Defense Date


Document Type


Degree Name

Master of Science



First Advisor

Steven Lindauer

Second Advisor

Bhavna Shroff

Third Advisor

Al Best


Background: While efficacy of the Forsus appliance has been shown, there are disagreements on its mechanism for Class II correction. Class II studies have been criticized for ignoring potential differences in results based on differing vertical facial phenotypes. The purpose of this study was to better understand the effects of Class II correction using the Forsus appliance and relate changes during and at the completion of treatment to initial MP-SN angles. Materials and Methods: Records of 59 patients obtained at 4 different time points were examined retrospectively. ANOVA was used to describe the cephalometric changes and Pearson’s correlation tested for any relationship between patients’ pretreatment MP-SN angle and other selected measures. Results/Conclusions: Class II correction was achieved by mesial movement of the mandibular dentition, differential mandibular growth, and clockwise rotation of the occlusal plane. There was no correlation between pre-treatment MP-SN angles and any selected cephalometric measure.


© The Author

Is Part Of

VCU University Archives

Is Part Of

VCU Theses and Dissertations

Date of Submission

May 2012

Included in

Dentistry Commons