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Table 1 Bond strength mean values (MPa) and surface roughness (Ra) mean values (µm) and standard deviations () in the experimental groups

From: Evaluation of shear strength of brackets with different dental composites and enamel roughness

Composite Shear bond strength Surface roughness
Initial Ra (µm) Final Ra (µm)
Transbond XT 12.57 (2.76) A 0.21 (0.04) Aa 0.33 (0.02) Ab
Filtek Z100 12.72 (2.65) A 0.22 (0.03) Aa 0.32 (0.02) Ab
Filtek P90 6.13 (2.02) C 0.21 (0.03) Aa 0.31 (0.01) Ab
Venus Diamond 9.31 (1.36) B 0.22 (0.04) Aa 0.31 (0.01) Ab
  1. Different uppercase letters in column and lowercase letters in row for surface roughness indicate statistically significant difference (p > 0.05)