Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2020 Jan-Mar;20(1):27-37.
doi: 10.4103/jips.jips_327_19. Epub 2020 Jan 27.

Accuracy of an intraoral digital impression: A review

Affiliations
Review

Accuracy of an intraoral digital impression: A review

Kanchan Aswani et al. J Indian Prosthodont Soc. 2020 Jan-Mar.

Abstract

Intraoral scanners (IOSs) are used for capturing the direct optical impressions in dentistry. The development of three-dimensional technology and the trend of increasing the use of IOSs in dental office routine lead to the need to assess the accuracy of intraoral digital impressions. The aim of this review was to assess the accuracy of the different IOS and the effect of different variables on the accuracy outcome. An electronic search using PubMed with specific keywords to obtain potential references for review. A search of MEDLINE (PubMed) identified 507 articles. After title and abstract screening, 412 articles were excluded for not meeting the inclusion criteria and discarding duplicate references. Ninety-five articles were followed for full screening; only 24 articles were included in the final analysis. The studies indicated a variable outcome of the different IOS systems. While the accuracy of IOS systems appears to be promising and comparable to conventional methods, they are still vulnerable to inaccuracies.

Keywords: Accuracy; digital impression; intraoral scanner; optical impression.

PubMed Disclaimer

Conflict of interest statement

There are no conflicts of interest.

Similar articles

Cited by

References

    1. Kim RJ, Park JM, Shim JS. Accuracy of 9 intraoral scanners for complete-arch image acquisition: A qualitative and quantitative evaluation. J Prosthet Dent. 2018;120:895–9030. - PubMed
    1. Zimmermann M, Mehl A, Mörmann WH, Reich S. Intraoral scanning systems – A current overview. Int J Comput Dent. 2015;18:101–29. - PubMed
    1. Keul C, Stawarczyk B, Erdelt KJ, Beuer F, Edelhoff D, Güth JF. Fit of 4-unit FDPs made of zirconia and CoCr-alloy after chairside and labside digitalization – A laboratory study. Dent Mater. 2014;30:400–7. - PubMed
    1. Svanborg P, Skjerven H, Carlsson P, Eliasson A, Karlsson S, Ortorp A. Marginal and internal fit of cobalt-chromium fixed dental prostheses generated from digital and conventional impressions. Int J Dent. 2014;2014:1–9. - PMC - PubMed
    1. Ahrberg D, Lauer HC, Ahrberg M, Weigl P. Evaluation of fit and efficiency of CAD/CAM fabricated all-ceramic restorations based on direct and indirect digitalization: A double-blinded, randomized clinical trial. Clin Oral Investig. 2016;20:291–300. - PubMed