The effects of face mask and tongue appliance on maxillary deficiency in growing patients: a randomized clinical trial.

Objectives: The purpose of this randomized trial study was to compare the effects of facemask and Tongue appliance in treatment of Class III malocclusion with maxillary deficiency in growing patients.

Materials & Methods: 45 patients (22 males, 23 females) with maxillary deficiency were selected and randomly assigned to 2 groups. 22 patients (10 boys, 12 girls) with the mean age of 9.