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ORIGINAL RESEARCH Table of Contents   
Year : 2015  |  Volume : 26  |  Issue : 5  |  Page : 520-523
Effectiveness of different formulations of Endo-PTC to promote root canal cleaning

1 Department of Health, School of Dentistry, Feira de Santana State University (UEFS), Feira de Santana, Brazil
2 Bahia Federal University (UFBA), Campinas State University (UNICAMP), Campinas - SP, Brazil
3 Department of Oral Radiology, Campinas State University (UNICAMP), Campinas - SP, Brazil
4 Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias - RJ, Brazil

Correspondence Address:
Emmanuel João Nogueira Leal Silva
Department of Endodontics, Grande Rio University (UNIGRANRIO), Duque de Caxias - RJ
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-9290.172079

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Context: Endo-PTC are used during endodontic treatment; however, until now no study evaluated the cleaning of dentin walls after use of different Endo-PTC formulations. Aims: The aim of this study was to assess qualitatively, by means of scanning electron microscopy (SEM) images, the cleaning of dentin walls of root canals after chemomechanical preparation (CMP) using Endo-PTC cream and Endo-PTC light associated to 2.5% sodium hypochlorite and 17% ethylenediamine tetraacetate (EDTA). Materials and Methods: Forty single-rooted human maxillary central incisors with straight canals and fully formed apex were selected. The specimens were randomly divided into four groups depending on the type of Endo-PTC and the final rinse with 17% EDTA. After CMP, all specimens were sectioned and processed for observation of the apical thirds by using SEM. Three calibrated evaluators attributed scores to each specimen. Statistical Analysis Used: The differences between irrigation protocols were analyzed with Kruskal-Wallis test followed by Bonferroni adjustment for multiple comparisons. The significance level was set at α = 0.05. Results: The use of Endo-PTC cream or Endo-PTC light did not influence the smear-layer (SL) removal (P > 0.05). When EDTA were used, it was obtained the best cleaning results with no significant difference between the substances (P < 0.05). Conclusions: It can be concluded that EDTA is essential to promote SL removal which was not affected by the type of Endo-PTC formulation.

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