Common ways to protect teeth include maintaining oral hygiene, exercising teeth bite force, and regular dental checkups at the dentist. 1. Maintain oral hygiene: brushing teeth is the most important measure to protect teeth, develop a good habit of brushing teeth in the morning and at night before going to bed, each time brushing for not less than 3 minutes, it is recommended to use the Chinese Stomatological Association recommended by the Papanicolaou method of brushing teeth. Rinse your mouth with water after eating three meals a day, and try to use the force of water to remove food debris. 2. Exercise teeth bite force: wake up in the morning and at night before going to bed, insist on doing the upper and lower teeth knocking, and gradually increase the number of times a day and knocking force. This can increase the flexibility of the fibrous tissue around the teeth, so that the teeth are more solid, but also to promote blood circulation in the tissues around the teeth, so that the periodontal tissues are more healthy. 3. Regular checkups in the dental department: half a year to one year to the dental department for a comprehensive dental examination, if the teeth have diseases, timely treatment. It is recommended to go to the hospital stomatology department regularly to check the health of teeth and prevent the occurrence of caries.