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Influence of horizontal intraoral scan bodies on the trueness of digital impressions for complete-arch prostheses on four implants: an in vitro evaluation

2025-10-01Research article Open access
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dc.contributor.authorLaureti, Andrea
dc.contributor.authorMarques, Tiago
dc.contributor.authorPitta, João
dc.contributor.authorFehmer, Vincent
dc.contributor.authorSailer, Irena
dc.contributor.authorPozzi, Alessandro
dc.contributor.authorAzevedo, Luís
dc.date.accessioned2025-09-11T06:54:55Z
dc.date.available2025-09-11T06:54:55Z
dc.date.issued2025-10-01
dc.description.abstractObjective: To assess the impact of horizontal intraoral scan bodies (H-ISBs) on the trueness of complete-arch digital impressions compared to vertical ISBs (V-ISBs). To evaluate trueness among four intraoral scanners (IOS) and inter-operator variability across different ISB × IOS combinations. Materials and Methods: Digital impressions were made from a dental cast with four multi-unit analogs using four H-ISBs: H-NB, H-NS, H-M6, H-SF, and a V-ISB (V-EA) as a comparison. Two operators performed 10 scans per ISB with four IOS devices (i5D, PS, T3, T4), generating 400 impressions. Reference scans were obtained with a desktop scanner, and trueness was analyzed using root-mean-square (RMS) error calculations (? = 0.05). Results: H-NS and H-SF exhibited the highest trueness across IOSs, whereas H-NB and H-M6 showed lower trueness. V-EA outperformed H-NB and H-M6 but not H-NS and H-SF. Significant IOS-ISB interaction effects (p < 0.01) indicated H-SF as the most accurate, especially with PS. T4 and i5D displayed greater variability, particularly with H-NB. V-ISBs exhibited higher inter-operator variability compared to H-ISBs. Conclusions: H-ISBs did not perform better than V-ISBs in all scenarios. The interactions among ISB design, IOS type, and operator significantly affect the digital impression trueness. The discrepancies measured among the systems remain well below the currently accepted threshold for clinically relevant misfit, supporting the suitability of the horizontal configuration for complete-arch impressions.eng
dc.identifier.citationLaureti, A., Marques, T., Pitta, J., Fehmer, V., Sailer, I., Pozzi, A., & Azevedo, L. (2025). Influence of horizontal intraoral scan bodies on the trueness of digital impressions for complete-arch prostheses on four implants: an in vitro evaluation. Clinical Oral Implants Research, 36(10), 1287-1295. https://doi.org/10.1111/clr.70001
dc.identifier.doi10.1111/clr.70001
dc.identifier.eid105011080181
dc.identifier.issn0905-7161
dc.identifier.otherf3a4300b-f43d-4a8c-8f5d-56bde9efc510
dc.identifier.pmid40682265
dc.identifier.urihttp://hdl.handle.net/10400.14/54784
dc.identifier.wos001531964600001
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectComplete arch
dc.subjectDigital impression
dc.subjectHorizontal scan bodies
dc.subjectIntraoral scanner
dc.titleInfluence of horizontal intraoral scan bodies on the trueness of digital impressions for complete-arch prostheses on four implants: an in vitro evaluationeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage1295
oaire.citation.issue10
oaire.citation.startPage1287
oaire.citation.titleClinical Oral Implants Research
oaire.citation.volume36
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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