There are a number of reasons:
1. Sun damage
People who are exposed to the sun’s harmful UV rays, especially truck drivers have an asymmetry. What side of the car you are driving on determines what side of your face will be the worst affected.
2. Sleeping on your Side
Sleeping on your side has to cope with excessive weight (from the rest of your head) resulting in more strain and hence aging.
4. Uneven or Asymmetrical Muscles
Factors to consider
- Age of the patient
- Severity of the existing Dentofacial deformity
- The measured response to the orthopedics once a decision has been made to use them.
There are different techniques as per the condition of the patient. There are several evaluation stages of the deformity to determine the technique to be used. Regular visits are required for the evaluation stage, taking proper instructions from the doctor.
Orthodontic functional appliances may be used to attempt to stimulate growth on the affected side, thus producing an equal growth.
Early surgery to improve facial appearance and facial growth , thereby reducing the severity of the adult deformity, followed by orthodontic treatment.