The effect of digital impressions on the marginal seal of full ceramic crowns: A systemic Paper

Amaal Altabeeb; Eyiman  Alshaybani; Marwa Elhtab

doi:10.54361/LJMR.19.1.07

Authors

Amaal Khalleefah Altabeeb Faculty of Dentistry, University of Zawia. Author
Eyiman Abdulhakim Alshaybani Faculty of Dentistry, University of Zawia Author
Marwa Mawulud Elhtab Faculty of Dentistry, University of Zawia Author

DOI:

https://doi.org/10.54361/LJMR.19.1.07

Keywords:

impression, intra oral scanner, 3Dimaging, all ceramic restoration, marginal seal

Abstract

Purpose: A group of three-dimensional imaging techniques have been introduced and these techniques have revolutionized dentistry in general and dental prosthodontics in particular. This has led to an increase in the accuracy of traditional restorations, in addition to providing a virtual framework that includes all treatment strategies, from designing and manufacturing restorations digitally. On the other hand, the challenges related to obtaining oral impressions using traditional methods were highlighted through the use of intraoral scanners (IOSs), as this technology is considered more comfortable and convenient for patients and doctors(1).

Aim: This scientific paper aims to conduct a review of digital impression systems, their advantages, and disadvantages, as well as to evaluate the importance of the marginal seal of full ceramic crowns and to study the impact of digital impressions on them.

Methodology: original scientintific papers on effect of digital impressions on the marginal seal of full ceramic crowns published in the MEDLINE.

Results: A generation change occurs when the manufacturer upgrades an existing scanner (previous generation) in terms of both hardware and software, creating a new version (new generation model). The study concluded that new generations of intraoral scanner hardware and software can significantly increase the accuracy of the devices when it comes to scanning an entire dental arch, while all versions produce a clinically acceptable digital impression of a single abutment.

Conclusion: There is no unison on what nominate a clinically acceptable maximum margin gap width. Furthermore, there is high widely between the systems and methodologies within the different studies which making it difficult to achieve direct comparison between the results of the academicals works. Based on the results of this systematic review all studies appear to indicate a predictable margin gap within or near clinically acceptable thresholds.

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