Examinando por Autor "Gutierrez Duno, Ana Gabriela"

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    Efficacy of sodium hypochlorite at different concentrations and temperatures on the removal of agitated smear layer with a Navitip FX needle.
    (Universidad Privada Norbert Wiener, 2022-05-29) Gutierrez Duno, Ana Gabriela; Huamani Caquiamarca, Yuliana Esther
    Objective: To determine the efficacy of sodium hypochlorite at different concentrations and temperatures on the removal of dentin mud agitated with a Navitip FX needle. Methodology: Sixty single-rooted straight teeth were selected and divided into four groups according to the irrigation protocols. Group 1: 1ml of 1% NaOCl at 21ºC for 1 min + 1ml of 17% EDTA for 1 min; Group 2: 1ml of 1% NaOCl at 50ºC for 1 min + 1ml of 17% EDTA for 1 min; Group 3: 1ml of 3% NaOCl at 21ºC for 1 min + 1ml of 17% EDTA for 1 min; Group 4: 1ml of 3% NaOCl at 50ºC for 1 min + 1ml of 17% EDTA for 1 min. In all groups, NaOCl and EDTA were agitated with a Navitip FX needle. The teeth were examined under a scanning electron microscope to evaluate cleanliness in the coronal, middle, and apical thirds. The data were statistically analyzed using SPSS v20.0.0. Descriptive and inferential statistics were applied, and the Shapiro-Wilk test was used to assess the normality of the data. Results: No significant differences were found in the removal of the smear layer in the cervical and middle thirds, while in the apical third, 1% NaOCl heated to 50ºC was more effective (p = 0.0257). Conclusion: No significant differences were found in the removal of the smear layer when using 1% and 3% sodium hypochlorite at 21ºC and 50ºC.