Johnston L E
Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor 48109-1078, USA.
Br J Orthod. 1996 May;23(2):93-102. doi: 10.1179/bjo.23.2.93.
A method of cephalometric analysis is presented in which molar and overjet corrections are seen as the algebraic sum of facial skeletal growth and tooth movement relative to basal bone. The steps of superimposition and measurement are described, and a means of summarizing these changes--the 'pitchfork diagram'--is suggested.