Fig. 5From: Maxillary protraction with rapid maxillary expansion and facemask versus skeletal anchorage with mini-implants in class III patients: a non-randomized clinical trialTime of treatment according to the groups. Height of the rectangle represents the first and third quartiles; the line that sections the rectangle represents the median; the semi-straight lines link quartiles 1 and 3 to the minimum and maximum values. **Mann-Whitney testBack to article page