Sleep in the evening, often love grind one's teeth. What reason be excuse me. Have bug inside

When sleeping, always love to grind teeth may be caused by parasitic infection, it may also be caused by high work pressure, mental stress for a long time, but also suspected to be caused by the disorder of the upper and lower teeth, calcium deficiency. You can go to the hospital stomatology department to check the upper and lower teeth bite relationship, you can also make special jaw pads to reduce damage to teeth.