efectos de la corrosión en el sellado marginal de la interfase diente-amalgama: un estudio in vitro effects of corrosion in the marginal sealing of the tooth-amalgam inferface: an in vitro study

efectos de la corrosión en el sellado marginal de la interfase diente-amalgama: un estudio in vitro effects of corrosion in the marginal sealing of the tooth-amalgam inferface: an in vitro study

;Marizoila Díaz;Karla Padrón;Robert Ramírez;Gladys Velazco;Eduvigis Solórzano
nature genetics 2008 Vol. 45 pp. 0-
187
daz2008revistaefectos

Abstract

OBJETIVO: evaluar la interfase diente-amalgama en restauraciones de alto contenido de cobre corroídas in Vitro. MÉTODOS: Se utilizaron 20 premolares sanos, restaurados con amalgamas, que fueron observados al microscopio electrónico de barrido previo y posteriormente a un proceso de corrosión inducido con solución de Cloruro de Sodio y Ácido Acético, durante 11 semanas. RESULTADOS: El 80% de las brechas de la interfase medidas del ángulo mesiovestibular y el 85 % del punto medio vestibular oclusal aumentaron, con un P=0,022 y P=0,006 respectivamente. CONCLUSIONES: De esta manera, bajo las condiciones de un estudio in Vitro, se evidencia que la corrosión influye negativamente en la capacidad de autosellado de la amalgama de alto contenido de cobre
OBJECTIVE: to evaluate the tooth-amalgam interface in restorations with high copper content corroded in vitro. METHODS: 20 sound premolars restored with amalgam were used. They were observed on the previous scanning electronic microscope and later on they were subjected to a corrosion process induced with a solution of sodium chloride and acetic acid for 11 weeks. RESULTS: 80 % of the gaps of the interface measured from the mesiovestibular angle and 85 % of the occlusal vestibular middle point increased, with P=0.022 and P=0.006, respectively. CONCLUSIONS: This way, under the conditions of an in vitro study, it was proved that corrosion influences negatively on the self-sealing capacity of the amalgam with high copper content

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