Intra-examiner reliability of epidemiologic registrations of malocclusion

Intra-examiner consistency in the recording of single traits of malocclusion according to a previously described method was assessed by duplicate registrations on study models of 292 children. The level of agreement was expressed by the consistency ratio and the phi coefficient. A high level of consistency was obtained for most of the malocclusion traits, and it was concluded that the method employed is appropriate also for analyses of interrelations between these traits.