Braces with Jaw Surgery Timeline: The Full Orthognathic Surgery Process

Types of Jaw Surgery

There are three main types of orthognathic surgery. Le Fort I osteotomy repositions the upper jaw. It can move the maxilla forward, backward, up, or down and can also widen it. Bilateral sagittal split osteotomy (BSSO) repositions the lower jaw forward or backward. Bimaxillary surgery (double jaw surgery) repositions both jaws during the same procedure and is used for the most complex cases.

A genioplasty (chin surgery) is sometimes performed at the same time to balance facial proportions. Your surgeon will explain which procedures are recommended for your specific situation.

The Dental-Skeletal Distinction

A mild jaw discrepancy can sometimes be masked by moving teeth to compensate. This is called orthodontic camouflage. For example, mild underbite cases can sometimes be treated by tipping the upper teeth forward and the lower teeth backward to create an acceptable bite even though the jaw positions have not changed.

When the discrepancy exceeds what tooth movement can compensate for (generally more than 4 to 5 mm), surgery becomes necessary. Attempting to camouflage a severe skeletal problem with tooth movement alone can create unstable results, excessive tooth angulation, and compromised facial aesthetics.

Functional Reasons for Surgery

Beyond appearance, jaw surgery addresses functional problems. Severe misalignment can make it difficult to bite into food, chew efficiently, or close the lips comfortably. Some jaw positions contribute to obstructive sleep apnea by narrowing the airway. TMJ problems can also be related to jaw position. These functional issues strengthen the case for medical insurance coverage.

Phase 1: Consultation and Planning (1 to 3 Months)

Treatment begins with consultations with both your orthodontist and oral surgeon. Records include dental impressions or digital scans, panoramic and cephalometric X-rays, a cone-beam CT scan (CBCT), and facial photographs. The orthodontist and surgeon collaborate to plan the treatment: how the teeth need to move before surgery and how the jaws need to be repositioned.

Modern planning often uses 3D virtual surgical planning, where the surgeon simulates the jaw movements digitally before the actual surgery. Custom surgical guides and plates are fabricated from this digital plan. Insurance pre-authorization is also submitted during this phase.

Phase 2: Pre-Surgical Braces (12 to 18 Months)

Braces are placed and worn for 12 to 18 months before surgery. This is often the phase that surprises patients, because the teeth may actually look worse during this time. The orthodontist is decompensating the teeth, meaning they are removing the natural dental compensation that was masking the jaw discrepancy.

For example, if you have an underbite, your upper front teeth may be tipped forward and your lower front teeth tipped backward (your body's way of trying to make the bite work). Pre-surgical braces straighten these teeth to their ideal angulation over the bone. Once the teeth are decompensated, the full skeletal discrepancy becomes visible, and the surgeon can reposition the jaws to match the newly corrected tooth positions.

Phase 3: The Surgery (1 Day + Hospital Stay)

Jaw surgery is performed under general anesthesia in a hospital operating room. The surgery takes 2 to 5 hours depending on whether one or both jaws are being repositioned. All incisions are made inside the mouth, so there are no visible facial scars.

The surgeon cuts the bone in planned locations, moves the jaw segments to their new positions, and secures them with titanium plates and screws. These plates are permanent and do not need to be removed. In most cases, the jaws are not wired shut. The surgeon may use light elastics to guide the bite, but patients can open their mouths immediately after surgery.

Most patients spend 1 to 3 nights in the hospital for monitoring and pain management.

Phase 4: Immediate Recovery (Weeks 1 to 6)

The first 2 weeks involve the most significant swelling and discomfort. Swelling peaks around day 3 to 4 and gradually decreases over 4 to 6 weeks. Some residual swelling may last several months. You will be on a liquid diet for the first 1 to 2 weeks, progressing to soft foods over the next 4 weeks.

Pain is managed with prescribed medications for the first week and over-the-counter pain relief afterward. Numbness in the chin, lips, or cheeks is common and may last weeks to months as nerves recover. Most patients return to work or school within 2 to 4 weeks. Strenuous physical activity should be avoided for 6 to 8 weeks.

Phase 5: Post-Surgical Braces (6 to 12 Months)

Approximately 4 to 6 weeks after surgery, your orthodontist resumes active treatment. Post-surgical braces are used to fine-tune the bite, close any small remaining gaps, and perfect the alignment. Elastics (rubber bands) are worn to help train the new bite relationship.

This phase is typically faster than pre-surgical orthodontics because the major tooth movements have already been completed. Most patients have their braces removed 6 to 12 months after surgery.

Phase 6: Retention

After braces are removed, you will wear a retainer to maintain your results. Your orthodontist will fit you with a removable retainer, a fixed retainer, or both. Lifelong retainer wear is recommended to prevent any shifting.

Diet Progression After Surgery

Week 1 to 2: Liquids only (smoothies, broth, protein shakes, blended soups). Week 3 to 4: Pureed foods (mashed potatoes, yogurt, scrambled eggs, hummus). Week 5 to 6: Soft foods that require minimal chewing (pasta, soft fish, well-cooked vegetables). Week 7 and beyond: Gradual return to normal diet as cleared by your surgeon. Avoid hard, crunchy, or chewy foods until your surgeon confirms the bone has healed.

Managing Swelling and Numbness

Apply ice packs to the face for the first 48 hours (20 minutes on, 20 minutes off). After 48 hours, warm compresses can help reduce swelling. Sleep with your head elevated on 2 to 3 pillows for the first 2 weeks. Facial numbness, particularly in the lower lip and chin area, is expected after lower jaw surgery. Sensation returns gradually over weeks to months. In rare cases, some numbness may be permanent.

Activity and Return-to-Life Timeline

Week 1: Rest at home. Light walking is fine. Week 2: Most patients feel well enough for light daily activities. Week 2 to 4: Return to work or school (desk jobs/classes). Week 6 to 8: Resume exercise and physical activity with surgeon clearance. Month 3: Most patients report feeling fully back to normal in daily life. Month 9 to 12: Full bone healing is complete.

Insurance Coverage

Jaw surgery is often covered by medical insurance (not dental insurance) when it is documented as medically necessary. Functional criteria include difficulty chewing, airway obstruction, speech impairment, or TMJ dysfunction caused by skeletal misalignment. Your orthodontist and surgeon will work together to submit clinical documentation, X-rays, and a letter of medical necessity.

Dental insurance with orthodontic benefits may cover a portion of the braces cost ($1,000 to $3,000 typical lifetime maximum). Pre-authorization from both medical and dental insurance is recommended before starting treatment.

The Importance of the Orthodontist-Surgeon Team

Successful orthognathic surgery depends on precise coordination between your orthodontist and oral surgeon. They must agree on the treatment plan, the amount and direction of jaw movement, and the timing of each phase. Look for providers who work together regularly and have experience with surgical orthodontic cases. Ask how many orthognathic cases they have completed together.