### Understanding Tooth Sensitivity and Its Causes Have you ever felt pain or discomfort after a bite of ice cream or a spoonful of hot soup? If so, you’re not alone. Pain caused by hot or cold foods could be a sign of a cavity, but it’s also common in people who have sensitive teeth. Tooth sensitivity, or “dentin hypersensitivity,” is pain or discomfort in the teeth as a response to certain stimuli, such as hot or cold temperatures. It can be temporary or chronic, affecting one tooth, several teeth, or all the teeth in a single individual. Most cases of sensitive teeth are easily treated with a change in your oral hygiene regimen. People with sensitive teeth may experience pain or discomfort as a response to certain triggers, often felt at the roots of the affected teeth. Common triggers include hot or cold foods and drinks. Symptoms may come and go over time and can range from mild to intense. Some people naturally have more sensitive teeth due to having thinner enamel, the outer layer of the tooth that protects it. Enamel can be worn down from brushing too hard, using a hard-bristled toothbrush, grinding your teeth, or consuming acidic foods and drinks. Other conditions can also lead to tooth sensitivity. Gastroesophageal reflux (GERD) can cause acid to come up from the stomach and esophagus, wearing down teeth over time. Frequent vomiting from conditions like gastroparesis and bulimia can also wear down enamel. Gum recession can leave sections of the tooth exposed and unprotected, causing sensitivity. Tooth decay, broken teeth, chipped teeth, and worn-down fillings or crowns can expose the dentin of the tooth, causing sensitivity. Sensitivity may also occur temporarily after dental work like fillings, crowns, or teeth bleaching. If you’re experiencing tooth sensitivity for the first time, make an appointment with your dentist. They can check for potential problems like cavities, loose fillings, or recessed gums. Your dentist may recommend over-the-counter treatments like toothpaste for sensitive teeth, which can help block discomfort. Using softer toothbrushes and brushing more gently can also help. If home treatments don’t work, your dentist may suggest prescription toothpaste and mouthwash, fluoride gel, or desensitizing agents. Treating underlying conditions like GERD or gum recession is also important to prevent further enamel damage. In severe cases, procedures like gum grafts or using a mouthguard to prevent teeth grinding may be recommended. If tooth sensitivity makes it difficult to eat, talk to your dentist about finding a solution. There are many treatments available to help manage and reduce sensitivity.