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July 2, 2026The Journal of The Korean Dental Association

Evaluation of self-administered periodontal health questionnaire and actual periodontal treatment need

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Authors

JHJi‐Young HanICIn‐Woo ChoHAHyeon-Seong Ahn

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Overview

Randomized trial validates a self-administered questionnaire for periodontal disease assessment.

Key Points

  • The aim is to validate the PerioQuotient (PQ) as a reliable index for diagnosing periodontal disease.
  • 135 subjects were recruited to assess demographic data and clinical indices of periodontal disease.
  • An 18-question survey was administered, and its reliability was evaluated using Cronbach's alpha.
  • Diagnostic performance was analyzed using ROC curves, area under the curve (AUC), sensitivity, and specificity.
  • The PQ-18 showed a Cronbach's alpha of 0.68; its AUC was 0.806 (95% CI: 0.709-0.903).
  • Applying weighting factors improved the AUC to 0.964 (95% CI: 0.934-0.993) with sensitivity of 0.893 and specificity of 1.0.
  • The modified PQ-17 is a valid tool for diagnosing periodontitis, achieving high sensitivity and specificity.

Cite This Study

Han et al. (2026) studied this question.

synapsesocial.com/papers/6a4600489ed1343031310795https://doi.org/10.22974/jkda.2026.64.6.001
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

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