RESULTS All patients finished treatment with Class I molar relationships, normal overjet (2–4 mm) and normal overbite (2–4 mm). There was some relapse during the posttreatment phase. Dental Changes The treated group showed a statistically insignificant 0.4 mm of maxillary molar intrusion during treatment, whereas the controls exhibited 2.9 mm of eruption (Table 1). During the posttreatment ...