Reliability of a digital system for models measurements in BBO grading: A pilot study.

Autor:	Miranda PMB; Universidade Federal Fluminense, Mestrado em Ortodontia (Niterói/RJ, Brazil)., Fernandes LQP; Universidade do Estado do Rio de Janeiro, Doutorado em Ortodontia (Rio de Janeiro/RJ, Brazil)., Sevillano MGC; Universidade do Estado do Rio de Janeiro, Doutorado em Ortodontia (Rio de Janeiro/RJ, Brazil)., Carvalho FAR; Universidade do Estado do Rio de Janeiro, Doutorado em Ortodontia (Rio de Janeiro/RJ, Brazil)., Capelli Junior J; Universidade do Estado do Rio de Janeiro, Doutorado em Ortodontia (Rio de Janeiro/RJ, Brazil).
Jazyk:	angličtina
Zdroj:	Dental press journal of orthodontics [Dental Press J Orthod] 2022 Feb 28; Vol. 27 (1), pp. e2219388. Date of Electronic Publication: 2022 Feb 28 (Print Publication: 2022).
DOI:	10.1590/2177-6709.27.1.e2219388.oar
Abstrakt:	Introduction: Currently, no method is considered effective for the evaluation of digital models in the Certification Examination of the Brazilian Board of Orthodontics (BBO), considering the parameters of the currently used manual method. Objective: Thus, the aim of this study is to verify the reliability of an evaluation method for digital models that could be used in the BBO exam, compared to the gold standard. Methods: Measurements were performed by five previously calibrated examiners. Samples of ten sets of plaster models of the final phase of orthodontic treatment were measured using a manual method (Objective Grading System, OGS). These models were digitized using a 3D scanner and exported to Geomagic Qualify software, in which the measurements were made with the proposed digital method. These measurements were repeated using five models, after fifteen days. The intra-examiner performance with this method was analyzed with a paired t-test, whereas the inter-examiner analysis was carried out with analysis of variance and Tukey's test. To compare the manual and digital methods, a paired t-test and Pearson's correlation analysis were performed. Results: A statistically significant difference was found. The results showed that, when compared to the manual method, the digital method was effective in measuring the OGS in four of the seven variables studied: Marginal Ridge, Overjet, Occlusal Contact, and Interproximal Contact. The variables Alignment, BL inclination, and Occlusal Relationship showed a great amount of dispersion in the findings. Conclusion: Further studies are needed to develop an adequate digital methodology that can be used for all OGS variables.
Databáze:	MEDLINE
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