Twenty-four hour flexural and shear bond strengths of flowable light-cured composites: a comparison analysis using Weibull statistics.
By means of Weibull analysis, this study evaluated and compared the flexural strength and shear bond strength of flowable light-cured composites against those of conventional ones. Twenty specimens of each material were prepared for flexural and shear bond strength measurements. Specimens were measured after water storage at 37 degrees C for 24 hours. Three of four flowable composites showed significantly higher flexural strength than conventional ones, with Weibull moduli ranging between 6 and 14. With the presence of a bonding agent, the shear bond strength to enamel of both types was not different significantly (p=0.28), with Weibull moduli ranging between 4 and 9. In the selection of an excellent resin composite material, results of this study showed that a high, stable Weibull modulus value could be a sound indicator.
Tjandrawinata
Rosalina
R
Department of Dental Materials, Faculty of Dentistry, Trisakti University, Campus B, JI. Kyai Tapa 260, Jakarta 11440, Indonesia.
Irie
Masao
M
Suzuki
Kazuomi
K
D000180:Acrylic Resins / Q000737:chemistry* / Q000528:radiation effects; D000704:Analysis of Variance; D003188:Composite Resins / Q000737:chemistry* / Q000528:radiation effects; D018583:Pliability; D011140:Polyurethanes / Q000737:chemistry* / Q000528:radiation effects; D033081:Shear Strength; D013997:Time Factors
D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D011140:Polyurethanes; C111840:flowable hybrid composite