Avaliação da concordância de medidas lineares horizontais e verticais obtidas em modelos digitais e em modelos reais

Abstract

Considering the advent of CAD/CAM technology as an evolutionary milestone in the history of Orthodontics and the need for clinical practice based on scientific evidence, the objective of this research was to evaluate the agreement of horizontal and vertical linear measurements obtained in digital models and directly in the mouth of patients. Twenty individuals with complete permanent dentition were used, which originated the two groups studied, with Group 1 formed by digital models and Group 2 formed by real models, represented by the mouth of the patients. Intermolar, interpremolar, intercanine, incisor cervico-incisal, canine cervico-incisal, and maxillary and mandibular premolar cervico-occlusal measurements were performed in the models studied. The real models were measured with a digital caliper. Digital models were measured with measurement tools in NemoCast Software. The two groups were measured by 2 operators, who presented ICC = 0.995, showing great agreement between the measurements in the two groups, which were statistically evaluated. For comparison between groups, the Bland-Altman test was performed, which showed agreement between digital measurements and real models. When comparing the groups, it was observed that there was no statistically significant difference (p>0.05), which shows that the digital models and real models were considered to be in agreement with each other. The digital models showed satisfactory accuracy in the evaluation of horizontal and vertical linear measurements, being in agreement with the respective real measurements obtained directly from the individuals' mouths.