Dental decay is the most common cause of tooth loss. It occurs when plaque and sugar allow bacteria to produce acids that damage tooth enamel. Proper brushing and flossing daily removes plaque and prevents decay. A balanced diet low in sugar also helps maintain good dental health. Regular dental checkups allow early detection and treatment of decay. Maintaining good oral hygiene through regular brushing, flossing, a healthy diet, and dental visits is key to preventing decay and keeping teeth and gums healthy.