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Table 7 Comparison of cortical bone ratio by administration period in A and B group

From: Evaluation of mandibular cortical bone ratio on computed tomography images in patients taking bisphosphonates

Group Administration period Mean SD Significance
A < 4 years 37.9 7.0 0.807
≥ 4 years 36.6 6.7
B < 4 years 26.6 4.5 0.630
≥ 4 years 28.8 5.9
  1. A: patients with MRONJ
  2. B: patients taking BP without MRONJ
  3. *Significant at the level of P < 0.05