title: [Computer aided photocclusion analysis of traumatic occlusion].
abstract: OBJECTIVE
  This study was designed to analyse traumatic occlusion quantitatively.
  
  
  METHODS
  A photocclusion method using computer image processing technique is described, the processing software provide the occlusal contact area, contact point numbers, contact force, maximum stress, and average stress distribution of all teeth by tables and figures.
  
  
  RESULTS
  (1) The traumatic contact area was larger and contact force was greater than that of the normal occlusal contact. (2) There was an irregularity force distribution from molars to incisal area. (3) The symmetrical distribution of contact forces and contact areas were destroyed.
  
  
  CONCLUSIONS
  Computer aided-photocclusion method can be used to diagnose traumatic occlusion.
authors.affiliation: School of Stomatology, Beijing Medical University, Beijing 100081.
authors.forename: S
authors.initials: S
authors.lastname: Zhou
authors.forename: J
authors.initials: J
authors.lastname: Xu
authors.forename: J
authors.initials: J
authors.lastname: Tan
mesh_terms: D003769:Dental Occlusion, Traumatic / Q000175:diagnosis*; D003936:Diagnosis, Computer-Assisted; D006801:Humans