Dentin bond strength of fluoride-releasing materials
Related Experiment Video
Updated: Oct 24, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
F García-Godoy1, M Rodríguez, E Barbería
1Department of Pediatric Dentistry, University of Texas Health Science Center at San Antonio 78284-7888, USA.
Purpose:
To evaluate the shear bond strength to dentin of fluoride-releasing materials.
Materials And Methods:
Human, noncarious extracted permanent molars stored in distilled water were used. Flat buccal and lingual dentin surfaces were ground wet on 600-grit silicon carbide paper. The teeth were then distributed at random into three groups of 8 teeth (16 surfaces) each: Group 1: Compoglass; Group 2: Fuji II LC; Group 3: Dyract. Cylindrical samples of the materials were prepared in plastic molds and bonded to the dentin surface according to the manufacturers' instructions. All samples were placed in distilled water for 24 hours, thermocycled for 500 cycles in distilled water at 6 degrees C and 60 degrees C and sheared with an Instron at a crosshead speed of 0.5 mm/minute.
Results:
In MPa: Group 1: 16.29 +/- 5.35; Group 2: 15.42 +/- 4.77; Group 3: 15.33 +/- 6.96. ANOVA revealed that there was no statistically significant difference between the groups. Fracture patterns, examined with the SEM, revealed material cohesive failures for all groups.
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