Observational studyOral radiology2026
Effect of different ultrasonography probes on intra and interrater reliability in periodontal diagnostic parameter measurements: a pilot study.
Observational study in Oral radiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
objectivesThis study aimed to assess intra and interrater reliability of real-time periodontal measurements using different ultrasonographic probes.
methodsIn this prospective observational study, four operators performed real-time B-mode ultrasonography on 12 maxillary anterior teeth. An 18-MHz linear probe was used for extraoral imaging, and a 15-MHz hockey-stick probe was applied both intraorally and extraorally. Gingival thickness (GT), gingival height (GH), alveolar bone crest-cementoenamel junction distance (ABC-CEJ), and alveolar bone thickness (ABT) were measured twice by each operator at a two-week interval. Intra- and inter-operator reliability was evaluated using intraclass correlation coefficients (ICC).
resultsIntrarater reliability of periodontal ultrasound measurements varied across probes and operators. The hockey stick probe demonstrated higher interrater reliability for GH (ICC = 0.452, p = 0.004 in extraoral application; ICC = 0.388, p = 0.015 in intraoral application) and for ABC-CEJ measurements (ICC = 0.441, p = 0.033 in extraoral application; ICC = 0.461, p = 0.086 in intraoral application). GT and ABT demonstrated lower consistency, with several non-significant ICC values. The linear probe yielded limited reliability across parameters.
conclusionOperator-dependent variability remains a major limitation in periodontal ultrasonography. Nevertheless, the extraoral application of the hockey-stick probe provided the most consistent reliability for gingival height and ABC-CEJ measurements, supporting its potential use in real-time chairside periodontal evaluation.
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