Area Non-atrophic
mandibles
Atrophic
mandibles
Mean (SD),
mm
Mean (SD),
mm
MF righta 12.1 (4.27) 8.44 (2.81)
MF lefta 11.9 (5.03) 8.25 (3.89)

aStatistically significant at level P < 0.05, t-test, Welch's correction.
MF = mandibular foramen; SD = standard deviation.