Toothaches are caused by issues like dental caries, cracks, injuries, or gum disease. A toothache feels like a sharp or dull pain in or around a tooth and it may be sensitive to temperature, pressure, or sweets. Seeing a dentist right away is important to diagnose and treat the underlying cause. The dentist will examine the mouth to identify the problem tooth and determine if infection or damage is present. Treatment depends on the cause but may include fillings, root canals, extractions, or antibiotics to address infection. Proper oral hygiene and regular dental visits can help prevent toothaches.