Crossbite jaw surgery: reasons and types


In human beings, the upper and the lower teeth occlude. This means that the upper teeth is more buccal as compared to the lower teeth. Ideally, when the person closes the mouth the upper teeth is always positioned in front of the lower teeth. But sometimes it is the other way round which is also known as a crossbite.


Such a case arises due to faulty bone structure or misalignment of the jaws that results in the inability of many people in chewing or even speaking or even damaged facial structure. Such a type of malocclusion can be either dental or skeletal in nature. When the problem is dental and is the result of misaligned teeth then it can be corrected with orthodontic treatment and with the help of braces. But if the problem is skeletal, either due to a protrusive lower jaw or a retrusive upper jaw, then braces are not enough then there is need for crossbite jaw surgery.


There are two different types of crossbite jaw surgery which are given as under:


Surgery for Retruded Upper jaw or Maxilla:


If the problem of crossbite is the result of retrusive maxilla while the lower jaw or the mandible is positioned normally, then the position of the upper jaw needs to corrected and thus, bring it forward. In this type of surgery the maxilla and the palate are separated from skull and then maxilla is positioned at the correct place with titanium screws and plates.


Surgery for Protruded lower jaw or Mandible:


This type of surgery is known as mandibular sagittal split osteotomy. The back of the mandible is split bilaterally in the wisdom teeth region, then pushed back. The bone is then fixed to the new position with screws.


Before going for the surgery one needs to consult a reliable orthodontist as well as surgeon for the purpose and make sure that indeed the surgery is required.