In vitro evaluation of the microhardness of bovine enamel exposed to acid solutions after bleaching
Braz. oral res
; 25(6): 562-567, Nov.-Dec. 2011. tab
Article
en En
| LILACS
| ID: lil-608027
Biblioteca responsable:
BR1.1
ABSTRACT
Acid erosion is a superficial loss of enamel caused by chemical processes that do not involve bacteria. Intrinsic and extrinsic factors, such as the presence of acid substances in the oral cavity, may cause a pH reduction, thus potentially increasing acid erosion. The aim of this study was to evaluate the microhardness of bleached and unbleached bovine enamel after immersion in a soda beverage, artificial powder juice and hydrochloric acid. The results obtained for the variables of exposure time, acid solution and substrate condition (bleached or unbleached enamel) were statistically analyzed by the ANOVA and Tukey tests. It was concluded that a decrease in microhardness renders dental structures more susceptible to erosion and mineral loss, and that teeth left unbleached show higher values of microhardness compared to bleached teeth.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
LILACS
Asunto principal:
Blanqueamiento de Dientes
/
Ácidos
/
Esmalte Dental
/
Dureza
/
Peróxido de Hidrógeno
Tipo de estudio:
Evaluation_studies
Límite:
Animals
Idioma:
En
Revista:
Braz. oral res
Asunto de la revista:
ODONTOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Brasil