Browsing by Author "Cedillo Orellana, Sara Ivanna"

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Efectos del blanqueamiento dental sobre el tejido pulpar
(2016) Cedillo Orellana, Sara Ivanna; Álvarez Vásquez, José Luis
Tooth bleaching is a dynamic process that seeks the removal of stains from tooth structure by using chemicals, mainly hydrogen peroxide and its derivatives, which was first used by 1884 and up to date remains the main active chemical component of many products used for tooth whitening therapies, and is used in its pure or as a final product of the breakdown of other substances used for bleaching, such as carbamide peroxide. Upon contact with the dental tissues, hydrogen peroxide dissociates into free radicals such as reactive oxygen species, which can diffuse through the enamel, dentin and even reach the pulp tissue, causing undesirable effects such as tooth sensitivity, damage to the cellular components and altered blood flow; this deleterious effects are related to the number of sessions, product concentration, time of placement and type of activation (chemical, light, heat and laser).
Infección del seno maxilar por escherichia coli: revisión de la literatura y reporte de caso
(2015) Cazar Almache, Marcelo Enrique; Miranda Villasana, José Ernesto; Palacios Vivar, Diego Esteban; Cedillo Orellana, Sara Ivanna
The maxillary sinus foreign body is a frequent consequence of accidents in dental treatments. These unfortunate events are due to the close relationship of the root tips of posterior teeth relative to the floor of the maxillary sinus. Extruded endodontic materials can act essentially as foreign bodies and potentially can lead to various pathophysiological responses. Not always produce reaction, in some cases are asymptomatic, and kept only under observation. The microorganisms isolated in patients with sinusitis of odontogenic origin differ from non-odontogenic, its predominant by anaerobic bacteria. The present case refers to accidental displacement of gutta-percha cones to the maxillary sinus; together with the presence of communication oroantral allow entry and colonization of Escherichia coli, an aggressive and rare bacteria in this location. For therapeutic treatment we did an approach through the oroantral communication, and prescribe the sultamicilin as the antibiotic.