2012年8月4日 星期六

Irregular Teeth Cause

Hereditary factor:

  • Mismatch in the sizes of upper and lower jaws
    "Projected upper teeth" results if the upper jaw is much longer than the lower jaw. "Reversed bite" results if the upper jaw is smaller than the lower jaw.

  • Abnormal number of teeth
    Normally one should have 28 permanent teeth (excluding the third molars). If the number of teeth is more than that, the jaw may not have enough space for all the teeth to align properly. If there are too few teeth, there may be spaces between the teeth and the teeth may look irregular.

  • Mismatch in the tooth and the jaw sizes
    If the tooth size is too big, the jaw size is too small, the jaw may not have enough space for all the teeth to align. If the tooth size is too small or the jaw size is too large, there will be spaces between the teeth and the teeth will look irregular.


Reference information: , www.bjDental.com

It is not intended as medical advice to any specific person. If you have any need for personal advice or have any questions regarding your health, please consult your Dentist for diagnosis and treatment.

沒有留言:

張貼留言