Digital Versus Conventional Impressions in Fixed Prosthodontics: A Review

Purpose To conduct a systematic review to evaluate the evidence of possible benefits and accuracy of digital impression techniques vs. conventional impression techniques. Materials and Methods Reports of digital impression techniques versus conventional impression techniques were systematically sear...

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Published inJournal of prosthodontics Vol. 27; no. 1; pp. 35 - 41
Main Authors Ahlholm, Pekka, Sipilä, Kirsi, Vallittu, Pekka, Jakonen, Minna, Kotiranta, Ulla
Format Journal Article
LanguageEnglish
Published United States Wiley Subscription Services, Inc 01.01.2018
Subjects
Accuracy
CAD/CAM
conventional impression
Dental crowns
Dental prosthetics
Dental restorative materials
Dentistry
digital impression
impression accuracy
Prosthodontics
Systematic review
conventional impression
digital impression
CAD/CAM
impression accuracy
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Summary:Purpose To conduct a systematic review to evaluate the evidence of possible benefits and accuracy of digital impression techniques vs. conventional impression techniques. Materials and Methods Reports of digital impression techniques versus conventional impression techniques were systematically searched for in the following databases: Cochrane Central Register of Controlled Trials, PubMed, and Web of Science. A combination of controlled vocabulary, free‐text words, and well‐defined inclusion and exclusion criteria guided the search. Results Digital impression accuracy is at the same level as conventional impression methods in fabrication of crowns and short fixed dental prostheses (FDPs). For fabrication of implant‐supported crowns and FDPs, digital impression accuracy is clinically acceptable. In full‐arch impressions, conventional impression methods resulted in better accuracy compared to digital impressions. Conclusions Digital impression techniques are a clinically acceptable alternative to conventional impression methods in fabrication of crowns and short FDPs. For fabrication of implant‐supported crowns and FDPs, digital impression systems also result in clinically acceptable fit. Digital impression techniques are faster and can shorten the operation time. Based on this study, the conventional impression technique is still recommended for full‐arch impressions.
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The authors deny any conflicts of interest
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ISSN:1059-941X
1532-849X
DOI:10.1111/jopr.12527