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Long-term stability of dentin biomodification by the primary VLC fractions: (A) modulus of elasticity (MPa) of 35 fractions assessed at 0 (immediate), 6, and 12 months post treatment; (B) modulus of elasticity grouped by DP (see Figure 1) and assessed at 0, 6, and 12 months post treatment. The apparent modulus of elasticity (MPa) of each group was normalized to the activity of the pine bark extract.
