Alt-RAMEC Protocol and Face-Mask for Treatment of Class 3 non-growing patients: Prospective clinical radiographic study

Objectives: Objectives: Treatment of Class 3 malocclusion is a challenge. It is best to treat it at growing stage. The objective of this study is to evaluate the efficient of Maxillary protraction after the use of Alt-Ramec protocol for treatment of skeletal Class 3 non-growing patients.
Methods: Materials and methods: The sample consisted of 10 patients treated with alternate rapid maxillary expansions and constrictions (Alt-RAMEC) protocol and face-mask. CBCT assessment of skeletal changes analyzed at T0 (before the treatment) and T1 (after the treatment). The significant differences between T0 and T1 were assessed with paired t test (p < 0.05).
Results: Results: Sagittal measurements of the maxilla SNA, ANB and Co-A showed significant improvements (p < 0.01) with protraction of A-point. Significant improvements were recorded at overjet. Measures of the horizontal dimensions sutural, intermolar and intermaxillary widths recorded significant variations (p < 0.001).
Conclusions: Conclusion: It is possible to open the circum-maxillary sutures with alternate palatal expansions and constrictions of the maxilla. Alt-RAMEC protocol induces an adequate distraction of sutures and to protract the midface complex in class 3 non-growing patients.