Avaliação da concordância de medidas lineares horizontais e verticais obtidas em modelos digitais e obtidas diretamente da boca dos pacientes

Abstract

The constant technological advancements have been allowing the development of new diagnoses methods, transforming the practice of odontology with time. With the emergence and popularization of the CAD/CAM technology, that is being used in the orthodontic field, the evaluation of this method's accuracy is important to validate it. The objective of this research was to evaluate the agreement between linear vertical and horizontal measurements obtained in digital models and the ones obtained directly in the oral cavity of the patient. The sample was composed of 10 individuals with complete permanent dentition, and two groups of measurements were obtained. Group 1 is formed of the measurements obtained on the digital models and Group 2 is formed of the measurements obtained directly on the oral structures of the patient. Were made measurements intermolars, interpremolars, intercanines, (horizontal measurements) incisor cervico-incisal, canine cervico-incisal, and premolar cervico-occlusal, (vertical measurements) on both superior and inferior dental arcs. The measurements made directly on the individuals were made with an autoclavable bow divider (ICE®, Cajamar, Brazil), and the measurements of the digital models were obtained on the software 3Shape 3D Vierwer (version 2014.1, 3Shape ViewerTM, Lino Lakes, MN, United States of America). Both types of measures were made by two operators presenting ICC =0,99, on the test of reliability intra examiners. For the comparison between the groups was used the Bland-Altman test. In the comparison of the groups was observed that there is no statistically significant difference (p>0,05), revealing agreement between the measurements on digital models and the measurements made on the oral cavity of the patients.