It is concluded that: 1) the subepithelial connective tissue graft procedure provides a satisfactory solution in the treatment of localized gingival recessions, and 2) citric acid demineralization does not affect the clinical outcome of the surgical technique.

ResumenEl objetivo de este trabajo es presentar a partir de la perspectiva de los niños y las niñas que presentan obesidad, algunas categorías identificadas de los contextos intrapersonales, familiares y escolares que están articulados con las prácticas de alimentación, el aumento de peso y algunos problemas que obstaculizan estilos de vida saludable, así como de los contextos socioculturales y agentes implicados en dichas prác-ticas. El diseño del estudio es cualitativo, con muestreo intensional. Se aplicaron 12 entrevistas semiestructuradas a niños y niñas que cursaban el 4.º y 5.º año de primaria, en escuelas localizadas en un medio urbano del área metropolitana de Monterrey, que presentaban obesidad infantil. Se encontró que diversos factores de los contextos de desarrollo de los niños y niñas han modificado significativamente los patrones alimentarios y de ejercicio físico, entre los que destacan las condiciones socioeconómicas, los problemas de organización de la familia, distribución de tareas e implicación de los padres como cuidadores primarios, aspectos socioculturales y la influencia de los medios de información que unidas a las condiciones de la vida moderna conducen a favorecer el consumo de alimentos industrializados y de alta densidad calórica. Los niños y niñas que viven con obesidad luchan contra un estigma que afecta su autoestima y que a la vez los excluye de algunas actividades y procesos de socialización en los entornos familiar, escolar y social. Es por ello importante que se formulen políticas sociales y modelos de intervención que contribuyan a estilos de vida saludables, y en este campo la labor del trabajador social puede ser muy importante. Palabras clave:Trabajo social y salud, obesidad infantil, patrones alimentarios regionales, prácticas alimentarias, necesidades de intervención en salud. AbstractThe objective of this paper is to present, from the perspective of obese boys and girls, some categories identified in intrapersonal, family and school contexts which are related to feeding practices, weight gain and some of the problems that make it difficult to have healthy lifestyles. In addition, the socio-cultural contexts and actors involved in such practices are analyzed. This qualitative study was designed with intentional sampling, 12 semi-structured interviews were undertaken with boys and girls enrolled in 4th and 5th grade who were obese, in an urban environment located in the metropolitan area of Monterrey. It was found that several factors of developing contexts of boys and girls have had a significant impact on their eating and exercise patterns. Some of them are socio-economic conditions, problems in family organization, task distribution and the engagement of parents as primary caregivers, socio-cultural factors and the influence of mass media, which combined with the conditions of modern life promote consumption of processed foods of high caloric density. Discourses show a stigma that affects their self-esteem and at the same time exclude them from some activities and proc...

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Abstract:Introduction: The local use of prolonged drug delivery in the oral cavity provides many advantages, i.e., it increases pharmacologic actions in the desired local site, allows smaller doses and reduces adverse effects. Pilocarpine is a cholinergic drug approved by the FDA for treating glandular hypofunction; however, the adverse effects associated with it limit its use. Objective: To evaluate cytotoxicity of films in adherent fibroblasts and their ability to release pilocarpine in vivo for a prolonged time in the oral cavity of diabetic rats and its effect on salivary flow.Methods: Chitosan and Hydroxypropylmethylcellulose (Methocel K4MCR) films were prepared in 1% acetic acid and pilocarpine was added under magnetic stirring. Cytotoxicity of films was evaluated in adherent fibroblasts HS27 and assessed by neutral red technique. The sialogogue effect of films was evaluated on the floor of the mouth of diabetic rats. Later, histopathological analysis was performed using hematoxylin and eosin and Masson's trichrome stains. Results: Films were biocompatible and had 96% cell viability. It was possible to increase stimulation of salivary flow in diabetic rats (6.36±0.987mg/hr) compared to the control group (0.5±0.06mg/hr). The histopathological analysis did not show inflammatory infiltrate in the area where films were placed. Conclusion: Films were biocompatible and had high cell viability. Also, they considerably increased salivary flow in diabetic rats, without triggering an inflammatory infiltrate in the area which indicates that it is a biocompatible product for sustained release and safe for pilocarpine administration.