Avaliação da concordância de medidas lineares horizontais e verticais obtidas nos modelos impressos e diretamente na boca dos respectivos pacientes

Abstract

Every day more new materials are discovered and new methods to process them are identified. Since the advent of 3D printing, customization has become a viable reality in the dental field. The objective of this research was to evaluate the concordance of horizontal and vertical linear measurements obtained in the printed models and directly in the mouth of the respective patients. The sample consisted of 20 individuals with complete permanent dentition, which originated the two groups studied, with Group 1 formed by printed models and Group 2 formed by measurements obtained directly in the mouth of the respective patients. Measurements were made between intermolars, interpremolars, intercanines, cervico-incisal of incisors, cervico-incisal of canines, cervico-occlusal of upper and lower premolars in the studied models. Measurements obtained directly from the patients' mouths were performed using a digital caliper. The printed models were acquired on an Anycubic Photon S 3D Printer and measured with a digital caliper. 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 measurements on printed models and directly in the mouth of the respective patients. When comparing the groups, it was observed that there was no statistically significant difference (p>0.05), which shows that the printed models were considered reliable for use in Orthodontics. Thus, the measurements performed on the printed models were consistent with the respective measurements obtained directly in the mouth of the individuals.