Comparison of four modes of fracture toughness testing for dental composites.

Engineering & Materials Science

• Dental composites 100%
• Fracture toughness 53%
• Torsional stress 34%
• Testing 30%
• Crack propagation 14%
• Analysis of variance (ANOVA) 8%
• Crack tips 8%
• Crack initiation 8%
• Geometry 5%
• Composite materials 4%

Chemical Compounds

• Fracture Toughness 67%
• Torsion 35%
• Composite Material 29%
• Tension 16%
• Rod Like Crystal 16%
• Crack Initiation 13%
• Crack Propagation 11%
• Surface 2%

Medicine & Life Sciences

• Tooth 43%
• Analysis of Variance 9%
• Research Personnel 8%
• Growth 6%