title: [Tracing and measuring errors in the roentgenographic cephalometry].
abstract: In the present study, thirty cephalometric films which had been used in three different investigations using almost the same parameters were selected and divided into two groups. Twenty-three parameters in the first group and nine parameters in the second, which were used in two and three investigations respectively, were statistically compared. Paired t test was used in the first group and variance analysis in the second group. In conclusion, a lot of parameters exhibited statistically significant variability, while some of them were not.
authors.forename: A
authors.initials: A
authors.lastname: Erdem
authors.forename: I
authors.initials: I
authors.lastname: Ceylan
authors.forename: E
authors.initials: E
authors.lastname: Deniz
mesh_terms: D000704:Analysis of Variance; D002508:Cephalometry; D003951:Diagnostic Errors; D006801:Humans
vernacular_title: Röntgenografik sefalometrik çizim ve ölçüm hatalari.