This study evaluated the treatment response of children with Class III malocclusions treated with rapid maxillary expansion and protraction therapy. The sample included 15 patients aged between 7- 14 years. Protraction force of 600 to 800 gram was applied and the patients were treated until a 2 mm positive overjet had been attained. Radiographs were taken before treatment (T1), immediately after face mask treatment (T2). The results showed that the maxilla was protracted forward by 2.3mm. The mandible was rotated downward and backward, while the lower incisors were retroclined. The Class III malocclusion and concave facial profile of the subjects were mainly corrected by skeletal and dentoalveolar improvements in the sagittal direction and to some extent by vertical movement / clockwise rotation of the mandible. Thus, the present study proves that Rapid Maxillary Expansion along with Maxillary Protraction is a suitable treatment modality for early correction of Class III Malocclusion.
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2022: 6.012
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