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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