RESUMO
Objetive: To compare in vitro bacterial adherence on teeth submitted to whitening with 50% ethanolic extract of Musa paradisiaca and 35% hydrogen peroxide. Material and Methods: The study was experimental and used 18 premolars that were grouped into: G1 (control), G2 (50% ethanol extract of Musa paradisiaca) and G3 (35% hydrogen peroxide). The teeth were then exposed to a Streptococcus mutans culture for 24 hours, followed by centrifugation in thioglycolate broth. A culture on trypticase soy agar was done with a 1 in 100 dilution, and after 48 hours colony forming units (CFU) were counted. Statistical analysis was performed using the ANOVA test, complemented by the Bonferroni post-hoc. Results: Bacterial adherence was 77x105 CFU/ml in Group 3 using 35% hydrogen peroxide, 40x105 CFU/ml in Group 2 using 50% ethanol extract of Musa paradisiaca, and 89x104 CFU/ml in Group 1 (control). The difference between the three groups was significant (p=0.000). Conclusion: Both whitening methods cause bacterial adherence to the tooth surface, although to a lower degree with Musa paradisiaca.eses.
Objetivo: Comparar la adherencia bacteriana in vitro en dientes sometidos a blanqueamiento con extracto etanólico de Musa paradisiaca al 50% y con peróxido de hidrógeno al 35%. Material y Métodos: Comparar la adherencia bacteriana in vitro en dientes sometidos a blanqueamiento con extracto etanólico de Musa paradisiaca al 50% y con peróxido de hidrógeno al 35%.Resultados: La adherencia bacteriana fue de 77x105 UFC/ml con el peróxido de hidrógeno al 35%, de 40x105 UFC/ml con el extracto etanólico de Musa paradisiaca al 50% y de 89x104 UFC/ml con el control. La diferencia fue significativa entre los tres grupos (p=0.000). Conclusión: Ambos métodos de blanqueamiento causan adherencia bacteriana en la superficie dental, siendo menor con Musa paradisiaca.
Assuntos
Humanos , Clareamento Dental/métodos , Aderência Bacteriana/efeitos dos fármacos , Musa/microbiologia , Peróxido de Hidrogênio/uso terapêutico , Peru , Streptococcus mutans/efeitos dos fármacos , Dente Pré-Molar , Técnicas In VitroRESUMO
Objective: To determine the levels of depression, anxiety, and stress in dentists working in the northern region of Peru in times of COV ID -19. Material and Methods: 310 dentists working in the northern region of Peru in times of COVID-19 were evaluated by means of an observational and cross-sectional study. Subjects were asked to give their informed consent and answer a virtual questionnaire containing 21 items based on the DASS-21 Scale that assesses depression, anxiety, and stress. A descriptive analysis was carried out with frequencies; for the variables of gender and years of work experience the Chi square test (p<0.05) was used. Results: It was found that 291 (93.87%) of the dentists suffered from some type of psychological disorder: stress (35.74%), anxiety (35.05%), depression (29.21%). Mild stress was the most prevalent accounting for 49.04% (51); mild depression with 45.88% (39), and moderate anxiety with 40.20% (41). A higher prevalence was found in females and in those dentists who had less than 5 years of work experience. Conclusion: 93.87% of dentists working in the northern region of Peru in times of COVID-19 presented some type of psychological disorder, a higher frequency of mild stress was found, followed by mild depression, and moderate anxiety.
Objetivo: Determinar los niveles de depresión, ansiedad y estrés en cirujanos dentistas que laboran en la región norte del Perú en tiempos de COVID-19. Material y Métodos: Se realizó un estudio observacional de corte transversal, evaluando a 310 cirujanos dentistas que laboran en la región norte del Perú en tiempos de COVID-19 y que respondieron un cuestionario virtual sobre la base de la Escala de Dass-21 que evalúa depresión, ansiedad y estrés y que contiene 21 ítems, previo consentimiento informado. Se realizó un análisis descriptivo con frecuencias y para las variables género y tiempo de servicio se empleó la Prueba Chi cuadrado (p<0.05). Resultados: Se encontró que 291 (93.87%) de cirujanos dentistas presentaron algún trastorno psicológico, de los cuales el 35.74% presentaron estrés; ansiedad el 35.05% o depresión el 29.21%; siendo mayor el estrés leve con el 49.04% (51); depresión leve el 45.88% (39) y ansiedad moderada el 40.20% (41), presentando un porcentaje mayor en mujeres y en aquellos cirujanos dentistas que laboran menos de 5 años. Conclusión: El 93.87% de los cirujanos dentistas que laboran en la región norte del Perú en tiempos de COVID-19, presentaron algún tipo de trastorno psicológico, se encontró mayor frecuencia de estrés leve, seguido de depresión leve y ansiedad moderada.
