{
  "abstract": "Purpose: The aim of the study was to compare the trueness of three intraoral scanner (IOS) technologies – Confocal/Wavefront sampling system (3Shape TRIOS), Active triangulation (Medit i700), and Smart Pixel Sensor/Dynamic depth scanning (Primescan) – in capturing maxillary edentulous ridges with varied anatomical characteristics. Materials and methods: A crossover clinical trial was conducted with 24 fully edentulous maxillary patients. A standardized four-swipe scanning pathway was used, a reference master cast created from polyvinyl siloxane impressions and digitized with a laboratory scanner, and intraoral scans using the three IOS devices in randomized order. Trueness was evaluated by comparing IOS scans to the reference using superimposition technique in Geomagic Control X software. Statistical analysis included multifactorial repeated-measures analysis of variance, with 95% confidence intervals and adjusted pairwise comparisons. Results: Scanner type significantly affected root mean square (RMS) deviation ( P < .001), with Medit i700 showing higher deviations than 3Shape TRIOS and Primescan. Arch form also significantly influenced RMS deviation ( P < .001), with V-shaped arches showing greater deviations, while palatal vault height showed a borderline effect ( P = .050). A significant scanner × arch-form interaction was observed ( P < .001). Conclusion: Scanner type and maxillary arch form significantly influenced scan trueness in fully edentulous maxillary arches, whereas palatal vault height showed a limited effect. Under the standardized scanning protocol, 3Shape TRIOS and Primescan demonstrated lower RMS deviations than Medit i700. Clinical relevance: Scanner technology significantly influences the accuracy of digital impressions in edentulous maxillary arches. Selecting highly accurate scanners may improve the predictability of complete denture fabrication.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Prosthodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India",
    "Department of Pedodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India",
    "Faculty of Medicine and Surgery , Kore University of Enna, Enna, Italy",
    "Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Complutense University of Madrid, Madrid, Spain; Department of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran",
    "Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Meghan Ranjan Singh"
    },
    {
      "affs": [
        0
      ],
      "name": "Subhabrata Maiti"
    },
    {
      "affs": [
        1
      ],
      "name": "Jessy Paulraj"
    },
    {
      "name": "Mario Alberto Alarcón-Sánchez"
    },
    {
      "affs": [
        2
      ],
      "name": "Cosimo Galletti"
    },
    {
      "affs": [
        3
      ],
      "name": "Seyed Ali Mosaddad"
    },
    {
      "affs": [
        4
      ],
      "name": "Artak Heboyan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cprv9ajcfnzmp.bib",
  "cited_by": 0,
  "doi": "10.1016/j.identj.2026.111258",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S0020653926018460",
  "id": "cprv9ajcfnzmp",
  "issns": [
    "0020-6539",
    "1875-595X"
  ],
  "landing_url": "https://doi.org/10.1016/j.identj.2026.111258",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "RK1-715"
    ],
    [
      "openalex",
      "3505|Dental materials and restorations"
    ]
  ],
  "openalex": "W7214037458",
  "pdf_url": "https://www.sciencedirect.com/science/article/pii/S0020653926018460/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/cprv9ajcfnzmp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:44:30Z",
      "native_id": "3b43faa914e541789566e09b33e2c7f8",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.identj.2026.111258"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "lcc:RK1-715",
      "subfield": "general"
    }
  ],
  "title": "Comparative Evaluation of Trueness of Three Intraoral Scanner Technologies in Edentulous Maxillary Ridges",
  "title_text": "Comparative Evaluation of Trueness of Three Intraoral Scanner Technologies in Edentulous Maxillary Ridges",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:44:30Z",
  "url": "https://research.draconitic.com/paper/cprv9ajcfnzmp",
  "venue": "International Dental Journal",
  "versions": []
}