Evidence map›Paper›PMID 42119243›Full record

ArticleInternational dental journal2026

Multimodal Prediction of Periodontitis Using Root Exposure in Intraoral Images and Age.

Sohee Kang, Hyeonjeong Go, Young-Eun Kwon, Youn-Hee Choi, Eun Young Park, Eun-Kyong Kim

Abstract read
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Article in International dental journal, 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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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Sohee KangDepartment of Dentistry, College of Medicine, Yeungnam University, Daegu, Republic of Korea.
Hyeonjeong GoDepartment of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea.
Young-Eun KwonDepartment of Oral and Maxillofacial Radiology, Kyungpook National University School of Dentistry, IHBR, Daegu, Republic of Korea.
Youn-Hee ChoiDepartment of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea; Institute for Translational Research in Dentistry, Kyungpook National University, Daegu, Republic of Korea.
Eun Young ParkDepartment of Dentistry, College of Medicine, Yeungnam University, Daegu, Republic of Korea.
Eun-Kyong KimDepartment of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea; Institute for Translational Research in Dentistry, Kyungpook National University, Daegu, Republic of Korea. Electronic address: ekkim99@knu.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

INTRODUCTION AND

aimsDespite advances in AI-based periodontitis screening, quantifiable and interpretable biomarkers from intraoral photographs remain underexplored. Therefore, this study aimed to develop a deep learning pipeline for exposed root area quantification from photographs and to evaluate its predictive value for periodontitis risk within a multimodal framework integrating age.

methodsIntraoral photographs of the mandibular anterior sextant and covariate questionnaires were obtained from 269 participants. A fine-tuned YOLOv11 segmentation model quantified tooth and exposed root surface areas, from which the exposed root ratio (ERR) was derived. ERR was combined with age and self-reported data to train four machine learning models (logistic regression, SVM, random forest, gradient boosting) for periodontitis prediction. Performance was assessed using AUROC and permutation feature importance across different feature sets.

resultsThe YOLOv11 segmentation model achieved an overall mAP@0.5 of 0.901, with mean Dice coefficients of 0.928 and 0.844 for tooth and exposed root, respectively. In the ≥35 age group, ERR-only models outperformed age-only models across all four machine learning algorithms, with statistically significant differences in 13 of 24 comparisons (mean ΔAUROC: 0.031-0.094, p < .05). Integration of ERR with age further improved predictive performance, yielding significant gains in 19 of 24 comparisons (mean ΔAUROC: 0.029-0.131, p < .05). Permutation feature importance analysis revealed ERR as the dominant predictor in the ≥45 age group, with importance scores of 0.391 and 0.366 for ERR compared to 0.151 and 0.273 for age in Gradient Boosting and Random Forest, respectively.

conclusionAI-derived ERR from mandibular anterior images is a reproducible, interpretable biomarker that outperforms age and enhances periodontitis prediction when combined with conventional risk factors. CLINICAL RELEVANCE: AI-driven quantification of ERR from intraoral photographs offers a practical, non-invasive, and cost-effective screening tool for periodontitis risk assessment in primary care and community settings, particularly among middle-aged and older populations.

Indexed as

PeriodontitisPhotography, DentalTooth RootAdultAge FactorsBoosting Machine Learning AlgorithmsClassification AlgorithmsDeep LearningFemaleHumansMachine LearningMaleMiddle AgedPrediction AlgorithmsPredictive Learning ModelsPredictive Value of TestsArtificial intelligenceGingival recessionIntraoral photographyPeriodontitisTooth root

Identifiers

PMID42119243
PMCPMC13193789

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.