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A patient with moderate to severe sleep apnea suffers from severe drowsiness during the day and difficulty staying awake at work due to narrowing of the airway due to retraction of the mandible. After orthognathic surgery to move the mandibular forward, not only did the AHI index drop from moderate to severe to 3.7, the respiratory tract was also significantly improved, the quality of sleep was improved, and the overall mental state was completely renewed. The surgery also improved the appearance of the retracted chin and allowed the patient to regain a healthy quality of life. It was a successful sleep apnea treatment case.

Orthognathic surgery was originally designed to improve the bite and appearance of the patient. However, in the field of treating obstructive sleep apnea, orthognathic surgery (maxillo-mandibular advancement/MMA) has become a means to tighten the collapsed (relaxed) muscles rather than an end. Improvement in appearance and bite has become an added value of maxillo-mandibular advancement.

A patient with moderate to severe sleep apnea had a minimum blood oxygen concentration of only 44% during sleep. Not only did he suffer from severe snoring, but he also experienced dangerous breathing difficulties at night. Through the 3D customized orthognathic surgery performed by Dr. Jiang Houren of Fenghua United Clinic, the maxillary bone was moved forward by 6mm and the mandibular bone was moved forward by 12mm. This not only improved the problem of respiratory tract stenosis, but also solved the problem of facial distortion. After the operation, the patient's sleep quality has been significantly improved, snoring is no longer a problem, and the airway expansion has brought unprecedented smoothness.

A 29-year-old male patient was troubled by severe sleep apnea (AHI=39.6) and was unable to adapt to positive pressure respirator treatment. Through 3D customized orthognathic surgery, counterclockwise rotation technology is used to rotate the upper and lower jaw bones forward and perform bilateral turbinoplasty. The postoperative results were significant: AHI dropped to 4.7 (improved by 88.13%), minimum blood oxygenation increased from 79% to 94%, and respiratory tract volume increased by 76.6%. This case demonstrates the effectiveness of orthognathic surgery in the treatment of sleep apnea.

A 28-year-old man sought treatment for severe sleep apnea. The preoperative AHI index was 45 and the lowest blood oxygen concentration was 76%. After diagnosis, it was found that the upper and lower jaw bones were underdeveloped, resulting in airway compression. Through 3D customized orthognathic surgery, counterclockwise rotation and forward movement of both jaws were performed. After the operation, the AHI index dropped significantly to 0.4, and the lowest blood oxygen concentration increased to 92%. The patient's symptoms such as snoring, light sleep and daytime sleepiness have been significantly improved, the respiratory space has been effectively improved, and the treatment effect is excellent.

This 50-year-old woman suffered from severe sleep apnea (AHI = 40.5), with symptoms including severe daytime sleepiness (ESS = 17) and annoying snoring. Interestingly, a CT scan revealed that, in addition to the expected narrowing of her airways, she had undergone a Wassmund and Kole procedure in her youth. This procedure involves extracting one premolar from each side of her upper and lower jaws, then repositioning the upper and lower jaws through bone cutting to correct a protruding mouth.