gonçalves Passarinho-neto²  Jacy Ribeiro Carvalho-júnior²  Antonio M. Cruz-filho²  Jesus D. Pécora¹  Paulo César Saquy² 

[1] ,University of Ribeirão Preto Faculty of Dentistry Ribeirão Preto SP ,Brazil

关键词: endodontics;    physico-chemical properties;    root canal sealers;    endodontia;    propriedades físico-quimicas;    cimentos obturadores dos canais radiculares;   

DOI  :  10.1590/S0103-64402002000200009

来源: SciELO

【 摘 要 】

The effect of chelating solutions EDTA, EGTA and CDTA on human dentin adhesiveness and microleakage with 4 sealers (Sealer 26, Sealapex, N-Rickert and Endofill) was evaluated in vitro. Whether or not there was a mathematical correlation between the tests of adhesiveness and microleakage was also evaluated. A total of eighty maxillary and mandibular molars were used to test adhesiveness. After wearing of the occlusal surface to obtain a flat surface, the sealer was placed with an aluminum cylinder (10 mm x 6 mm). Adhesiveness was evaluated with a 4444 Instron universal testing machine. Microleakage was evaluated in 160 maxillary canines after root canal instrumentation, obturation and clearing. The penetration of India ink in the apical region was measured with a measurescope. The teeth were divided into 4 groups: group 1, distilled water; group 2, EDTA; group 3, EGTA; group 4, CDTA. Sealer 26 and EDTA had the best results (p<0.01) for adhesiveness and microleakage. There was no correlation between the test for adhesiveness and microleakage.

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