Decoding Dentine Hypersensitivity: Causes, Mechanisms, and Impact

• Episode guest: Prof. Manal Awad, UAE
• Hosted by Dr. Shaista Siddiqui, UAE

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.

Learning Objectives: 

• Define dentine hypersensitivity (DH) and distinguish it from other types of dental pain.
• Identify the key causes of DH, including enamel erosion, abrasion, attrition, and abfraction.
• Understand the hydrodynamic theory, the most widely accepted explanation for DH pain.
• Recognize the prevalence and impact of DH on quality of life and why it often goes underdiagnosed.
• Explore effective management strategies, from preventive care to treatment options.

Disclaimer: This podcast is intended for healthcare professionals, including dentists, for educational purposes only. It should not be considered medical advice, a product endorsement, or promotional material.