This observational study will collect labeled data to assess the accuracy of an online periodontal self-assessment tool in adults. Participants will complete the questionnaire and then undergo a clinical periodontal examination during the same visit. The study will compare questionnaire-based results with clinical examination results to evaluate diagnostic accuracy and agreement.
Adult aged 18 years or older
Able to read and understand the study information and provide informed consent
Able to complete the online questionnaire independently (on a smartphone/tablet/computer)
Willing to undergo a same-visit clinical periodontal examination
Completely edentulous (no natural teeth)
Currently undergoing active periodontal treatment (e.g., scaling and root planing) or received periodontal therapy within the past [6 months]
Took systemic antibiotics within the past [3 months]
Unable to complete the questionnaire or examination due to cognitive impairment, severe illness, or communication barriers that prevent informed consent