Effect of powder/liquid ratio of glass ionomer cements on flexural and shear bond strengths to dentin
Braz. j. oral sci
;
10(3): 204-207, Jul.-Sep. 2011. tab
Artículo
en Inglés
| LILACS, BBO
| ID: lil-725243
ABSTRACT
Aim:
This study evaluated the effect of varying the powder/liquid (P/L) ratio on the shear bond to dentin (SBS) and flexural strength (FS) of glass ionomer cements (GIC)s.Methods:
Three types of GICs (Fuji II, Fuji II LCi and Fuji IX GP) were mixed using the following P/L ratios 20% lower than the manufacturer's ratio, manufacturer's ratio, 20% higher than the manufacturer's ratio (9 groups). SBS (MPa) was evaluated and the mode of failure checked under stereomicroscope. FS (MPa), of the specimens (25×2×2mm) assessed using a universal testing machine at a crosshead speed of 1 mm/min. The data were subjected to two-way ANOVA and Tukey's test for analysis (p< 0.05).Results:
The highest SBS and FS (MPa) obtained for Fuji II, Fuji II LCi and Fuji IX were 6.12±2.11 and 16.96±2.73; 11.60±3.19 and 49.58±8.75; 7.39±2.77 and 20.32±2.09, respectively. The interaction between materials and P/L ratios had no significant effect on the properties tested in this study. Fuji II LCi exhibited significantly higher SBS and FS than the other two GICs in all P/L ratios.Conclusions:
No significant differences were observed between Fuji II and Fuji IX. Twenty percent variation in P/L ratio had no significant effect on SBS and FS of GICs.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Dentina
/
Resistencia Flexional
/
Cementos de Ionómero Vítreo
Idioma:
Inglés
Revista:
Braz. j. oral sci
Asunto de la revista:
Odontología
Año:
2011
Tipo del documento:
Artículo
País de afiliación:
Irán
Institución/País de afiliación:
Shahid Beheshti University of Medical Sciences/IR
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