The Pain Paradox: A Narrative Review of Patient Misconceptions Conflating Dentine Hypersensitivity with the Silent Progression of Gingivitis and Periodontitis in the Absence of Dental Caries
Objective: Gingivitis and periodontitis are frequently misunderstood by patients as harmless because, unlike dental caries, they rarely produce overt pain until late in their course. When patients do experience oral discomfort, they commonly attribute it entirely to dentine hypersensitivity (DH) and, finding no cavity on visual inspection, conclude that nothing is clinically wrong. This narrative review examines the origins and clinical consequences of this misunderstanding and proposes a framework for patient communication that distinguishes the painless, plaque-driven inflammatory destruction of periodontitis from the short, sharp, stimulus-evoked pain of dentine hypersensitivity.
Methods: A narrative literature review was conducted using PubMed, Google Scholar and the Cochrane Library, together with consensus reports of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions and the World Health Organization Global Oral Health Status Report. Search terms combined ‘periodontitis’, ‘gingivitis’, ‘dentine hypersensitivity’, ‘patient perception’, ‘self-awareness’, ‘health belief model’ and ‘oral health literacy’. English-language epidemiological, clinical and patient-perception studies published up to 2026 were included.
Results: The literature consistently shows that periodontitis behaves as a ‘silent disease’: self-awareness among affected patients ranges from approximately 25% to 50%, and awareness declines with age even as disease prevalence rises. Concurrently, dentine hypersensitivity affects an estimated 3-98% of the population depending on diagnostic criteria, with especially high rates (60-98%) among patients who have, or have been treated for, periodontitis, because gingival recession is the leading predisposing factor for dentine exposure. Because dentine hypersensitivity produces a recognisable pain response and caries does not, patients tend to use ‘no cavity, no pain apart from sensitivity’ as an informal, but clinically unreliable, health check, overlooking bleeding, halitosis, recession and mobility as meaningful disease markers.
Conclusion: The absence of caries and the presence of a plausible, familiar explanation for discomfort (sensitivity) together mask the silent progression of periodontal disease. Structured chairside communication that explicitly separates the mechanisms, symptoms and risks of gingivitis/periodontitis from those of dentine hypersensitivity is required to correct this misunderstanding and to improve timely presentation for periodontal care.
Keywords: Periodontitis; Gingivitis; Dentine hypersensitivity; Patient perception; Oral health literacy; Silent disease
