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Have you ever found it hard to chew, speak, or breathe? Or perhaps you suspect that your facial features are not well proportioned. It might not be your teeth that are the issue but rather your jaw alignment. Double jaw surgery, also known as bimaxillary orthognathic surgery, is a corrective procedure that repositions the upper and lower jaws to improve function, facial harmony, and overall quality of life.
It is natural to feel nervous about jaw surgery, but thanks to modern surgical techniques, 3D imaging, and orthodontic advancements, double jaw surgery has become safer, more precise, and highly predictable. Many patients say the procedure significantly improves not only their appearance but also their ability to breathe, speak, and eat comfortably.
This guide explains what double jaw surgery is, who needs it, how the procedure works, and what recovery looks like.
What Is Double Jaw Surgery?
Double jaw surgery, medically known as bimaxillary osteotomy, is a type of orthognathic surgery used to correct severe jaw misalignment. While some jaw correction procedures involve operating on a single jaw, double jaw surgery addresses both the upper jaw (maxilla) and lower jaw (mandible) at the same time.
This surgery is recommended when both functional and skeletal issues affect the bite or facial structure.
Common problems treated with double jaw surgery include:
- Severe overbite or underbite
- Open bite
- Facial asymmetry
- Difficulty chewing or speaking
- Jaw-related breathing problems
During the procedure, the surgeon makes precise incisions in the jawbones, repositions them, and stabilizes them using medical-grade titanium plates and screws. The surgery is usually performed by an oral and maxillofacial surgeon in collaboration with an orthodontist.
Why Is Double Jaw Surgery Performed?
Correct Jaw Misalignment
In a healthy bite, the upper teeth slightly overlap the lower teeth. If the jaws are misaligned, the teeth may not meet properly, causing malocclusion.
Common jaw misalignments include:
- Deep overbite
- Underbite
- Open bite
Double jaw surgery helps restore proper jaw alignment and bite function.
Correct Jaw Size
Sometimes the upper and lower jaws develop at different rates. One jaw may be too large or too small, leading to facial imbalance.
The surgery can reposition or reshape the jawbones to create better proportions.
Balance Facial Features
Jaw irregularities can affect the appearance of the entire face. Surgery can improve:
- Facial asymmetry
- Recessed or protruding chin
- Gummy smile
- Uneven jawline
Relieve Facial Pain
Severe jaw misalignment may lead to temporomandibular joint (TMJ) disorders, causing facial pain, headaches, and jaw stiffness. Double jaw surgery may relieve these symptoms.
Improve Obstructive Sleep Apnea
Obstructive sleep apnea (OSA) occurs when the airway becomes blocked during sleep. One treatment option is maxillomandibular advancement (MMA) surgery, where both jaws are moved forward to enlarge the airway and improve breathing.
Double Jaw Surgery Procedure
Before surgery, patients usually undergo orthodontic treatment (braces) to align the teeth and prepare the jaws for proper positioning.
Surgical Process
The orthognathic surgery process generally includes the following steps.
General Anesthesia
The procedure is performed under general anesthesia, ensuring the patient remains asleep and comfortable.
Incisions
The surgeon makes incisions inside the mouth to access the jawbones.
Jaw Repositioning
The upper and lower jaws are carefully repositioned to correct alignment and facial balance.
Securing the Jaws
Small titanium plates and screws stabilize the jaws in their new position.
Closing the Incisions
The incisions are closed, and the patient is moved to recovery for monitoring.
The surgery typically takes several hours, and patients usually stay in the hospital one to two days afterward.
Double Jaw Surgery Recovery Timeline
Recovery varies depending on the individual and the surgical technique used.
Bone healing generally takes 4–6 weeks, while full recovery may take several months.
First 14 Days
During the first two weeks, patients commonly experience:
- Swelling that peaks between day 3 and 5
- Bruising on the cheeks, chin, or under the eyes
- Jaw stiffness and soreness
- A soft or liquid diet
- Fatigue due to healing and reduced food intake
Helpful recovery tips during this period include:
- Keep your head elevated when resting
- Use ice packs for the first 48 hours
- Follow your surgeon’s diet and medication instructions
Patients may also experience emotional ups and downs during this stage, which is completely normal.
2–3 Months
By this stage, most patients begin to feel much more normal, though minor swelling may still be present.
At this point:
- Most patients no longer need pain medication
- Diet gradually returns to solid foods
- Jaw function improves with exercises
- Remaining swelling becomes less noticeable
Post-surgical orthodontic treatment may also begin or continue during this period.
Although early recovery happens relatively quickly, complete healing can take up to one year as the bones and tissues fully stabilize.
Risks and Complications
Like all surgical procedures, double jaw surgery carries some potential risks, including:
- Temporary or permanent lip numbness
- Hearing changes due to swelling or muscle strain
- Jaw relapse (bones shifting back)
- Jaw fracture (“bad split”)
- Excessive bleeding
- Need for a second corrective surgery
- Reactions to anesthesia
- Surgical infection
Fortunately, serious complications are rare, especially when the procedure is performed by an experienced surgeon.
Cost of Double Jaw Surgery
The cost of double jaw surgery varies widely depending on several factors, including:
- Severity of jaw deformity
- Surgeon experience
- Hospital facilities
- Geographic location
- Orthodontic treatment requirements
Estimated cost range:
- $2,000 to $40,000+
- In some complex cases, costs may reach $50,000 or more
If the surgery is performed to treat a medical condition such as obstructive sleep apnea, health insurance may cover part or all of the procedure.
However, surgeries performed purely for cosmetic reasons are often not covered.
Tips for Easier Recovery
These recovery tips can help improve healing and comfort after surgery:
- Drink plenty of water to stay hydrated
- Use ice packs during the first 48 hours
- Sleep with your head elevated
- Eat soft, nutrient-rich foods such as soups, smoothies, and mashed fruits
- Avoid excessive talking or chewing early in recovery
- Brush teeth gently using a soft toothbrush
- Follow all instructions from your surgeon and orthodontist
- Attend all scheduled follow-up appointments
The first few days after surgery are usually the most difficult, but most patients notice significant improvement within the first month.
Conclusion
Double jaw surgery is more than a cosmetic procedure. It is a life-changing treatment that restores proper jaw function, improves breathing, and enhances facial balance.
Although the process involves careful planning, surgery, and recovery time, the long-term benefits often outweigh the temporary discomfort.
If you struggle with severe jaw misalignment, breathing difficulties, or bite problems, consulting an experienced oral and maxillofacial surgeon can help determine whether double jaw surgery is the right solution.
Frequently Asked Questions
Is double jaw surgery painful?
Pain is usually well controlled with medication. Most patients experience discomfort and swelling rather than severe pain.
How long does swelling last?
Major swelling typically subsides within 4–6 weeks, though mild swelling may last several months.
Will there be visible scars?
No. All surgical incisions are made inside the mouth, so there are no visible external scars.
When can I return to work?
Most patients return to work or school in 3–4 weeks, depending on recovery progress.
Can double jaw surgery treat sleep apnea?
Yes. In many cases, repositioning the jaws can significantly improve or even resolve obstructive sleep apnea.
Will my face look very different?
Your face will appear more balanced and harmonious, but still natural.
Do I need braces after surgery?
Yes. Orthodontic treatment usually continues for several months to refine the bite.
Are the plates and screws permanent?
Yes. The titanium plates and screws are biocompatible and are usually left in place unless they cause problems.
What age is best for double jaw surgery?
The surgery is typically performed after jaw growth is complete, usually after age 18.
Are the results permanent?
Yes. With proper care and follow-up treatment, the results are intended to be long-lasting and stable.
References
Smith, J., & Smith, J. (2026). Double orthognathic surgery: a transformative solution for jaw alignment issues.
https://www.southcalgaryoralsurgery.com/double-orthognathic-surgery/Brown, R., & Brown, R. (2022). What is double jaw surgery?
https://omsnashville.com/blog/oral-surgery/what-is-double-jaw-surgery/Riverside Orthodontics. Jaw surgery recovery timeline.
https://riversideortho.net/how-long-is-jaw-surgery-recovery/
