If your teeth hurt when you eat or drink something hot or cold, it might be time to talk to your dentist about sensitive teeth. Other things like sweet or sour foods and even cold air can also cause discomfort. Understanding the cause of your tooth sensitivity can help you find a solution. Sensitive teeth often result from worn enamel, which exposes nerve endings. To prevent further damage, avoid brushing too hard, use a soft-bristled brush, and avoid acidic foods and drinks. Grinding your teeth can also wear down enamel, so consider stress management or a mouth guard. Bleaching treatments can cause temporary sensitivity, so consult your dentist if you experience pain. Other issues like receding gums, gum disease, or a cracked tooth can also cause sensitivity. Regular dental checkups and proper oral hygiene can help keep your teeth healthy and pain-free.