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Distribution of bone regeneration in the defects of each group analyzed in microCT. Bone volume per tissue volume (BV/TV) and area of bone formation (BAr) did not indicate statistical significance (p < 0.05) between Circular (trephine) and Square (piezoelectric) groups in all time points; nor between 45-days and 75-days groups. Zero-day (control) groups showed statistical differences in comparison to 45-days and 75-days in both Circular and Square techniques in the analyzed parameters.
