Accuracy between intraoral and extraoral scanning: Three-dimensional deviation and effect of distance between implants from two scanning methods.

Autor:	Pereira ALC; Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande do Norte, Brazil., Segundo HVM; Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande do Norte, Brazil., Júnior LCA; Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande do Norte, Brazil., Germano AR; Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande do Norte, Brazil., Carreiro ADFP; Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
Jazyk:	angličtina
Zdroj:	Journal of Indian Prosthodontic Society [J Indian Prosthodont Soc] 2022 Jul-Sep; Vol. 22 (3), pp. 279-287.
DOI:	10.4103/jips.jips_108_22
Abstrakt:	Aim: Evaluate the accuracy between the intraoral and extraoral scanning regarding the three dimensional (3D) deviation and distances between the implants, through 2 scanning methods. Settings and Design: An in vitro study. Materials and Methods: An edentulous mandibular model was used to install four implants and abutments, recommending 6 distances between the implants. Scans were performed using an intraoral (SI) and extraoral (SE) scanner for each studied group: Scanning with the scan bodies (SB) and device (SD) (n = 10). The files were imported into a surface evaluation program to assess 3D deviations and measure distances between implants. Statistical Analysis: Precision was assessed as the difference between files (Kruskal-Wallis test), while trueness was assessed from the difference between scans, applying the Wilcoxon and Mann-Whitney test. Results: As for the 3D deviations, SI showed accuracy, for the faces and positions of the implants in relation to the SE, in both scanning methods (P < 0.05). Regarding the capture of distances between implants, the SD scan obtained better trueness than the SB group (P < 0.05). Conclusion: We concluded that the type and scanning methods used did not influence the 3D deviations, while for distances, scanning with the device had better trueness. Competing Interests: None
Databáze:	MEDLINE
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