ArticleGerodontology2025
Accuracy and Reliability of Intraoral 3D Scans for Diagnostic Evaluations in Nursing Home Residents.
Article in Gerodontology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Bedside Intraoral Scanning to Reduce Procedural Burden in Older Adults With Dementia: Nonrandomized Counterbalanced Crossover Feasibility Study.JMIR formative research · 2026Article
- Domiciliary dental care: a scoping review of the literature.BDJ open · 2026Article
- Remote assessment of caries, MIH, and plaque on intraoral 3D scan images: Findings from the LIFE Child study.Clinical oral investigations · 2026Article
- Are Conventional Impressions Obsolete? A Narrative Review on the Applicability of Intraoral Scanners.Australian dental journal · 2025Review
- Reliability and Diagnostic Performance of Digital Versus Clinical Assessment of Oral Hygiene and Gingival Health in Older Community-dwelling Adults.Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric DentistryObservational
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Authors and funding
5 authors.
Funding
Abstract
objectivesTo evaluate the accuracy and reliability of intraoral 3D scans for assessing the oral health of older patients living in nursing homes. MATERIALS AND
methodsOne examiner recorded missing teeth, restorations, caries lesions and oral hygiene (Geriatric-Debris-Index Simplified [GDI-S] ≥ 1.9) in nursing home residents using visual-tactile diagnostics (reference test) and afterwards obtained intraoral scans with an intraoral scanner (TRIOS 4, 3Shape). Two other independent investigators and the clinical examiner assessed only the scans to delineate the same diagnostic outcomes. For these outcomes, we assessed accuracy, sensitivity, specificity and the Area-under-the-Receiver-Operating-Characteristics Curve (AUROC). Kappa values (κ) were calculated to evaluate inter-examiner and intra-examiner reliability after re-examination by all examiners after a minimum interval of 3 weeks.
resultsForty-three partially dentate patients (65-95 years of age) in need of care living in four nursing homes with a total of 486 teeth (mean [SD]: 11 [9] teeth per patient) were examined. Scans were perfectly accurate for detecting missing teeth (AUROC [sensitivity/specificity]: 1 [1/1]) and showed high accuracy for detecting restorations (0.96 [0.93/0.98]), too. Accuracy was lower to detect caries (0.77 [0.58/0.97]) and insufficient for oral hygiene (0.76 [0.54/0.99]). Agreement between examiners was perfect for missing teeth (κ: 1), very good for the detection of restorations (0.94), and good for caries or insufficient oral hygiene (0.73 and 0.72, respectively).
conclusionsScans were suitable for basic diagnostic evaluations but showed considerable shortcomings in detecting caries and poor oral hygiene. Assessing scans was relatively reliable. CLINICAL RELEVANCE: Using scans may allow telemedical assessments of nursing home residents, but users should be aware of the differential accuracy for different diagnostic targets.
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