[1] Indiana Univ, Sch Dent, Dept Orthodont & Oral Facial Genet, Indianapolis, IN 46204 USA
[2] Natl Res Ctr, Oral & Dent Res Div, Cairo, Egypt
[3] Indiana Univ Sch Med, Dept Biostat, Indianapolis, IN 46204 USA
[4] Hamdan Bin Mohammed Coll Dent Med, Dept Orthodont, Dubai, U Arab Emirates
[5] Indiana Univ, Dept Comp Sci, Indianapolis, IN 46204 USA