Effect of Finishing Procedures on the Surface Roughness of Resin-modified Glass-Ionomer Materials.
Compend Contin Educ Dent
; 38(7): e1-e4, 2017 Jul.
Article
en En
| MEDLINE
| ID: mdl-28727468
ABSTRACT
This study examined the influence of finishing procedures on the surface roughness of different formulations of resin-modified glass ionomers (RMGIs) available in capsules compared with standard resin composites (RCs). Disc samples of three RMGIs and two RCs were fabricated using a metal mold (5 mm x 1.5 mm). Samples were randomly divided into seven groups (N = 10) and subjected to finishing and polishing procedures using a combination of carbide or diamond burs, followed by either rubber points or aluminum-oxide discs. Three different regions of each sample were analyzed using a contact profilometer to determine the average roughness (Ra). The main surface roughness was calculated using a two-way analysis of variance (ANOVA) and the Bonferroni correction for multiple comparisons. A dual-stage combination of a fine carbide bur followed by the use of the finest two grits of aluminum-oxide discs was found to produce the smoothest finished and polished surface. the smoothest surfaces were found to be on the two RCs and one of the RMGIs.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Resinas Acrílicas
/
Dióxido de Silicio
/
Resinas Compuestas
/
Materiales Dentales
/
Pulido Dental
Idioma:
En
Revista:
Compend Contin Educ Dent
Año:
2017
Tipo del documento:
Article
País de afiliación:
Canadá