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Digital scanning and conventional impressions show comparable accuracy for most fixed prosthodontics, suggests study

Written By : Dr. Shravani Dali |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 2024-12-31T06:15:23+05:30  |  Updated On 31 Dec 2024 12:07 PM IST
Digital scanning and conventional impressions show comparable accuracy for most fixed prosthodontics, suggests study
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Digital scanning and conventional impressions show comparable accuracy for most fixed prosthodontics, suggests a study published in the Journal of Prosthetic Dentistry

Several systematic reviews have compared the accuracy of conventional impression-making and digital recording techniques, with sometimes different results.

A systematic overview of these studies is lacking. This overview of systematic reviews examined the accuracy of digital scans and conventional impressions for tooth- or implant-supported fixed restorations in partially and completely edentulous adult patients.

Four databases (Medline via PubMed, Scopus, Web of Science, and Google Scholar) were searched for systematic reviews according to preset eligibility criteria. Two calibrated evaluators screened and assessed the overall confidence of the included reviews using the A Measurement Tool to Assess Systematic Reviews (AMSTAR) 2 tool. Several review characteristics were recorded, including accuracy in terms of trueness and/or precision.

The Jadad et al1 decision algorithm was used to select the best evidence, and a citation matrix was used to show overlaps in the studies. Results: From the 307 retrieved studies, 28 systematic reviews were included in this overview. Among these, 12 performed meta-analyses, and 18 comprised both in vitro and in vivo primary studies. Generally, digital scanning and conventional impression techniques for crowns and fixed partial dentures, for implant-supported fixed restorations, and for both tooth- and implant-supported restorations showed no statistically significant differences in terms of accuracy (trueness and precision) and marginal and internal adaptation (P>.05).

However, conventional impressions outperformed digital scans for complete-arch fixed dental prostheses in terms of accuracy. Regarding methodological quality, most systematic reviews (67.9%) received critically low overall confidence based on AMSTAR 2. No significant differences were reported in terms of marginal and internal fit between prosthetic restorations constructed after digital scanning and conventional impression-making. The opportunity exists to enhance the methodological quality of systematic reviews about the accuracy of dental recordings.

Reference:

Digital scans versus conventional impressions in fixed prosthodontics: An overview of systematic reviews. Kaitatzidou, Aikaterini et al. Journal of Prosthetic Dentistry, Volume 0, Issue 0

Digitalscanningconventionalimpressionsshowcomparableaccuracymostfixedprosthodonticssuggestsstudy
Source : Journal of Prosthetic Dentistry
Dr. Shravani Dali
Dr. Shravani Dali

    Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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