Tooth sensitivity is a common dental issue that can affect anyone at any stage of life. Characterised by a sudden, sharp pain or discomfort when consuming certain foods or drinks, tooth sensitivity can range from mildly inconvenient to significantly painful. At Oadby Dental Clinic we’ll help you discover the root causes of tooth sensitivity and explore effective solutions for managing and preventing it. What Is Tooth Sensitivity? Tooth sensitivity, also known as dentin hypersensitivity, occurs when the protective layers of the teeth are compromised, exposing the inner, sensitive layer of the tooth called dentin. Dentin contains tiny tubules that connect to nerve endings within the tooth. When exposed to external stimuli such as cold air, hot beverages, or acidic foods, these nerve endings react, causing discomfort or pain. What Are the Common Causes of Tooth Sensitivity? Understanding the underlying causes of tooth sensitivity is the first step toward addressing it. Below are some of the most common reasons: 1. Enamel Erosion The outermost layer of the teeth, enamel, serves as a protective shield. When this enamel erodes due to acid exposure or aggressive brushing, it leaves the dentin vulnerable to external triggers. Enamel erosion can be caused by: Frequent consumption of acidic foods and drinks like citrus fruits, soda, or wine. Bruxism (teeth grinding) during sleep or stressful situations. Over-brushing with hard-bristled toothbrushes or abrasive toothpaste. 2. Gum Recession Gums play a vital role in protecting the roots of the teeth. Over time, gums may recede due to ageing, periodontal disease, or improper oral care. This recession exposes the roots of the teeth, which lack enamel, leading to increased sensitivity. 3. Tooth Decay Cavities and dental caries compromise the structural integrity of a tooth. As decay progresses, it can expose the inner dentin, triggering sensitivity. 4. Dental Procedures Procedures such as fillings, crowns, or teeth whitening can cause temporary tooth sensitivity. This typically occurs due to irritation of the nerves during the treatment, but the sensitivity often subsides within a few days or weeks. 5. Cracked or Chipped Teeth Physical damage to a tooth can expose its inner layers, making it more susceptible to sensitivity. 6. Use of Whitening Products While effective at brightening teeth, whitening products often contain strong chemicals that can irritate the enamel and dentin, especially if used excessively. Please consult with a trusted dentist before applying any of these products at home, or book professional teeth whitening . 7. Chronic Dry Mouth Saliva acts as a natural buffer against acid in the mouth. When saliva production is insufficient, due to conditions like xerostomia or medication side effects, teeth are more prone to sensitivity and decay.