Comparative radiopacity of four low-viscosity composites
Braz. j. oral sci
;
6(20): 1278-1282, Jan-Mar. 2007. ilus, tab
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-850525
ABSTRACT
The aim of this study was to evaluate the radiopacity of four commercially available low-viscosity composites. The lowviscosity composites used in this study were Natural Flow, Flow It, Filtek Flow and Protect Liner F. Five specimens of each material were made in stainless-steel ring moulds of 10 mm diameter and 2 mm height. One specimen of each material and a 10-step aluminium wedge were radiographed in an occlusal film. The reading of the optical density was performed in five different locations in each radiographed specimen. The net optical density was calculated, and then the mean values were obtained, and related with the equivalent thickness of aluminium. The radiopacities of each composite, in millimeters of aluminium were Flow It (3.24 ± 0.17); Filtek Flow (2.25 ± 0.17); Natural Flow (1.50 ± 0.13); Protect Liner F (<1 mm/Al). Flow It and Filtek Flow presented an acceptable radiopacity according to the ISO Standard 4049. Natural Flow and Protect Liner F did not supply the requirements for radiopacity, thus, these materials could be confounded with secondary caries in some clinical applications, such as restorations or cavity lining.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Radiografia Dentária
/
Absorciometria de Fóton
/
Resinas Compostas
Tipo de estudo:
Estudo diagnóstico
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2007
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Federal University of Pernambuco-UFPE/BR
/
UPE/BR
Similares
MEDLINE
...
LILACS
LIS