Examinando por Materia "Hipoclorito de sodio"

Mostrando 1 - 6 de 6

Acceso abierto
Antibacterial action of irrigating compounds using 5% sodium hypochlorite, 17% ethylenediaminetetraacetic acid and 2% chlorhexidine gluconate, against enterococcus faecalis culture strains through an in vitro study Lima-2022
(Universidad Privada Norbert Wiener, 2022-12-07) Salcedo Yanapa, Camila Ximena; Huamani Caquiamarca, Yuliana Esther
The main objective of this study was to evaluate the antibacterial action of the irrigant compounds Sodium Hypochlorite at 5%, Ethylenediaminetetraacetic Acid (EDTA) at 17%, and Chlorhexidine Gluconate at 2% against Enterococcus faecalis strains. This in vitro experimental study, cross-sectional, and prospective, included root canal irrigants and 15 wells per group in Petri plates inoculated with Enterococcus faecalis. To assess the antibacterial action, the agar diffusion method was used, and the samples were incubated at 37°C. After 24 hours, the bacterial inhibition zones were measured and recorded. Kruskal-Wallis test was used for statistical analysis. The results showed that EDTA at 17% had the highest antibacterial action against E. faecalis, presenting an inhibition zone of 25 mm, followed by Chlorhexidine Gluconate at 2% with an inhibition zone of 23 mm, and Sodium Hypochlorite at 5% with an inhibition zone of 11 mm. The study concluded that EDTA at 17% has significantly higher antibacterial action compared to Chlorhexidine Gluconate at 2%, followed by Sodium Hypochlorite at 5% against Enterococcus faecalis.
Acceso abierto
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.
Acceso abierto
“Evaluación de exposición por hipoclorito de sodio utilizados en desinfección de ambientes laborales 2021: revisión sistemática”
(Universidad Privada Norbert Wiener, 2021-08-06) Quispe Cusco, Jenny Lizeth; Ramos Jaco, Antonio Guillermo
Objetivo: Evaluar la exposición por hipoclorito de sodio utilizado en la desinfección de ambientes laborales 2021. Método: Descriptivo, analítico, sintético, no experimental. Población. Estuvo constituida por los artículos científicos, revistas científicas, libros y tesis publicadas e indexadas en las bases de datos científicos y que responden a publicaciones en idioma español, inglés, u otros idiomas. Resultados: De las 10 194 personas, el 9.9 % tuvieron exposición al hipoclorito de sodio y el 90.1 % no lo tuvieron. De 1 205 personas que tuvieron exposición al hipoclorito de sodio el 89.2 % no presentan asma y el 10.8 % si presentan asma. De 200 personas que tuvieron exposición al hipoclorito de sodio, el 89.0 % no presentan bronquitis y el 11.0 % presentan bronquitis. Conclusión: Del total de personas que laboran en la desinfección de ambientes laborales existe un elevado porcentaje de personas que no tuvieron exposición al hipoclorito de sodio, existe un elevado porcentaje de personas que no presentan asma a la exposición del hipoclorito de sodio, existen porcentajes similares en las personas que presentan y no presentan bronquitis a la exposición del hipoclorito de sodio.
Acceso abierto
Factores de riesgo toxicológico por exposición al uso de hipoclorito de sodio durante la pandemia en pobladores - distrito Santa Anita julio 2021
(Universidad Privada Norbert Wiener, 2021-08-11) Durand Andrade, Rosa María; Ramos Jaco, Antonio Guillermo
investigación el objetivo principal fue Evaluar los factores de riesgos toxicológicos por exposición al uso de Hipoclorito de sodio durante la pandemia, la Metodología que se utilizó es de método descriptivo, con enfoque cuantitativo deductivo de tipo de investigación aplicada, no experimental de corte transversal, realizada a la población del distrito de Santa Anita, por medio del instrumento que fue una encuesta, como resultado: el 67.71% de la población usa hipoclorito de sodio para la desinfección de diversas áreas, así mismo en la mayoría se desconoce la concentración que usa, el 69.71% refiere si usar protección al manipular el hipoclorito de sodio, donde el 41.71% usa guantes y mascarilla, el 38.57% refiere manifestar irritación de tejido y ojos, donde el 47.71% indica que las afecciones son leves. En conclusión el uso de hipoclorito de sodio asociado con la falta de conocimiento de la concentración, dilución, protección insuficiente, puede ocasionar daños
Acceso abierto
Invitro evaluation of the chemical solubility of calcium silicate materials: theracal lc ®, biodentine ® and mta
(Universidad Privada Norbert Wiener, 2023-04-05) Zevallos Meneses, Nicole Fabiola; Huamani Caquiamarca, Yuliana Esther
Objective: To determine the solubility degree of Theracal LC, Biodentine, and MTA in the presence of 2.5% sodium hypochlorite over a period of 30 minutes. Methodology: The study aims to assess and compare the solubility rates of three calcium silicate-based materials, Theracal LC, Biodentine, and MTA, when exposed to 2.5% sodium hypochlorite for 30 minutes. Results: The solubility of the materials will be evaluated by measuring their mass before and after immersion in the sodium hypochlorite solution for the specified time. Conclusion: The results will provide insights into the solubility behaviors of Theracal LC, MTA, and Biodentine when subjected to sodium hypochlorite, an important factor in clinical applications such as root canal treatments.
Acceso abierto
Shear strength comparing three pre-etching agents in tooth enamel in relation to adhesion, in vitro study, Lima-2022
(Universidad Privada Norbert Wiener, 2023-09-30) Alejos Nureña, Paola Rosario; Rojas Ortega, Raúl Antonio
The objective of this study was to 'Determine the shear strength of three enamel pre-etching agents in relation to adhesion.' An in vitro, pure experimental, cross-sectional, prospective, and comparative study was developed. The sample consisted of 30 dental pieces, divided into three groups: Group A: 10 samples with 37% phosphoric acid applied for 15 seconds; Group B: 10 samples with 5.25% sodium hypochlorite applied for 60 seconds; Group C: 10 samples with 5.25% sodium hypochlorite applied for 60 seconds + 37% phosphoric acid applied for 15 seconds. The samples were then subjected to the HTL certified universal testing machine, calibrated and validated, which provides approximately 95% confidence level. According to the ANOVA parametric test, significant differences (p < 0.05) were observed between the three groups. It was found that between 37% phosphoric acid for 15 seconds and 5.25% NaClO for 1 minute, a significant difference (p < 0.05) exists; between 37% phosphoric acid for 15 seconds and 5.25% NaClO + 37% phosphoric acid for 15 seconds, no significant difference (p > 0.05) was found; and between 5.25% NaClO for 1 minute and 5.25% NaClO + 37% phosphoric acid for 15 seconds, significant differences (p < 0.05) were observed. Conclusion: Shear strength exists in enamel deproteinized with 5.25% NaClO prior to etching with 37% phosphoric acid, resulting in a higher average of 33.489, median of 32.44, variance of 48.854, standard deviation of 6.9896, a minimum value of 22.01, and a maximum value of 46.61, demonstrating the increase in adhesion pattern.