The purpose of the study was to evaluate the marginal leakage of three adhesive systems in Class V resin composite restorations. Two adhesive systems containing acidic primers: Clearfil SE Bond (CSEB) and Etch & Prime 3.0 (E&P), were compared with a conventional water-based primer: Scotchbond Multipurpose Plus (SBMP). Class V cavities were made at the cementum-enamel junction of extracted human molars, which were then divided between three groups. One of the adhesive systems was applied to each group following manufacturers' instructions. Composite restorations were placed, light cured for 40 s, and polished. Specimens were then immersed in a solution of 2% basic fuchsin dye for 24 h. Longitudinal sections were obtained and studied with a stereomicroscope for assessment of the microleakage according to the degree of dye penetration (scale of 0 -3). Data were analyzed by Kruskal-Wallis one-way ANOVA, Mann-Whitney tests, and the Wilcoxon matched-pairs signed rank test. Two specimens for each group were analyzed by scanningelectron microscopy (SEM). Bonded interfaces of dentin were also examined by transmissionelectron microscopy (TEM). On enamel, there were no significant differences between the three groups. On dentin, CSEB showed the lowest dye penetration values among the three adhesive systems. SEM and TEM studies showed hybrid layer and resin tag formations in all groups.
The return to face-to-face post-quarantine in the Facultad de Odontología, Universidad Nacional de Córdoba was possible thanks to the participation of each of the members of your community pieces of a fundamental gear for the daily functioning of the institution. Student participation through volunteering alongside the program Compromiso Social Estudiantil, played a prominent role during the Sars Cov2 pandemic, for its collaboration with society in immunization campaigns, testing center and participation in logistics for the application of preventive measures in the Institution to prevent the spread of the virus
Enseñanza curricular en el Grado de Medicina. ¿Adaptación al examen MIR? Beneficios de Traqueostomía temprana en pacientes con traumatismo craneoencefálico severo Creencias religiosas y motivación para estudiar medicina en una universidad pública Progressive ageing of working population in a southern Spain reference hospital ¿Existe estabilidad LDL entre dos dosis en pacientes que usan iPCSK9? Aplicación de la ingeniería tisular en la Enfermedad de Crohn perianal Adenoma suprarrenal izquierdo como causa de un hiperaldosteronismo primario Hernia de hiato como causa de enfermedad por reflujo gastroesofágico. Reporte de un caso Rectorragia: una presentación clínica infrecuente de cordoma sacro Enfermedad tromboembólica venosa y cáncer: una asociación frecuente Seguridad del paciente Fosfomicina trometamol: una alternativa eficaz en la profilaxis antibiótica de la biopsia transrectal de próstata Cartas al editor Historia, conmemoraciones y aniversarios ACTUALIDAD M É D I C A www.actualidadmedica.es Revista editada por: Actualidad Médica incluída en Latindex , Índices CSIC y Google Scholar Publicación cuatrimestral (3 números al año) © 2019. Actualidad Médica Reservados todos los derechos. El contenido de la presente publicación no puede ser reproducido, ni transmitido por ningún procedimiento electrónico o mecánico, incluyendo fotocopia, grabación magnética, ni registrado por ningún sistema de recuperación de información, en ninguna forma, ni por ningún medio, sin la previa autorización por escrito del titular de los derechos de explotación de la misma. Actualidad Médica, a los efectos previstos en el artículo 32.1 párrafo segundo del vigente TRLPI, se opone de forma expresa al uso parcial o total de las páginas de Actualidad Médica con el propósito de elaborar resúmenes de prensa con fines comerciales. Cualquier forma de reproducción, distribución, comunicación pública o transformación de esta obra sólo puede ser realizada con la autorización de sus titulares, salvo excepción prevista por la ley.
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