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Combining Self-Reported Information with Radiographic Bone Loss to Screen Periodontitis: A Performance Study.
José João Mendes1, Margarida Neves1, Clara Supiot1
1Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Almada, Portugal.
Journal of Clinical Medicine
|July 12, 2025
Summary
This study found that combining self-reported periodontal health information with radiographic bone loss effectively screens for periodontitis. This dual approach offers a practical method for identifying at-risk individuals when full exams aren
Area of Science:
- Periodontology
- Diagnostic Accuracy
- Public Health Screening
Background:
- Periodontitis is a prevalent oral disease requiring effective screening methods.
- Current screening may not be universally accessible or feasible.
- Evaluating combined diagnostic approaches is crucial for early detection.
Purpose of the Study:
- To assess the diagnostic performance of combined self-reported periodontal data and radiographic periodontal bone loss (R-PBL) for periodontitis identification.
- To compare the efficacy of individual and combined screening indicators.
Main Methods:
- An exploratory cross-sectional study involving 150 adult participants.
- Utilized panoramic radiographs for R-PBL assessment and a validated self-reported questionnaire.
- Analyzed screening performance against the 2018 periodontitis case definition using sensitivity, specificity, PPV, NPV, and AUC.
Main Results:
- The R-PBL model showed the highest predictive performance for periodontitis (AUC: 0.833) and severe periodontitis (AUC: 0.796).
- The combined 'Either' model demonstrated comparable sensitivity to R-PBL.
- Decision curve analysis indicated superior clinical utility for 'R-PBL' and 'Either' models.
Conclusions:
- Combining self-reported information with radiographic bone loss provides adequate screening performance for periodontitis.
- This dual screening strategy is a feasible approach for identifying high-risk individuals, especially in resource-limited settings.
- The findings support the integration of these methods for improved periodontitis detection and management.

