What causes tooth sensitivity to sugar, hot, and cold foods?

### Why Are My Teeth Sensitive to Sugar, Hot, and Cold Foods? Tooth sensitivity can be a real pain, especially when enjoying your favorite treats. Here’s why it happens and what you can do about it. #### Causes of Tooth Sensitivity 1. **Enamel Erosion**: The outer layer of your teeth, called enamel, protects the inner layers. When enamel wears away due to acidic foods, sugary snacks, or poor oral hygiene, it exposes the dentin underneath, which is sensitive. 2. **Gum Recession**: As gums recede, the roots of your teeth become exposed. These roots don’t have enamel to protect them, making them more sensitive to stimuli like sugar, heat, and cold. 3. **Tooth Decay**: Cavities or tooth decay create holes in your enamel, allowing hot, cold, and sugary substances to reach the sensitive dentin. 4. **Dental Procedures**: Recent dental work, such as fillings, crowns, or teeth whitening, can temporarily increase sensitivity. #### Managing Tooth Sensitivity 1. **Use Sensitivity Toothpaste**: These toothpastes contain compounds that help block the transmission of sensation from the tooth surface to the nerve. 2. **Maintain Good Oral Hygiene**: Brush twice a day with a soft-bristled toothbrush and floss daily to prevent gum disease and enamel erosion. 3. **Avoid Acidic and Sugary Foods**: Limit your intake of foods and drinks that can wear down enamel. 4. **Visit Your Dentist**: Regular check-ups can catch problems early. Your dentist may recommend treatments like fluoride varnishes or dental bonding to protect your teeth. By understanding the causes and taking steps to manage tooth sensitivity, you can enjoy your favorite foods without discomfort.