Why do you need dental crossbite correction?

Crossbite correction is a method of correcting abnormal bite of the upper and lower jaws. It usually requires surgical treatment, through osteotomy, and moving the bone tissue back and forth to shrink, so as to achieve the correct bite. We know that problems with tooth occlusion are very harmful to human health, and may even cause facial deformities. There are many reasons for this abnormal bite, which are related to genetics, bad living habits, etc.

Specific reasons

There are generally two causes of crossbite: skeletal crossbite and dental crossbite. Skeletal crossbite is an "overbite" caused by the upper and lower jaws. The normal occlusion relationship is that the upper incisors cover the lower incisors, while skeletal crossbite means that the lower incisors are outside the upper incisors. Common factors causing skeletal crossbite include:

1. Caused by genetic factors. If one of the parents has overbite, the children are likely to have it as well. According to statistics, this proportion can be as high as 1/3.

2. Bad living habits, such as frequently protruding the lower jaw and biting the upper lip.

3. Bottle-fed children often drink milk from the bottle while lying on their backs, which causes the bottle to press on their upper lip and their lower jaw to suck forward, which can easily lead to crossbite in the long run.

Crossbite formation

The formation of underbite can be generally divided into two categories. One is simply caused by disordered tooth arrangement. The development of the upper and lower jaws is normal and the position is also normal. This type of tooth does not require surgery, only the dentist can realign the teeth. The other type is skeletal underbite, which requires underbite surgery to correct successfully. The project is large and the cost is relatively high. Now this type of crossbite can be corrected through surgical correction, which can give you perfect teeth.

Crossbite correction is based on the individual's protruding teeth. Through the use of a skeletal 3D CT system, the facial width ratio and the bone width ratio are measured in multiple aspects. After the protruding jaw deformity is diagnosed, the maxillofacial 3D reconstruction is performed to determine the 18 craniofacial anatomical landmarks commonly used in orthodontics, accurately improve the facial contour, and use preoperative 3D simulation software to correctly design the postoperative effect. The surgery adopts a minimally invasive method to accurately open the alveolar bone without cutting the mucosa and blood vessels, and can safely and quickly adjust the occlusal relationship of the teeth after surgery. Because the alveolar bone is cancellous bone with good blood supply, fast healing and no scars after healing, it has less risk and better effect than traditional orthodontic surgery to open the supporting bone (compact bone with poor blood supply, slow healing and scars after healing).

(1) Children during the jaw growth period: If not corrected in time, it will lead to insufficient growth of the maxilla and excessive growth of the mandible, eventually forming a skeletal crossbite. In severe cases, it is necessary to wait until the age of 18 when the jaw growth is basically completed, and then undergo orthognathic surgery to change the "sunken mouth" face shape - cosmetic surgery.

(2) Long-term underbite is an important cause of temporomandibular joint disorder syndrome.

Precautions

1) Precautions before surgery

① Do not take any medication containing aspirin within two weeks before surgery.

② Before the operation, the patient’s health condition should be confirmed to be free of infectious diseases or other physical inflammations.

③ Do not wear makeup before the operation.

2) Postoperative precautions

① You can chew after the operation, but you cannot gnaw or bite within three months.

② Keep the surgical area clean and hygienic, and try to avoid getting the surgical area wet within 7 days after surgery.

③ Avoid eating irritating foods, such as chili peppers.

④ Strictly follow the doctor’s instructions for medication and follow-up visits.