If children grind their teeth frequently, consider roundworm infection or calcium deficiency, excessive mental tension, endocrine disorders, nutritional imbalance and other reasons, in this case, we should promptly seek medical attention. If it is an occasional grinding of teeth, it is not pathological, do not worry. During the period of 6-14 years old is in the period of tooth replacement, related to the brain nerve function is not very stable, vulnerable to various stimuli and teeth grinding, there is also the gums will have itching, thus there may be mild grinding, if grinding is serious or continue to grind teeth after tooth replacement is required to go to the hospital for examination. It may be because of parasites, it is recommended to check the stool routine, if the roundworm infection can ask the doctor to prescribe medicine to treat. Do not eat spicy and stimulating food, pay attention to personal dietary hygiene, wash your hands before and after meals and pay attention to hygiene is very important. You can take calcium gluconate oral solution to supplement calcium and vitamin D to maximize the absorption of calcium intake, and Chinese medicine to regulate the spleen and stomach to promote appetite and digestion. Eat more foods with high calcium content, such as milk, shrimp, nori, lean meat, shrimp, etc. to regulate. Children are in the developmental stage, children grinding teeth should be treated early, otherwise it may bring adverse effects to dental development and affect dental health.