Compara o de medidas de diametros dentários em modelos obtidas por três diferentes métodos

In order to compare the measures for dental models analysis gotten from different tools (dry tips compass, digital caliper rule and a computer program), 20 dental models with a complete permanent dentition were selected. Each tooth was measured by one examiner, using the three methods. The measures were done in distinct moments and 20% of the sample was repeated. The t Student test for paired samples showed a significant difference between the measures using the dry tips compass, so they were excluded from the study. Although, the measures obtained with caliper rule and computer program showed strong correlation and did not differ significantly on repetition. The ANOVA ( =5%) did dot evidenced significant difference between the measures obtained, by groups of teeth, with caliper rule and digital method, which also presented excellent reproductibility, in opposite to the measures obtained with the dry tips compass.