Condylar position and extraction treatment.

By means of corrected tomography, the positions of the condyles in patients who had undergone four-premolar extraction treatment (20 edgewise and 7 Begg) were compared with the condylar positions of patients who had not yet received orthodontic treatment. No significant between-group differences in condylar position were noted. In addition, the relationship between bite depth and condylar position was examined and no significant correlation was found. Thus, as performed in this study, condylar position was unrelated to extraction treatment and to bite depth.