Avaliação clínica da precisão de registos interoclusais digitais

Abstract

Objective: To assess the clinical precision of the static intermaxillay record in the intermaxillary cuspation position obtained with the intra-oral scanner compared with the intermaxillary records obtained with foiling paper and bite registration polyvinylsiloxane. Materiais e métodos: A cross-sectional observational study was carried out, aimed at students of the Master’s in Dental Medicine (MIMD) at the Faculty of Dental Medicine of the Catholic University of Portugal (FMD-UCP) A intermaxillary record of each individual was obtained with articulating paper (Articulating Paper 40μm, Henry Schein®, EUA), bite registration silicone (Occlufast Rock®, Zhermack, EUA) and the intra-oral scanner TRIOS® 4 (3 Shape, Dinamarca). Five main points of contact were identified in each jaw for each type of register and posteriorly the distribuition of this contact points was analysed. The comparasion of the agreement betwenn registers was settled. Data analysis was performed using IBM's SPSS®. Resultados: The sample is composed of 10 students from the Integrated Master’s in Dental Medicine. The distribuition of contacts betwenn different registers follows the same pattern, with the posterior gathering the majority of contact points. In the analysis of agreement between the different records, the values were: Articulating paper and silicone, 68,57% (K=0,32); Paper and scanner light bite, 69,29% (K=0,33); Paper and scanner maximum intercuspation, 73,57% (K=0,42); Silicone and scanner light bite, 70,71% (K=0,36); Silicone and scanner MI, 75,71% (K=0,47); Scanner light bite and scanner MI, 75,71% (K=0,47). Conclusões: The intermaxillay record obtained with the intra-oral scanner is as valid as the record obtained with the articulating paper and with polyvynylsiloxane. The intermaxillary record obtained with the intra-oral scanner identifies most of the contact points that the conventional methods also identify when the record is made in maximum intercuspation. The intra-oral scanner is a precise method to obtain the occlusal record.

Date of Award	26 Jul 2023
Original language	Portuguese
Awarding Institution	Universidade Católica Portuguesa
Supervisor	Patrícia Fonseca (Supervisor) & André Correia (Co-Supervisor)