How can you improve your appearance? Discussion on orthodontic treatment + orthognathic surgery
Orthodontics

How can you improve your appearance? Discussion on orthodontic treatment + orthognathic surgery

When braces alone cannot fix bite or jaw problems, orthognathic surgery may be combined with orthodontics. Here is how the multi-year process works.

Amy mustered up the courage to see a dentist today, not for an ordinary dental examination, "Doctor, I have seen many dentists, and they have told me that my case cannot be done with orthodontics only, as surgery needs to be done at the same time to achieve better results. After struggling for years, I feel it is time to make up my mind to make some radical changes for myself. I know the process takes a long time, can you tell me how it actually works?”

Can braces alone solve the problem?

Some patients who need orthodontics are just like Amy. They first make an appointment with a general dentist/orthodontic specialist for orthodontic evaluation. When the tell them braces alone could not achieve the desired effect, and jawbone surgery would be needed to solve the existing problem, the news often caught them off guard, because this type of jawbone revision/orthognathic surgery usually involves much more time, risks and costs than normal orthodontic treatment.

When is orthognathic surgery (jaw surgery) required?

The more common problems that require surgical treatment include:

-    improper bite due to bone structure
-    protruding, receding or asymmetrical jawline
-    gummy smile
-    Severe incisor opening affects eating

How to perform jaw correction surgery with orthodontics?

Generally, when the attending dentist or orthodontist decides that surgery is needed to deal with the problem, they will arrange the patient to meet with a specialist in oral and maxillofacial surgery with relevant surgical experience.

A specialist in oral and maxillofacial surgery will conduct a detailed examination and diagnosis. If necessary, they will make a joint assessment with the orthodontist to formulate a treatment plan to maximize the benefit to the patient.

For example, how long should orthodontics take before surgery? Oral and maxillofacial surgeons need to know how the orthodontists are going to cooperate in moving the teeth to successfully preserve space and make the required corrections to ensure an ideal occlusal function after correction? How long will it take to fine-tune the bite after correction?

After judging these conditions, the oral and maxillofacial surgeon will explain the procedure and the scope of the operation to the patient. To achieve the facial shape commonly known as the golden ratio, should the surgery treat one or two jaws? This will depend on what the patient wants to improve or whether the above-mentioned congenital jawbone problem is involved.

In addition to a series of data collection and examinations, including full mouth X-rays, 3D computed tomography scans, oral impressions, etc., according to individual oral conditions, patients may also need to complete other adjuvant treatments, such as dental fillings, tooth cleaning or tooth extraction before receiving the formal orthodontic treatment.

Orthodontics first, surgery later

Before jawbone surgery, it usually takes nine months to a year and a half to receive orthodontic treatment. The main purpose is to make the teeth more aligned and prepare for the subsequent surgery. When the teeth are moved to the ideal position and aligned relatively neatly, the oral and maxillofacial surgeon will update all records, and then use these materials and 3D models to do a simulated surgery assessment and use a surgical guide (surgical guide / wafer) to raise the surgery accuracy rate.

Undergo a preoperative anesthesia assessment

Next, the patient needs to see an anesthesiologist for a health assessment, as jaw surgery is usually performed in a hospital under general anesthesia. An anesthesiologist will assess whether the patient has any chronic medical conditions to understand whether there is anything that may increase the risk of anesthesia. If the evaluation result is all normal, the patient will need a simple blood test before admission.

Precautions after jaw surgery

Depending on the scope of correction, jawbone surgery generally takes about 4 to 6 hours. After the operation, the patient generally needs to stay in the hospital for one to two days, and the doctor will evaluate the patient's postoperative condition.

Diet will become slightly inconvenient in the first few days after surgery, requiring nutrient fluids as the main source of nutrition. After the operation, the swelling will be more serious. It is necessary to apply ice to the face frequently. Normally, the patient will feel better day by day, and the swelling will gradually disappear.

In general, the entire orthodontic treatment with jawbone surgery takes about three to four years. Patients need to have adequate psychological preparation and adhere to the treatment plan to achieve ideal results.

If in any doubt, please consult your trusted family dentist.

Article Info

First published: 22 September 2021

Last reviewed: August 2026

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FAQ

Frequently Asked Questions

  • How much does orthognathic surgery with orthodontics cost?

    The cost depends on the complexity of your case, the number of jaws treated, and the duration of orthodontic preparation. Combined treatment starts from HK$30,000, with surgical fees varying based on the procedure. Treatment design — extraction decisions, root control and occlusal detailing — determines post-treatment stability. After a clinical assessment we explain the fee components clearly, and treatment starts only with your consent. We provide a personalised quote after a joint assessment with our oral and maxillofacial surgeon — WhatsApp us to arrange a consultation.

  • How long does the entire treatment take from start to finish?

    The full process usually takes two to three years. You'll first undergo orthodontic treatment for nine months to a year and a half to align your teeth. After jaw surgery (which takes 4 to 6 hours), you'll need several more months of orthodontic fine-tuning to perfect your bite. Your orthodontist and surgeon will give you a more precise timeline during your assessment.

  • What are the risks of jaw surgery?

    As with any surgery under general anaesthesia, there are risks including bleeding, infection, nerve damage, and anaesthetic complications. Your oral and maxillofacial surgeon will explain all potential risks during your consultation. An anaesthesiologist will also assess your health beforehand to identify any factors that might increase risk. We recommend discussing your specific concerns during an in-clinic consultation.

  • Can braces alone fix my protruding jaw?

    Braces alone can address tooth alignment, but if your concern stems from jawbone structure — such as a protruding, receding, or asymmetrical jawline — orthodontics combined with jaw surgery is usually needed to achieve the desired result. A detailed assessment with our orthodontist and oral surgeon will determine the best approach for your case.

  • Will I need to stay in hospital after the surgery?

    Jaw surgery is performed in hospital under general anaesthesia and typically requires a short hospital stay for monitoring. The exact duration depends on the complexity of your procedure and your recovery progress. Your oral and maxillofacial surgeon will discuss post-operative care and what to expect during your pre-surgery consultation.

  • What happens during the orthodontic phase before surgery?

    Before surgery, you'll wear braces for nine months to a year and a half to align your teeth and prepare them for the surgical correction. This phase ensures your teeth are in the ideal position so that after the jawbones are repositioned, your bite functions properly. Your orthodontist will monitor progress closely and coordinate with the surgeon throughout.

Still wondering about something? Our team is happy to chat.

Reminder: You have the right to choose a Hong Kong dentist based on your individual needs. We recommend referring to the list of registered dentists published on the official website of the Dental Council of Hong Kong to make a choice best suited to your personal needs. The above content is intended to give you a brief introduction to the nature and effects of the relevant dental procedures, so that you can make informed decisions when choosing a dentist and related treatment options. All treatments have advantages and disadvantages — the key is that you must have a basic understanding of different treatments and procedures and be aware of the associated risks. The above content does not represent the professional opinion or views of any dentist or dental institution. For the sake of your health, please consult your family dentist for formal medical advice.

This article is compiled by the Public Education Team of Home Dental and has been reviewed and approved by the Content Review Committee of Home Dental. The Committee comprises members of our Board of Directors, legal advisors, and relevant professionals, and is responsible for vetting all externally published health education content to ensure it is professional, accurate, relevant to the local context, and regularly updated to meet Hong Kong dental service standards.

This content is originally produced by Home Dental, all rights reserved. Unauthorized reproduction, modification, or publication is prohibited. Violators will bear legal responsibility. For citation or partnership inquiries, please contact our center for written permission.

Last updated: Aug 2026

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