A toothache is a pain in or around a tooth, often caused by dental issues such as cavities, gum disease, or tooth fractures. The pain can vary from sharp and sudden to dull and persistent. It may also be accompanied by swelling, sensitivity to hot or cold, and difficulty chewing. Toothaches can affect anyone, regardless of age, and may require treatment from a dentist. Over-the-counter pain relievers can provide temporary relief, but addressing the underlying cause is essential for long-term health. Regular dental check-ups can help prevent toothaches by identifying problems early, ensuring better oral hygiene.