The harm of anti-(occlusion) is basically categorized into the following situations: 1, the harm of the appearance of the face, anti-(occlusion) patients are called crescent-shaped face or concave face, often the normal face is a straight face, the patient’s face is a kind of concave face type. If the age is too young, it will cause psychological disorders, such as school-age children will nickname each other, which will damage the child’s psychological state; 2, the patient’s occlusal function is relatively poor, for the ability to chew food, as well as the ability to cut off the ability to grind the ability to have an impact on the food if the food mass is too large to cut off the child will affect the child’s digestion and absorption, which will affect the late normal growth state.