Teeth not only chew food and help in pronunciation, but also have a great impact on the beauty of the face. Due to the support of teeth and alveolar bone, the arch shape and bite relationship of the teeth is normal, will make people’s face and lips and cheeks appear plump. And when people speak and smile, neat and white teeth can show the health and beauty of people. What are the common problems with teeth? First, running easy to hurt teeth? 1, long-term mass exercise (including running) need to consume a lot of carbohydrate drinks, the pH value in the mouth decreases, the dental hard tissue is easy to demineralization, thus forming caries 2, people in strenuous exercise will be mouth breathing, saliva secretion is reduced, the teeth of the self-cleaning ability to decline (the above is for professional athletes, long-term strenuous exercise) 3, dental trauma 2, long-term use of one side of the teeth to eat is unhealthy? 1, not conducive to facial development: commonly used side of the chewing muscles developed, the waste side of the relative atrophy, resulting in facial asymmetry 2, easy to cause temporomandibular joint disorders and other diseases 3, the waste side of the self-cleaning ability to decline, easy to deposit tartar, resulting in poor oral hygiene, and even lead to gingivitis, periodontitis, dental caries and other disorders 3, brushing immediately after meals to remove more dirt? After eating, saliva in the process of digesting food will produce a lot of acid, acidic environment plus mechanical friction stimulation (brushing) is more likely to damage tooth enamel, so that its demineralization, and finally the formation of cavities. Rinse your mouth after meals and brush your teeth half an hour after meals is a good time to protect your teeth. Rinse your mouth after meals, brush your teeth half an hour after meals is a good time to protect your teeth four, tooth decay must be pulled out immediately? Deep caries, as well as deep caries caused by pulpitis, apical periodontitis and other affected teeth should be treated, filled and retained as far as possible, except for the following: 1, permanent tooth stumps, but the remaining roots have no therapeutic value, it should be extracted, prosthetic restoration 2, loose milk teeth with most of the root resorption of the apical periodontitis, it should be extracted, the line gap to maintain the caries of the 3, non-functional wisdom teeth, it should be extracted 4, in line with the above indicators of tooth extraction, but is in the period of acute inflammation, should be Eliminate the inflammation before extraction V. 2 hours after filling can not eat? As long as a filling is the same side of the tooth, 2 hours after the filling can be chewed with the other side of the tooth to eat. Emphasize that you can not use the affected teeth to bite too hard and sticky things, to prevent the material from falling off. And this is something that must be taken care of no matter if it is 2 hours, 2 months, or even longer after the filling.