Tooth conditions refer to various health issues affecting the teeth, including cavities, gum disease, and tooth sensitivity. Cavities occur when bacteria produce acids that erode tooth enamel, leading to holes. Gum disease, or periodontal disease, involves inflammation and infection of the gums, which can result in tooth loss if untreated. Another common tooth condition is tooth sensitivity, where discomfort arises from hot, cold, or sweet stimuli. This can be caused by worn enamel, gum recession, or tooth decay. Regular dental check-ups and good oral hygiene practices, such as brushing and flossing, can help prevent these conditions.