Current Oral Health Reports

, Volume 4, Issue 3, pp 209–214 | Cite as

Accuracy and Reliability of Intraoral Scanners: Are They the Better Option?

  • Kamal EbeidEmail author
  • Tarek Salah
  • Shereen Nossair
Dental Restorative Materials (M Özcan, Section Editor)
Part of the following topical collections:
  1. Topical Collection on Dental Restorative Materials


Purpose of Review

The aim was to compare the accuracy of digital intraoral impressions with conventional impressions on the fabrication of different types of restorations. This study also compared the accuracy, reliability, and ease of use of different types of intraoral scanners available and correlated the results with the different scanning technologies.

Recent Findings

Digital impressions offer the same level of accuracy as conventional impressions regarding fabrication of crowns, fixed dental prostheses (FDPs), implant-supported crowns, and short-span FDPs with marginal gap values within the clinically acceptable range (<120 μm). However, for full-arch restorations, conventional impressions result in better accuracy.


Further enhancements needs to be undertaken regarding intraoral scanners to improve its accuracy regarding fabrication of full-arch restorations. Further in vivo studies evaluating the accuracy of intraoral digital impressions on the fabrication of a wider range of restorations such as inlays, veneers, and full-arch restoration need to be conducted.


CAD/CAM Digital dentistry Marginal gap Intraoral scanners Digital impressions 


Compliance with Ethical Standards

Conflict of Interest

All authors declare that they have no conflict of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Department of Prosthodontics, Propaedeutics and Dental Materials, School of DentistryChristian-Albrechts UniversityKielGermany
  2. 2.Department of Fixed Prosthodontics, Faculty of DentistryAin Shams UniversityCairoEgypt
  3. 3.Department of Fixed Prosthodontics, Faculty of DentistryFuture UniversityNew CairoEgypt

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