If not corrected, deep overjaw will cause abnormal development of the jaws and teeth, and will also affect the height and IQ of teenagers. In a normal person, the tongue is tightly attached to the palate, and the upper arch is balanced between the tongue and the muscles of the cheeks, so the dental arch develops normally, forming a very beautiful U-shape, and the mandible has sufficient space for growth and development. However, if the mouth is open for breathing, the tongue hangs backward and it is no longer possible for the tongue to be tightly attached to the palate. Therefore, the upper dental arch develops abnormally and does not develop into a normal U-shape, and there is no space for the lower jaw to grow and develop, which results in aggravation of malocclusion, buck teeth, lengthening of the lower jaw, and abnormal development of the face, and other symptoms. Deep overjet may also have other effects on the child. Parents who find children breathing through their mouths are advised to visit the orthodontic department of the dental hospital in time to correct the ones in time, so as not to lead to serious consequences.
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