In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations.

Abou-Ayash, Samir; Mathey, Amber; Gäumann, Fabio; Mathey, Ayse; Donmez, Mustafa Borga; Yilmaz, Burak (2022). In vitro scan accuracy and time efficiency in various implant-supported fixed partial denture situations. Journal of dentistry, 127, p. 104358. Elsevier 10.1016/j.jdent.2022.104358

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OBJECTIVES

To compare the accuracy and time efficiency of different digital workflows in 3 implant-supported fixed partial denture situations.

METHODS

Three partially edentulous maxillary models with 2 implants (Model 1: implants at lateral incisor sites; Model 2: implants at right canine and first molar sites; Model 3: implants at right first premolar and first molar sites) were digitized (ATOS Capsule 200MV120, n=1) for reference scans. Test scans were performed for direct (Primescan (DDW-P) and Trios 3 (DDW-T)) and indirect (IDW) digital workflows (n=14). For IDW, stone casts (type IV) were obtained from vinylsiloxanether impressions and digitized (S600 Arti). The scan/impression and post processing times were recorded. Reference and test scans were superimposed (GOM Inspect) to calculate 3D point, inter-implant distance, and angular deviations. Kruskal-Wallis and Mann-Whitney tests were used for trueness and precision analyses (α=.05).

RESULTS

Tested workflows affected trueness (P≤.030) and precision (P<.001) of scans (3D point, inter-implant distance, and angular deviations) within models. DDW-P had the highest accuracy (3D point deviations) for models 1 and 3 (P≤.046). IDW had the lowest accuracy for model 2 (P<.01). DDW-P had the highest accuracy (inter-implant distance deviations) for model 3 (P≤.048). Direct digital workflow mostly led to lower angular deviations (P≤.040), and higher precision for models 2 (mesiodistal direction) and 3 (P<.001). The time for direct digital workflow was shorter (P<.001), DDW-P being more efficient than DDW-T (P=.008).

CONCLUSION

Direct digital workflow was more accurate and efficient than indirect digital workflow in tested partial edentulism situations with 2 implants.

CLINICAL SIGNIFICANCE

Tested intraoral scanners can be recommended for accurate and efficient impressions of anterior and posterior 3- or 4-unit implant-supported fixed partial dentures.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology
04 Faculty of Medicine > School of Dental Medicine

UniBE Contributor:

Abou-Ayash, Samir, Mathey, Ayse Annette, Dönmez, Mustafa-Borga, Yilmaz, Burak

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1879-176X

Publisher:

Elsevier

Language:

English

Submitter:

Pubmed Import

Date Deposited:

16 Nov 2022 07:59

Last Modified:

07 Dec 2022 14:28

Publisher DOI:

10.1016/j.jdent.2022.104358

Related URLs:

PubMed ID:

36356837

Uncontrolled Keywords:

Digital workflow partial edentulism precision time efficiency trueness

BORIS DOI:

10.48350/174723

URI:

https://boris.unibe.ch/id/eprint/174723

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