Age at surgery
(M years [SD])
Duration of
orthodontic treatment
(M months [SD])
Period between surgery and
completion of the questionnaire
(M months [SD])
DO 10/5 17.5 (2.3) 28.7 (7.4)c 24.8 (19)a
CONV 5/5 17.8 (2.6) 18.4 (5.9)c 24.4 (11)b

aAfter the primary surgery with insertion of the distractors.
bAfter the surgical procedure.
cUnpaired t-test, states P < 0.05 between patients of DO and CONV groups.
M (SD) = mean (standard deviation).