CO2 laser improves 45S5 bioglass interaction with dentin.
J Dent Res
; 90(2): 246-50, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-21084716
ABSTRACT
Bioglass 45S5 is a bioactive glass that can create a layer of calcium-phosphate crystals on mineralized hard tissues. In this study, 45S5 bioglass was mixed with phosphoric acid and irradiated with CO(2) laser and examined as a possible aid in the treatment of dentin hypersensitivity. The dentinal surface modified by the aforementioned technique was chemically and micro-morphologically examined with a field emission scanning electron microscope (FE-SEM) equipped with an energy-dispersive x-ray spectroscope (EDS), and the crystalline structures of the examined dentinal surfaces were examined by x-ray diffraction (XRD). Moreover, the mechanical properties of the newly formed layer were examined by nanoindentation. The results showed that 45S5 bioglass could occlude the dentinal tubule orifices with calcium-phosphate crystals. The application of CO(2) laser potentially improved the mechanical organization of these crystals.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cerâmica
/
Dentina
/
Sensibilidade da Dentina
/
Lasers de Gás
/
Dessensibilizantes Dentinários
Limite:
Humans
Idioma:
En
Revista:
J Dent Res
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Japão