Analysis of panoramic cephalometrics using s skeletal cephalostat.

A panoramic head positioning device, the S.C., was tested for magnification production of radiographs and for repositioning. Ten skeletal Class I dentulous skulls with uniform metal markers were examined. The purpose was to see if a skeletal analysis could be obtained from panoramic radiographs. Basal skeletal magnification varied anatomically both vertically and horizontally, but the magnification percentages and their ranges, for the most part, were calculable. The few exceptions were believed due to lack of proper alignment of the S.C. and the General Electric Panelipse. Proper alignment could also correct the right to left asymmetrical magnification differences. Means and standard errors from 290 skeletal measurements were calculated and could serve as standards for skeletal analysis using panoramic cephalometrics.