title: Accurate arch-discrepancy measurements.
abstract: A new technique for accurately measuring tooth-to-arch-length discrepancies according to the ideal arch form is discussed. The armamentarium for making these measurements is explained, and the technique is demonstrated. Clearly, this is an important part of orthodontic diagnosis, and there is a need for greater accuracy than that which techniques of the past have made possible.
mesh_terms: D003724:Dental Arch / Q000033:anatomy & histology*; D006801:Humans; D008310:Malocclusion / Q000175:diagnosis / Q000473:pathology; D009811:Odontometry; D014070:Tooth / Q000033:anatomy & histology*