ArticleInternational journal of implant dentistry2025
The influence of the superimposition procedure and type of intraoral impression on the superimposition accuracy of CBCT scans with dental impressions in implant planning: an in-vitro study.
Article in International journal of implant dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Effect of Fiducial Marker Design (Shape, Size, and Configuration) on the Trueness and Precision of CBCT Marker-Geometry Reproduction for CBCT-Intraoral Scan Registration: An In Vitro Study.Diagnostics (Basel, Switzerland) · 2026Article
- Impact of scanning errors on the trueness of digital implant impressions.International journal of implant dentistry · 2026Article
- CBCT Assessment for Dental Implant Surgery at the Maxilla: A Clinical Update.Diagnostics (Basel, Switzerland) · 2026Review
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Authors and funding
6 authors.
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Abstract
purposeThe aim of this study was to investigate the superimposition of CBCT data with virtual models of the oral situation directly generated using an IOS and with indirectly generated plaster models.
methodsTwo different radiopaque jaw models were first scanned using a CBCT unit. Secondly, ten scans using an IOS and ten alginate impressions were made. The alginate impressions were cast with plaster and the plaster models were digitized using a laboratory scanner. Virtual Reference models generated with an industrial scanner were superimposed with the data sets of the virtual models using both a best-fit procedure on the palate and on the teeth. Deviations in two toothless areas were statistically evaluated.
resultsThe superimposition of the directly generated models with the CBCT-based datasets showed lower deviations. Lower deviations were also calculated for the best-fit based on the teeth. The lowest deviations were found for model 1 with direct modeling and superimposition over the teeth with 0.008 mm (indirect: 0.210 mm; P = 0.001) and for model 2 with 0.010 mm (indirect 0.106 mm; P = 0.002).
conclusionsVirtual models of the oral situation generated directly using an IOS are better suited for superimposing with CBCT-based datasets than indirectly generated ones. The best-fit on the teeth is superior to that on the palate.
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