EPISODE #1: Dentine Hypersensitivity Demystified

ABSTRACT: Dentine hypersensitivity (DH) is a sharp, transient pain triggered by everyday stimuli like hot or cold beverages, acidic foods, or even brushing. But what sets it apart from other types of dental pain? In this episode, we break down the defining characteristics of DH, its causes, and the mechanisms behind it.

We discuss how enamel erosion, attrition, abrasion, and abfraction contribute to dentin exposure, leading to sensitivity. The widely accepted hydrodynamic theory explains how fluid movement in dentinal tubules stimulates nerve endings, causing discomfort. While other theories have been proposed, they lack strong evidence.

Beyond the science, we explore the prevalence of DH, the factors affecting its diagnosis, and its impact on daily life. Why do some regions report a higher prevalence? Why are women more affected than men? And how does DH influence oral health-related quality of life (OHRQoL)? We also touch on the economic implications of DH and why many cases go undiagnosed and untreated.

Whether you're a dental professional or someone experiencing sensitivity, this episode provides valuable insights into DH and its management. Tune in to better understand this common yet often overlooked condition!

Brought to you by Haleon, the producer of Sensodyne. – your trusted partner in dentine hypersensitivity care.

Manal Awad is a Professor of Dental Public Health and currently, she is the Vice Dean of the College of Dental Medicine, University of Sharjah, UAE. She obtained her BDS degree from the University of Alexandria, Egypt, her Masters’ Degree in Dental Public Health from the University of Alberta, Canada and her PhD Degree in clinical epidemiology from McGill University, Montreal, Canada. Prof. Awad’s research is in the field of population health, with a focus on the assessment of therapies for chronic oral conditions, particularly tooth loss. Prof. Awad’s area of expertise is in the design of randomized clinical trials and the use of patient-based outcomes and quality of life measurements in the assessment of therapies. She has over 60 publications in international peer-reviewed journals. She received several research grants from local and international funding agencies, as well as, industrial research support. Professor Awad, is the former President of the International Association of Dental Research, UAE section, she also has served on the editorial board of the prestigious Journal of Dental Research and Community Dentistry and Oral Epidemiology Journal. She is currently an editor of the International Journal of Dentistry and on the editorial board of the JDR Clinical and Translational Research Journal.