Objective. The objective of this study was to quantify the release of flavonoids and fluoride in test tubes of conventional type II vitreous ionomer modified with propolis extract. Methods. Sixty units of analysis were used. The 2% propolis ethanolic extract was incorporated into a type II glass ionomer. To determine the release of flavonoids, the laboratory analyzed the concentration of quercetin per ml of solution, either distilled water or physiological solution, during a period of 5 days. Results. There was an initial release of 0.40 mg/ml of fluorine in physiological solution and 0.35 mg / ml of fluorine in distilled water, and a final release of 0 mg/ml of flavonoids and fluorine in physiological solution and of 0,18 mg/ml of fluorine in distilled water solution. Conclusions. The release of fluoride and flavonoids occurs in greater concentration in the first hours, decreasing as th...

Objetivo. El objetivo de este estudio fue cuantificar la liberación de flavonoides y flúor en probetas de ionómero vítreo convencional tipo II modificado con extracto de propóleo. Métodos. Fueron utilizadas 60 unidades de análisis. El extracto etanólico de propóleo al 2% fue incorporado a un ionómero vítreo tipo II. Para la determinación de la liberación de flavonoides el laboratorio analizó la concentración de quercetina por ml de solución, sea agua destilada o solución fisiológica durante un periodo de 5 días. Resultados. Hubo liberación inicial de 0,40 mg/ml de flúor en solución fisiológica y de 0,35 mg/ml de flúor en agua destilada, y una liberación final de 0 mg/ml de flavonoides y de flúor en solución fisiológica y de 0,18 mg/ml de flúor en solución de agua destilada. Conclusiones. La liberación de flúor y flavonoides se produce en mayor concentraciÃ...

Objectives: Identify the histological characteristics of bovine dentin using histological technique by decalcification with Masson's Trichrome staining. Materials and Methods: This was an observational and descriptive study using units of analysis. Bovine teeth were used, which were subjected to a decalcification technique and Masson's trichrome staining. Microscopic observation and registration of the structures was carried out. Results: In the microscopic observation of the teeth subjected to decalcification, dentin, predentin and the structural organization of the tubular and peritubular dentin were observed. The odontoblasts arranged in a palisade with the odontoblastic process included within the dentinal tubule and the periprocedural space. The presence of interglobular dentin is not observed in areas of coronary dentin. The histomorphological pattern corresponding to dentin-preden...

This literature review was carried out to approach the state of knowledge regarding the capacity of Candida Albicans to produce nitrosamines and how these are related to the possible malignancy of lesions in the oral cavity. Oral candidiasis (CO) is a frequent infection of the oral mucosa caused by fungi of the family Candida spp. These fungi are part of the usual oral flora but, due to different local and systemic factors, can produce superficial mycosis. Among the different species, Albicans is the most frequent in the oral cavity. It has a great variety of virulence factors, one of them the nitrosation capacity of nitrates and nitrites present in saliva that lately has been considered related to the malignization of mucosal lesions of the oral cavity and others such as the stomach.

El objetivo de esta revisión es presentar el estado del conocimiento respecto a la capacidad que tiene Candida albicans de producir nitrosaminas y de cómo estas se relacionan con la posible malignización de lesiones de la cavidad bucal. La candidiasis oral (CO) es una infección frecuente de la mucosa bucal provocada por hongos de la familia Candida spp. Estos hongos son integrantes de la flora bucal habitual, pero, por diferentes factores locales y sistémicos, pueden producir micosis superficiales. Entre las distintas especies, albicans, es la más frecuente en la cavidad bucal. Posee gran variedad de factores de virulencia, uno de ellos la capacidad de nitrosación de nitratos y nitritos presentes en saliva que últimamente se ha considerado relacionada a la malignización de lesiones mucosas de la cavidad bucal y otras como el estómago.