Table 2

	Gender (male/female)	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).