Prevalence and oral hygiene–related correlates of self-reported dentin hypersensitivity among Egyptian adults: a cross-sectional study

Abstract Background Dentin hypersensitivity (DH) is a prevalent clinical condition characterized by pain arising from exposed dentin in response to external stimuli. Despite its clinical relevance, epidemiological data from Egypt and the Middle East remain limited. This study aimed to assess the prevalence, symptom characteristics, and oral hygiene-related correlates of self-reported dentin hypersensitivity among Egyptians adults. Methods A cross-sectional questionnaire-based study was conducted among 370 Egyptian adults recruited from multiple governorates between January and August 2025. Data was collected using a structured questionnaire that underwent expert review, pilot testing, and reliability assessment. Information regarding self-reported dentin hypersensitivity, triggering stimuli, oral hygiene habits, behavioral factors, and sociodemographic characteristics was obtained. Multivariable logistic regression analyses were performed to explore factors associated with self-reported gingival recession and frequent or persistent dentin hypersensitivity symptoms. Results Self-reported dentin hypersensitivity was reported by 86 participants, yielding an overall prevalence of 23.2% (95% CI: 19.2–27.8%). The most common trigger was cold stimuli, and the most common symptom pattern was intermittent discomfort. Most participants reporting hypersensitivity were younger adults, although no significant association with sex was observed. Self-reported gingival recession was reported by 27.9% of participants with dentin hypersensitivity. Multivariable regression analyses did not identify significant independent predictors of self-reported gingival recession or frequent/persistent hypersensitivity symptoms. Conclusion Self-reported dentin hypersensitivity affected nearly one-quarter of surveyed Egyptian adults, with cold-triggered symptoms predominating. The absence of strong independent predictors supports the multifactorial nature of dentin hypersensitivity. These findings provide region-specific epidemiological data and highlight the need for future studies incorporating standardized clinical assessment to validate self-reported symptoms and further investigate associated factors.