Influence of Augmented Reality Appliances on Tooth Preparation Designs-An In Vitro Study.

Autor: Obispo C; Department of Medicine and Medical Specialties, Faculty of Health Sciences, Universidad Alcalá de Henares, 28801 Madrid, Spain.; Faculty of Dentistry, Universidad Alfonso X el Sabio, 28801 Madrid, Spain., Gragera T; Faculty of Dentistry, Universidad Alfonso X el Sabio, 28801 Madrid, Spain., Giovannini G; Faculty of Dentistry, Universidad Alfonso X el Sabio, 28801 Madrid, Spain., Zubizarreta-Macho Á; Faculty of Dentistry, Universidad Alfonso X el Sabio, 28801 Madrid, Spain.; Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, 37008 Salamanca, Spain., Aragoneses Lamas JM; Faculty of Dentistry, Universidad Alfonso X el Sabio, 28801 Madrid, Spain.; Department of Dentistry, Universidad Federico Henríquez y Carvajal, Santo Domingo 11114, Dominican Republic.
Jazyk: angličtina
Zdroj: Journal of personalized medicine [J Pers Med] 2023 Dec 28; Vol. 14 (1). Date of Electronic Publication: 2023 Dec 28.
DOI: 10.3390/jpm14010037
Abstrakt: The aim of this work was to analyze and compare the tooth structure removal between a free-hand preparation technique and a computer-aided preparation technique using an augmented reality appliance for complete-crowns preparation designs and "root mean square" (RMS) alignment value. Ten upper teeth representatives of all dental sectors were selected from a generic model library as "Standard Tessellation Language" (STL-1) digital files and 3D-printed in an anatomically based acrylic resin experimental model. Then these were randomly assigned to the following tooth preparation techniques: Group A: free-hand preparation technique ( n = 5) (FHT) and Group B: computer-aided preparation technique using an augmented reality appliance ( n = 5) (AR). Experimental models were submitted to a digital impression through an intraoral scan and (STL-2) uploaded into a reverse engineering morphometric software to measure the volumetric reduction in the planned and performed tooth structure (mm 3 ) and RMS using the Student's t -test and the Mann-Whitney non-parametric test. Statistically significant differences were observed between the volumetric reduction in the planned and performed tooth structure (mm 3 ) of the AR and FHT study groups ( p = 0.0001). Moreover, statistically significant differences were observed between the RMS of the planned and performed tooth preparations in both the AR and FHT study groups ( p = 0.0005). The augmented reality appliance provides a more conservative and predictable complete-crowns preparation design than the free-hand preparation technique.
Databáze: MEDLINE
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