Implant digital impression accuracy using extraoral scanners: a three-dimensional analysis

Author(s)

Grazielle Franco Gomes ^[1] ; Mónica Estefanía Tinajero Aroni ^[2] ; Lucas Portela Oliveira ^[3] ; João Neudenir Arioli Filho ^[4] ; Carolina Mollo Binda ^[5] ; Francisco de Assis Mollo Júnior ^[6]

Affiliation

^[1] São Paulo State University. School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[2] São Paulo State University. School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[3] São Paulo State University. School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[4] São Paulo State University. School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

^[5] University Center of Araraquara. Dental School. Department of Health Sciences - Brasil

^[6] São Paulo State University. School of Dentistry. Department of Dental Materials and Prosthodontics - Brasil

• Document type: Journal article
• Source: Braz. J. Oral Sci.; v. 22, 2023-08-14.

Abstract

Aim To analyze the accuracy of extraoral systems (Ceramill Map400+, AutoScan-DS200+, and E2) in full implant-prosthetic rehabilitation three-dimensionally. Methods A metallic edentulous maxilla with four implants was digitalized by a contact scanner (MDX-40 - Roland, control) and used as a control image to compare with other images generated by three laboratory scanners (10 samples per group). Letters identified all the four components: A and D angled 45º, and B and C parallel. The BioCAD software exported the images (.STL) to compare and verify deviations of the analogs on the X, Y, and Z axes. The nonparametric Kruskal-Wallis test and the two-way ANOVA on ranks with a post hoc Tukey test analyzed the data with 5% significance. Results No statistical differences were observed in the accuracy between the extraoral scanners (p=0.0806). However, when analyzing only the components, component D was more accurate when scanned with Ceramill Map400+ compared with AutoScan DS200+ (p<0.001) and with E2 (p=0.002). Conclusions All extraoral systems assessed showed digitalization accuracy but with more deviations in angled implants. The Ceramill Map400+ scanner showed the best results for the digital impression of a complete arch. (AU)

• FAPESP's process: 19/22509-9 - Three-dimensional analysis in digital impressions: is there precision in laboratory systems?
• Grantee: Grazielle Franco Gomes
• Support Opportunities: Scholarships in Brazil - Scientific Initiation