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Intra oral photogrammetry: trueness evaluation of novel technology for implant complete-arch digital impression in vitro

2025-06-01Research article Open access
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dc.contributor.authorPozzi, Alessandro
dc.contributor.authorLaureti, Andrea
dc.contributor.authorTawil, Isaac
dc.contributor.authorChow, James
dc.contributor.authorAzevedo, Luis
dc.contributor.authorFehmer, Vincent
dc.contributor.authorSailer, Irena
dc.date.accessioned2025-08-13T15:32:00Z
dc.date.available2025-08-13T15:32:00Z
dc.date.issued2025-06-01
dc.description.abstractObjectives: To investigate the trueness of intraoral photogrammetry (IPG) technology for complete-arch implant digital impression and evaluate the effect of implant number. Material and Methods: All data were fully anonymized in compliance with ethical standards, and a total of 30 complete-arch patient models with 4 (n = 13), 5 (n = 9), or 6 (n = 8) implants were selected from the archive. Digital impressions were taken with IPG and a desktop scanner. Test and reference standard tessellation language (STL) files were superimposed using a best-fit algorithm. For each implant position, mean linear (ΔX, ΔY, ΔZ axes) and angular deviations (ΔANGLE) and three-dimensional (3D) Euclidean distances (ΔEUC) were measured as primary outcomes with a dedicated software program (Hyper Cad S, Cam HyperMill, Open Mind Technologies) and reported as descriptive statistics. Secondary aim was to determine using linear mixed models whether implant number affected trueness. All statistical analyses were conducted using Stata 18 (Stata Corp, College Station) and significance was set at 0.05. Results: A total of 30 definitive casts with 4 (n = 13), 5 (n = 8), and 6 (n = 9) multi-unit abutment (MUA) analogs were analyzed (n = 146 implant positions). The mean deviations along the X-axis were −3.97 ± 32.8 μm, while along the Y-axis, they were −1.97 ± 25.03 μm. For the Z-axis, a greater deviation of −33 ± 34.77 μm was observed. The 3D Euclidean distance deviation measured 57.22 ± 27.41 μm, and the angular deviation was 0.26° ± 0.19°. Statistically significant deviations were experienced for ΔZ, ΔEUC, and ΔANGLE (p < 0.01). Additionally, the number of implants had a statistically significant effect only on the Z-axis deviation (p = 0.03). Conclusions: Within study limitations, IPG technology was feasible for complete-arch digital implant impression with mean linear, angular, and 3D deviations far below the acceptable range for a passive fit. Reported IPG trueness might avoid a rigid prototype try-in. The implant number had no influence on trueness except for Z-axis deviations. Integrating photogrammetry with intraoral optical scanning (IOS) improved practicality, optimizing the digital workflow. Further clinical trials are needed to confirm these findings.eng
dc.identifier.citationPozzi, A., Laureti, A., Tawil, I., & Chow, J. et al. (2025). Intra oral photogrammetry: trueness evaluation of novel technology for implant complete-arch digital impression in vitro. Clinical Implant Dentistry and Related Research, 27(3), Article e70049. https://doi.org/10.1111/cid.70049
dc.identifier.doi10.1111/cid.70049
dc.identifier.eid105004687175
dc.identifier.issn1523-0899
dc.identifier.other6387c2d1-f4b7-4b6c-b421-47dd272b98e3
dc.identifier.pmcPMC12058441
dc.identifier.pmid40338525
dc.identifier.urihttp://hdl.handle.net/10400.14/54560
dc.identifier.wos001514044400028
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectDental implant
dc.subjectDigital impression
dc.subjectIntraoral photogrammetry
dc.subjectIOS
dc.subjectPhotogrammetrycomplete-arch
dc.titleIntra oral photogrammetry: trueness evaluation of novel technology for implant complete-arch digital impression in vitroeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.titleClinical Implant Dentistry and Related Research
oaire.citation.volume27
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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