Mr. Yu, 38, suffered a severe facial fracture in a car accident six months ago. Almost all of his upper teeth fell out, and he could not bite or chew. He could only eat soft or liquid food. He had consulted the dental clinic many times about dental implants, but could not do it because of the excessive retraction of the maxilla.
Mr. Yu later went to the Jen Ai Chang Gung Memorial Hospital (Da Li Jen Ai Hospital) for treatment. The plastic surgeon planned the surgery. Orthognathic surgery was used to improve the retraction of the maxilla, which not only restored the oral function, but also made the facial contour more harmonious.
Dr. Su Qunlin pointed out that common indications for orthognathic surgery include: mandibular protrusion (buckle), maxillary protrusion (protruding teeth), etc. These conditions may be related to congenital craniofacial developmental abnormalities, acquired tooth and jaw development problems or trauma, which may affect chewing, pronunciation, breathing, and even cause facial disharmony.
The surgical method is to adjust the position of the upper and lower jaws through osteotomy to achieve the ideal bite and facial proportion, and fix it with bone nails to maintain stable healing. Today, orthognathic surgery is combined with CASS (Computer-Assisted Surgical Simulation) computer-assisted surgical simulation technology, which can accurately predict bone movement and postoperative occlusion, so that the surgical plan is highly consistent with the actual results, improving the overall treatment effect.
Dr. Su Qunlin reminds that patients can resume daily activities within one to two weeks after orthodontic surgery, but swelling may last for one to two months, and it takes about three to six months for the swelling to completely disappear. Patients need to eat liquid or soft food in the early stage after surgery, and can gradually resume normal diet in about six to eight weeks. Some patients may temporarily affect pronunciation due to changes in bite, but most patients can resume normal pronunciation as they adapt to the new bite. In addition, orthodontic treatment is usually required after surgery to further improve bite and dentition arrangement and maintain long-term stable treatment results.
Dr. Su Qunlin said that although Mr. Yu’s facial fracture has healed, the car accident caused the maxillary bone to retract. If a dental implant is placed directly, it will be difficult to ensure normal bite function due to the abnormal bone position, and the sunken midface makes his appearance look older than his actual age. To ensure the accuracy of the operation, the medical team developed a personalized treatment plan for Mr. Yu.
The dentist first made a temporary denture for him, simulated the expected implant position, and used CASS technology to accurately plan the surgical steps and predict the bite condition of the maxillary bone forward movement. Based on this, the bite guide used in the operation was made to make the surgical result fit the preoperative simulation plan.
Dr. Su Qunlin emphasized that orthognathic surgery can not only improve functional problems, but also greatly improve appearance and self-confidence. If people have abnormal jaw development, malocclusion (such as overbite, protruding teeth, facial asymmetry, jaw retraction), or facial trauma that affects chewing or appearance, it is recommended to consult a professional doctor as soon as possible to obtain the most appropriate treatment advice.
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