Children's molars are usually caused by physiological, pathological and psychological factors.
Let's talk about physiological factors first. Some children have bad habits such as picky eating and partial eating, and are prone to lack of calcium and vitamins. Some children are reluctant to eat breakfast and die at dinner. All of these can easily lead to digestive disorders. Because I eat too much dinner, I still have food in my stomach and intestines when I sleep. I have to work overtime to complete the task of digestion and absorption. Dyspepsia and flatulence in the gastrointestinal tract can lead to gastrointestinal peristalsis disorder, which can cause spontaneous contraction of facial masticatory muscles and make teeth grind back and forth.
Dental caries is a common pathological factor causing nocturnal molars. Children with dental caries, tooth arrangement is not good, coupled with the stimulation of inflammation, will cause molars. In addition, rickets, neurasthenia, genetic factors, etc., can cause night bruxism.
Some children grind teeth, may also be caused by psychological stress. According to Jiang Yanhong, there are a few children who do not grind their teeth at ordinary times. However, if they listen to exciting stories before going to bed or watch TV programs that are terrible and tense, they will also have their teeth grinded at night because of the excitement of the nervous system. If they are scolded by their parents for a long time, which causes depression, anxiety and anxiety, it is also an important reason for grinding teeth at night.
"For children, diseases from the mouth to the anus can cause molars. "Liu Haiyan pointed out that due to the incomplete development of children, gastrointestinal function is not good enough, it is easy to have the situation of cardiac sphincter relaxation. Under normal circumstances, the cardiac sphincter starts swallowing function when eating, and is in occlusive state when not eating. If the cardiac sphincter relaxes, it will lead to gastroesophageal reflux to the trachea, which makes children grind teeth in sleep, which is especially common in premature infants. It should be noted that if children over 3 years old still have gastroesophageal reflux, they may have achalasia and need medical treatment. Severe food reflux can cause asthma, pneumonia, etc.