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Table 2 Means and standard deviation of contraction stress (MPa)

From: Evaluation of the flexural resistance and stress contraction of a silorane-based composite submitted to different protocols of polymerization

Photoactivation Protocol Group 1 Group 2
Filtek Z350 Filtek Silorane
I, High continuous intensity 10.5 ± 1.27 Aa 15.1 ± 1.29 Aab
II, Continuous medium intensity 5.9 ± 1.64 Aab 16.4 ± 3.88 Ba
III, Continuous low intensity 6.9 ± 1.24 Aab 11.4 ± 2.10 Ab
IV, Pulse delay with 1-min interval 8.8 ± 1.30 Aab 17.0 ± 2.67 Ba
V, Pulse delay with 3-min interval 5.1 ± 1.95 Ab 16.30 ± 3.33 Ba
  1. Means followed by a different capital letter on the same line or different lowercase letter in the same column are statistically different (p < 0.05).