Examinando por Materia "Corrosion"

Mostrando 1 - 4 de 4

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Corrosion of surgical instruments due to the use of common water vs distilled water
(Universidad Privada Norbert Wiener, 1905-07-09) Castillo Sánchez, Rosa María; Gómez Gonzales, Walter Edgar
Objective: Determine if the corrosion of surgical instruments is produced by the use of common water vs. distilled water. Materials and Methods: Systematic Reviews are an observational and retrospective research design, which synthesizes the results of multiple primary investigations. They are an essential part of evidence-based nursing due to their rigorous methodology, identifying relevant studies to answer specific questions of clinical practice. Results: In the final selection, 13 articles were chosen, we found that 31% (4) correspond to Spain, 14% (2) correspond to Colombia and Chile, with 7% (1) Cuba, Mexico, Peru were found. , Venezuela and Brazil respectively. 69% were experimental studies from the countries of Spain, Peru, Mexico, Colombia, Venezuela and Chile. With 31% we have cross-sectional studies belonging to Brazil, Chile, Spain, and Cuba. Of the total number of articles analyzed, 80% concluded that plain water causes corrosion in surgical instruments. It was evident in the reviewed research that stainless steel instruments should not be subjected to cleaning, disinfection and sterilization processes, whose dilution component is common water, nor should they be immersed in a physiological salt solution. Prolonged contact and immersion in the solution causes corrosion pitting and forms stress corrosion cracking. Conclusion: It is recommended to use distilled water to avoid corrosion of surgical instruments, especially for final rinsing, after cleaning and disinfection.
Acceso abierto
Effective interventions to prevent corrosion of surgical instruments
(Universidad Privada Norbert Wiener, 2018-11-04) Cabello Huerta, Erica Yovana; Pacheco Delgado, Carmen Reyna; Pretell Aguilar, Rosa Maria
Objective: Systematize the evidence on effective interventions to prevent corrosion of surgical instruments. Materials and Method: Systematic reviews are an observational and retrospective research design that synthesizes the results of multiple primary studies. Results: Of the total 10 systematically reviewed articles, 100% (10/10) demonstrate that effective interventions in care prevent the corrosion of surgical instruments; 50% (5/10) is mainly due to the care of the instruments in cleaning and disinfection procedures. Likewise, the other 50% (5/10) of the reviewed articles consider that the most corrosion-resistant stainless steels are martensitic stainless steel with mono and multilayer coating and austenitic steel. Conclusions: Of the 10 reviewed articles, 5 show that performing effective interventions in cleaning and disinfection procedures of surgical instruments prevents corrosion; likewise, 5 out of 10 articles refer that austenitic and martensitic steel used in the manufacturing of surgical instruments are resistant to corrosion.
Acceso abierto
Efficacy of equipment and furniture surface disinfectants in reducing contamination and preventing infections
(Universidad Privada Norbert Wiener, 1905-07-09) Lindo Véliz, Maribel Lilia; Rosas Cayetano, Jackie Myrian; Gómez Gonzales, Walter Edgar
Objective: Determine the effectiveness of surface disinfectants on equipment and furniture in reducing contamination and preventing infections. Materials and Methods: Systematic Reviews are an experimental quantitative research design, the population is made up of the bibliographic review of 4 scientific articles published and indexed in scientific databases, all of them are of high quality. Results: In the systematic review, the comparison study of hypochlorite against quaternary ammonium, hydrogen peroxide, povidone-iodine, 4% chlorhexidine is observed, hypochlorite showing superior disinfection action on surfaces. In the second article reviewed, the disinfectant effectiveness of 70% alcohol is demonstrated when applied directly to contaminated surfaces, observing a microbial reduction. From the third article, it is observed that hypochlorous acid is 100% effective on surfaces. From the fourth article, it is concluded that hydrogen peroxide and acetic acid are effective for cleaning surfaces. Conclusions: The reviewed articles show that sodium hypochlorite showed superior action in disinfecting furniture surfaces compared to 70% alcohol, quaternary ammonium, hydrogen peroxide, hypochlorous acid, peracetic acid, but it is necessary to consider its toxicity and corrosion during the use.
Acceso abierto
Evaluación de la corrosión en los arcos metálicos de ortodoncia Cromo-Níquel y Níquel Titanio sometidos a dos bebidas isotónicas
(Universidad Privada Norbert Wiener, 2024-10-31) Granda Córdova, Luis Amado; Rojas Ortega, Raúl Antonio
El estudio desarrollado tuvo como finalidad evaluar la corrosión en los arcos metálicos de ortodoncia Cromo Níquel y Níquel Titanio sometidos a dos bebidas isotónicas. La metodología empleada en el estudio fue de tipo experimental, prospectiva y analítica donde se consideró como población el grupo de arcos de ortodoncia de níquel titanio y cromo níquel disponible en el mercado nacional. Se utilizó fórmula para determinar el número de arcos ortodónticos para los 6 grupos utilizados, con un muestreo no probabilístico por conveniencia. Tomándose como criterios de inclusión arcos que sean solo de material Cromo Níquel, que sean solo de material Níquel Titanio y sellados de fábrica. La técnica empleada fue la observación directa Se hará el registro inicial del peso de los arcos sobre la balanza analítica, luego se anotó la hora del momento de la inmersión. Para determinar si los datos presentan distribución normal o no, para ello se empleó el método de Kolmogorov-Smirnov, debido a que aplica en casos donde l número de datos es mayor o igual a 50 (n≥50). Se hizo uso de la prueba de Anova para el análisis de varianza con la verificación previa de la normalidad con la prueba de Shapiro Wilk donde se consideró el 5% de significancia. En los resultados se encontró el arco metálico de ortodoncia Níquel Titanio (NiTi) cuando fue sometido a Sporade y Gatorade no presentó diferencia significativa con un p-valor =0.375 (p>0.05). Respecto al arco metálico Cromo Titanio (NiTi) cuando fue sometido a Sporade y Gatorade no presentó diferencia significativa con un p-valor =0.589 (p>0.05).Se concluyó que existen en los seis grupos diferencias significativas (p=0,00) al comparar el grado de corrosión en los arcos metálicos de ortodoncia Cromo-Níquel y Níquel Titanio sometidos a dos bebidas isotónicas.