Effect of Scanner Type and Scan Body Location on the Accuracy of Mandibular Complete-Arch Digital Implant Scans: An In Vitro Study.

Cakmak, Gülce; Yilmaz, Hakan; Treviño Santos, Alejandro; Kökat, Ali Murat; Yilmaz, Burak (2022). Effect of Scanner Type and Scan Body Location on the Accuracy of Mandibular Complete-Arch Digital Implant Scans: An In Vitro Study. Journal of prosthodontics, 31(5), pp. 419-426. Wiley 10.1111/jopr.13418

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PURPOSE

To compare the accuracy (trueness and precision) of scans of a newly introduced intraoral scanner (IOS) (Virtuo Vivo) and a widely used IOS (Trios 3) to a laboratory scanner (LBS) (Cares 7 SERIES) for 6 implants placed in an edentulous mandible, and to investigate the effect of scan body location on trueness.

MATERIAL AND METHODS

Scanbodies were tightened on 6 implants placed in an edentulous polymethylmethacrylate mandibular model. An industrial scanner was utilized to generate a master reference model STL file. Three different scanners were used to scan the model (2 IOSs and 1 LBS), and the scans (n = 10) were exported into STL files. Best-fitting algorithm was used to superimpose test scans over the MRM-STL (nominal). ANOVA and Tukey HSD tests were performed to analyze the data (α = 0.05).

RESULTS

The distance deviations in Car7-LBS scans were the highest (p < 0.001), whereas those in Tri-IOS scans were the lowest (p < 0.001). Vir-IOS had lower angular deviations than those of Tri-IOS (p = 0.031). In Vir-IOS scans, SB5 had higher distance deviations than SB2 (p = 0.029) and SB3 (p = 0.044). In Car7-LBS scans, SB1 had higher distance deviations than SB3 (p = 0.015) and SB5 (p = 0.005). In Tri-IOS scans, SB1 had higher mean distance deviations than SB2 and SB5 (p = 0.005). Vir-IOS had lower precision than Car7-LBS (distance deviation data) (p = 0.01). No difference was found among scanners for the precision of angular deviation data (p = 0.840).

CONCLUSION

When trueness and precision were considered, distance and angular deviations depended on the scanner type. None of the scanners outperformed others in accuracy considering all distance and angular deviations. Scan body location affected only the trueness (distance deviations).

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Cakmak, Gülce, Yilmaz, Burak

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1532-849X

Publisher:

Wiley

Language:

English

Submitter:

Lena Augé

Date Deposited:

04 Jan 2022 08:15

Last Modified:

31 Jul 2023 02:48

Publisher DOI:

10.1111/jopr.13418

PubMed ID:

34453466

Uncontrolled Keywords:

Accuracy implant intraoral scanner mandible precision trueness

BORIS DOI:

10.48350/163091

URI:

https://boris.unibe.ch/id/eprint/163091

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