Usually people talk about “flat mouth”, mainly refers to the inward upper lip, the opposite lower lip protrudes, and the lower front teeth are wrapped outside the upper front teeth. So what exactly is the “flat mouth”?
It is reported that the causes of “flat mouth” are more complicated. Generally, it is not only the problems of soft tissues and teeth such as lips, but also the deformity of bones in most cases. We know that the upper teeth grow on the maxilla and the lower teeth grow on the mandible. If the maxilla is underdeveloped and retracted, it will cause depression in the middle of the face, manifested as invagination of the upper lip, collapse of the side of the nose, etc.; the development of the mandible is transitional Protrusion causes the chin to be too long, the lower lip protrudes forward, and the lower teeth also protrude and bite outside the upper teeth, resulting in a “crossbite”. The “flattened mouth” will result in the inability to bite off the noodles, apples, watermelons and other fruits when eating, and the face will be relatively old. The abnormal jaw development of “flat mouth” is mainly related to heredity, and the treatment of cases with family inheritance is also difficult; bad habits also have a certain impact, for example, lying down and drinking milk during infancy may cause “flat mouth”, some Children’s habit of protruding their mandibles to make faces can also lead to “flat mouth”.
For the treatment of “flat mouth”, a specialist examination is first needed to determine what is causing it. The principle of treatment is early detection and early treatment, and the best time can be before adolescent development or after the age of 18. If the cause of the disease is caused by the disorder of the arrangement of the teeth, orthodontic treatment can correct the teeth; if it is caused by the abnormal development of the gums (maxillary and maxillary bones), it needs to cooperate with more complex special treatment.
