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  • Title: The effects of fixed and removable face masks on maxillary deficiencies in growing patients.
    Author: Jamilian A, Showkatbakhsh R, Taban T.
    Journal: Orthodontics (Chic.); 2012; 13(1):e37-43. PubMed ID: 22567652.
    Abstract:
    AIM: To compare the effects of two different types of face masks in the treatment of Class III malocclusions with maxillary deficiency in growing patients. METHODS: Forty-three patients (21 boys and 22 girls) with maxillary deficiencies were selected. Twenty-one patients (10 boys and 11 girls) with a mean age of 8.9 ± 1.4 years were treated with maxillary removable appliances and face masks. Twenty-two patients (10 boys and 12 girls) with a mean age of 9.3 ± 1.2 years were treated with maxillary fixed appliances and face masks. Lateral cephalograms obtained at the beginning and end of the study were analyzed. RESULTS: Paired t tests and Wilcoxon tests showed that SNA and ANB significantly increased in both groups. The Mann-Whitney test showed that there were no statistically significant differences between the two groups except for U1-SN, which increased by 6.2 ± 7.1 degrees in the removable face mask group and 11.1 ± 6.9 degrees in the fixed face mask group (P < .02). CONCLUSION: Both treatment modalities were successful in moving the maxilla forward. However, the maxillary incisors had more labial inclination in the fixed appliance group.
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