Tracing Error with Björk's Mandibular Structures
The tracing errors associated with the structures used in Björk's method of mandibular superimposition are investigated using multiple tracings of fifty lateral cephalometric radiographs. The horizontal error levels were much less than the vertical, midline structures more reliable than bilateral structures, and the lower third molar tooth germ more reliable than the inferior dental canal.Abstract
Contributor Notes
Paul A. Cook is Lecturer/Hon. and Senior Registrar in Orthodontics at the University of Leeds, England. He holds B.Ch.D. (Dental Surgery) and M.D.Sc. (Orthodontics) from the University of Leeds; and L.D.S.R.C.S, F.D.S.R.C.P.S. and D.Orth.R.C.S
John F. Gravely is Senior Lecturer/Hon. and Consultant in Orthodontics at the University of Leeds, England. He holds L.D.S. from the University of Manchester, M.Ch.D. (orthodontics) from the University of Leeds, and D. Orth. R.C.S. from the Royal College of Surgeons, England