Preventing dental cavities involves a combination of good oral hygiene practices, dietary choices, and regular dental check-ups. Start by brushing your teeth at least twice a day with fluoride toothpaste and flossing daily to remove plaque and food particles between teeth. Limit the intake of sugary and acidic foods and beverages, as they contribute to tooth decay. Drinking plenty of water, especially fluoridated water, can help rinse away food particles and bacteria. Regular visits to the dentist for professional cleanings and check-ups are essential to detect and treat early signs of cavities. Additionally, dental sealants and fluoride treatments can provide extra protection for your teeth. By following these steps, you can significantly reduce the risk of developing dental cavities and maintain a healthy smile.