Shenzhen dental experts explain that, the cause of front teeth back jaw has the following several points.

      Odontogenic: mostly due to teeth or replace adorable local disturbance in the process, often shown as simple anterior crossbite. There is no abnormal structure of the bone, the treatment is easy and the prognosis is good.

      Bone source: due to genetic and disease caused by factors, in addition to the anterior teeth of the jaw, and with the jaw deformity. The face is concave, sometimes accompanied by open jaw deformity. The treatment is difficult, the effect is not good.

      Functional: due to poor breast feeding posture and so on caused by excessive mandibular functional mandibular protrusion and anterior teeth of the jaw relationship, it is known as the pseudo mandibular protrusion. Without early treatment, long development may come true of mandibular protrusion.

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• What is the effect of posterior crossbite?