Corrective Jaw Surgery — Types, Who Needs It & Recovery

What is Corrective Jaw Surgery?

Corrective jaw surgery, medically known as orthognathic surgery, is a highly specialized procedure that reshapes, lengthens, or shortens your jawbones. Surgeons perform this operation to fix severe irregularities in the facial skeleton and teeth. The primary goal is to improve how your upper and lower jaws work together, which directly impacts your ability to chew, speak, and breathe normally.

When your jaws do not align correctly, you can experience a cascade of functional problems. You might struggle to bite into an apple, suffer from chronic jaw pain, or breathe heavily through your mouth. Sometimes, traditional orthodontic treatment (braces or clear aligners) alone cannot fix these issues. This happens because the underlying problem lies in the actual size or position of the jawbones, rather than just the angle of the teeth. In these complex cases, an oral and maxillofacial surgeon must physically move the upper jaw, lower jaw, or both into the proper anatomical position.

This procedure solves a wide range of functional and structural problems. It corrects severe bite issues that cause premature wear and tear on your tooth enamel. It relieves chronic pain and tension from the jaw joint, allowing you to open and close your mouth smoothly. Furthermore, it physically opens up the airway in your throat, providing a highly effective treatment for severe sleep disorders. While the main focus is on function, many patients also notice a dramatic and positive improvement in their facial symmetry and side profile after the bones heal.

There are several specific types of jaw surgery, depending on which bones require correction. Your surgeon will choose the appropriate technique based on your unique facial anatomy:

• Maxillary osteotomy: This is surgery on the upper jaw. Surgeons use this to fix an open bite, a crossbite, or an upper jaw that recedes too far back. The surgeon can move the upper jaw forward, backward, upward, or downward.
• Mandibular osteotomy: This is surgery on the lower jaw. Surgeons frequently use this to correct a severe overbite (where the lower jaw is too short) or an underbite (where the lower jaw grows too long).
• Bimaxillary osteotomy: This involves surgery on both the upper and lower jaws during the same operation. Surgeons use this for complex facial asymmetries or severe airway obstructions.
• Genioplasty: This is surgery specifically on the chin. Surgeons often combine this with lower jaw surgery to correct a receding chin, fix a crooked chin, or improve overall facial balance.

By addressing the root cause of the skeletal misalignment, corrective jaw surgery provides a permanent, life-long solution for complex dental and facial deformities. You can learn more about how we diagnose and treat these structural conditions in our Oral & Maxillofacial Surgery department.

Who Needs Corrective Jaw Surgery?

Many people have slight misalignments in their teeth or jaws that do not require surgical intervention. In India, epidemiological studies show that between 20% and 43% of the population experiences some form of malocclusion (a misaligned bite). However, only a small percentage of these individuals have skeletal deformities severe enough to require an operation.

You might need this procedure if you have a severe jaw discrepancy that conservative treatments cannot resolve. Orthodontists and oral surgeons work closely together to determine when braces fall short. If your upper and lower teeth do not meet correctly even after years of wearing braces, or if your facial bones are growing at different rates, surgery becomes the most effective next step.

Conditions and symptoms that frequently require corrective jaw surgery include:

• Severe overbite, where the lower jaw is significantly underdeveloped and sits too far back.
• Severe underbite, where the lower jaw protrudes aggressively past the upper jaw.
• Open bite, where the front teeth do not touch at all when the back teeth are closed together.
• Difficulty chewing, biting, or swallowing food properly.
• Chronic mouth breathing and inability to close the lips without straining the facial muscles.
• Facial asymmetry, where the face looks noticeably unbalanced, twisted, or crooked from the front or side.
• Obstructive sleep apnea (OSA), a dangerous condition where the airway collapses during sleep, causing breathing to stop repeatedly.
• Temporomandibular joint (TMJ) disorders that cause chronic pain, clicking, and restricted mouth opening.
• Birth defects and congenital conditions like cleft lip and palate that severely affect normal jaw growth.
• Facial trauma that results in poorly healed jaw fractures or crushed facial bones.

Ideal candidates for this surgery are adults and older teenagers whose jawbones have completely finished growing. Performing the surgery before the bones reach maturity can lead to the jaws shifting out of alignment again as the child continues to grow. For female patients, jaw growth typically stops around age 14 to 16. For male patients, jaw growth usually continues longer and stops between ages 17 and 21.

Indian patients often seek this surgery to correct chronic breathing issues, severe chewing difficulties, or facial imbalances that negatively affect their self-esteem and social confidence. If you want to understand more about specific bite issues and how we evaluate them, you can read our guide on underbite and overbite surgical and non-surgical correction.

How Corrective Jaw Surgery is Performed

Surgeons perform orthognathic surgery entirely inside your mouth in the vast majority of cases. This internal approach means you will not have any visible surgical scars on your face, chin, or jawline. The surgical team uses general anaesthesia for the entire procedure, so you remain completely asleep, unaware, and pain-free from start to finish.

The procedure begins with the surgeon making precise incisions through the gum tissue to access the underlying jawbones. Using specialized surgical saws and instruments, the surgeon carefully cuts the bone according to a highly detailed, pre-planned digital model. This strategic cutting allows the surgeon to mobilize the jaw segment and move it forward, backward, up, or down as dictated by your treatment plan.

For upper jaw surgery (known as a Le Fort I osteotomy), the surgeon cuts the bone above the roots of the upper teeth. This allows the entire upper jaw, including the roof of the mouth, to move as a single unit. For lower jaw surgery (known as a Bilateral Sagittal Split Osteotomy), the surgeon makes cuts behind the molars and splits the jawbone lengthwise. This technique allows the front section of the lower jaw to slide forward or backward while keeping the jaw joints in their proper sockets.

Once the surgeon places the jaw in its new, anatomically correct position, they secure the bone using tiny titanium plates and screws. These titanium fixtures act as internal casts, holding the bones rigidly together while they heal. These plates become a permanent part of your bone structure, do not rust, and do not set off metal detectors at the airport. Finally, the surgeon stitches the gum tissue back together using dissolvable sutures that naturally fall out or absorb after a few weeks.

Depending on the complexity of your specific case, the surgery usually takes between two and four hours. If you are having both the upper and lower jaws repositioned simultaneously, the procedure will naturally take longer. After the surgical team completes the operation, they will move you to a specialized recovery room. Here, nurses will closely monitor your vital signs until you fully wake up from the anaesthesia.

You will typically need a hospital stay of two to four days following the procedure. During this inpatient stay, the nursing staff will monitor your airway, manage your pain with intravenous medications, and ensure you can swallow liquids safely. If you are interested in how we diagnose and digitally plan for these complex facial surgeries, check out our article on facial asymmetry causes, diagnosis, and surgical correction.

Preparing for Corrective Jaw Surgery

Preparation for jaw surgery is a thorough process that begins months, or even years, before the actual operation date. You will usually need to wear traditional braces or clear aligners for 12 to 18 months prior to the surgery. This important orthodontic phase moves your teeth into the correct position over the bone. Your bite may actually feel worse during this phase, but this supports your teeth will fit together perfectly once the surgeon moves your jaws into their new alignment.

As your scheduled surgery date approaches, you will undergo several mandatory pre-operative tests. These medical evaluations ensure you are physically healthy enough to undergo general anaesthesia and help the surgical team finalize the 3D surgical plan.

• 3D Cone Beam Computed Tomography (CBCT) scans to precisely map your facial bones, nerve pathways, and tooth roots.
• Digital intraoral scans or physical dental impressions to create accurate models of your teeth and bite.
• full blood tests to check your haemoglobin levels, kidney function, and blood clotting ability.
• An electrocardiogram (ECG) and chest X-ray to evaluate your heart and lung health.
• A detailed physical examination and consultation with an anaesthesiologist to obtain final fitness clearance.

You must stop taking certain medications and supplements well before the surgery. Your doctor will instruct you to stop taking blood thinners, aspirin, ibuprofen, and certain herbal supplements (like ginger or ginkgo biloba) at least one to two weeks prior. This step is vital to reduce the risk of excessive bleeding during the operation. You must also strictly stop smoking and using any tobacco or nicotine products. Nicotine severely constricts blood vessels, restricts blood flow to the surgical site, and dramatically increases the risk of bone infection and delayed healing.

You should start preparing your home environment for your extended recovery phase. Stock your kitchen pantry and refrigerator with a wide variety of liquid and soft foods, as you will not be able to chew anything for several weeks. Purchase a high-quality blender if you do not already own one. You will also need squeeze bottles, large syringes with catheter tips, and long spoons to help you consume food while your lips are swollen and numb.

On the actual day of your surgery, bring loose, comfortable clothing that buttons or zips completely down the front. You will not want to pull tight t-shirts or sweaters over your swollen, sensitive face after the operation. Bring a heavy-duty lip balm or petroleum jelly to keep your lips moisturized, as they will stretch considerably during the procedure. Finally, remember to follow the pre-operative fasting instructions strictly. This usually means consuming absolutely no food or water for at least eight hours before your scheduled operation time.

Recovery After Corrective Jaw Surgery

The recovery process requires significant patience, mental resilience, and strict adherence to your surgeon's post-operative instructions. The first 24 to 48 hours are universally the most challenging part of the journey. You will experience significant facial swelling, mild to moderate aching discomfort, and a heavy feeling of congestion in your nose and sinuses.

During these first two days in the hospital, you will receive potent pain medication, anti-inflammatory drugs, and antibiotics directly through an IV line. You will start drinking clear liquids using a syringe or a small cup. The nursing staff will teach you how to keep your mouth meticulously clean using special antibacterial mouthwashes. You cannot brush your teeth normally yet, so these chemical rinses are your only defense against oral infections.

Your week-by-week recovery timeline will generally follow this progression:

• Week 1 to 2: Facial swelling usually peaks around day three or four and then slowly begins to subside. You will remain on a strict, non-chew liquid diet. You can consume fresh fruit juices, protein shakes, milkshakes, thin dal water, and strained vegetable soups. You must rest comfortably at home, keep your head elevated on extra pillows, and avoid any strenuous physical activity.
• Week 3 to 4: The visible swelling goes down significantly, and your overall energy levels begin to return to normal. You can transition from a liquid diet to a pureed or very soft diet. Excellent Indian dietary options for this phase include soft, watery khichdi, mashed idli thoroughly soaked in sambar, soft upma, and mashed potatoes. You can usually return to a desk job or school during this time, though you may still tire easily.
• Week 5 to 6: The cut jawbones begin to actively fuse and solidify in their new positions. Your orthodontist will likely resume adjusting your braces to fine-tune your new bite. You can start eating slightly firmer foods like soft cooked vegetables, scrambled eggs, and soft fish. However, you must still strictly avoid hard, crunchy, or chewy items.
• Week 8 and beyond: The bones are mostly healed and stable. You can gradually return to a normal, varied diet and slowly resume all physical activities, including light sports.

Dietary restrictions are absolutely important during the bone healing phase. You must completely avoid hard Indian snacks like murukku, chikki, or raw carrots. You must also avoid tough, chewy foods like mutton or thick flatbreads for at least two to three months. Attempting to chew hard foods too early can bend the internal titanium plates, break the screws, or shift the healing bones out of alignment.

Maintaining excellent oral hygiene is vital to prevent post-operative infections. Since your mouth and gums will remain sensitive, you will use a small, soft-bristled baby toothbrush to gently clean the outside surfaces of your teeth and braces. You will also use warm salt water rinses multiple times a day, especially after every meal, to flush away food debris. For a more detailed, day-by-day breakdown of the healing process, read our guide on orthognathic surgery recovery week by week.

Risks and Complications

Like any major surgical operation under general anaesthesia, corrective jaw surgery carries certain inherent risks. However, when performed by a highly trained and experienced oral and maxillofacial surgeon, the procedure is exceptionally safe. Most patients experience only minor, temporary side effects that resolve naturally as the body heals over time.

Common, minor risks and side effects include:

• Significant facial swelling and bruising that may travel down the neck and onto the upper chest.
• Minor oozing or bleeding from the nose or mouth during the first few days after surgery.
• Temporary numbness, tingling, or altered sensation in the lips, chin, cheeks, or tongue.
• Unintentional weight loss due to the strict liquid and soft diet restrictions.
• Nasal congestion, sinus pressure, and a mild sore throat from the breathing tube used during anaesthesia.

Temporary numbness occurs frequently because the surgeon works very close to the trigeminal nerve branches, which provide feeling and sensation to the face. The nerve often gets stretched, bruised, or manipulated during the bone cutting process. Sensation usually returns gradually over a few weeks to several months as the nerve slowly repairs itself. You may feel tingling or "pins and needles" as the nerve wakes up.

Rare but serious risks require immediate medical attention and intervention. These include severe post-operative bone infections, excessive or uncontrolled bleeding, or accidental damage to the roots of the adjacent teeth. In very rare cases, the jawbones may fail to heal properly (non-union), or the bite may relapse and shift back toward its original position, requiring a second corrective surgery. Permanent nerve damage causing lasting numbness in the lip or chin is also a rare but possible complication.

THANC Hospital actively minimizes these surgical risks through meticulous pre-operative planning and flawless execution. Our surgical team uses advanced 3D computer-guided planning software to map out the exact nerve locations, tooth roots, and precise bone cuts before you even enter the operating room. We also use custom-made surgical guides during the operation. This high level of precision significantly reduces the chances of nerve injury, shortens the time spent under anaesthesia, and provides a highly stable, predictable outcome.

Results and Success Rate

The results of corrective jaw surgery are profoundly life-changing for the vast majority of patients. Once the post-operative swelling completely resolves and the orthodontist removes your braces, you will see a dramatic and permanent improvement in your facial harmony. Your side profile will look more balanced, your chin will sit in the correct position, and your smile will appear natural, wide, and perfectly aligned.

Beyond the obvious cosmetic benefits, the functional improvements are highly successful and impactful. Patients consistently report a massive improvement in their ability to bite into foods, chew tough textures properly, and digest their meals better. If you suffered from chronic TMJ pain, muscle spasms, or frequent tension headaches due to a bad bite, these debilitating symptoms often disappear entirely after the surgery corrects the joint alignment.

For patients suffering from obstructive sleep apnea, moving the upper and lower jaws forward permanently opens the airway in the back of the throat. This structural change often cures the sleep disorder completely, allowing patients to sleep soundly, stop snoring, and wake up refreshed without the need for cumbersome CPAP breathing machines. Speech impediments, lisps, or articulation problems caused by severe underbites or open bites also improve significantly once the teeth and lips can meet properly.

The results of orthognathic surgery are designed to be permanent. Because the surgeon physically alters the dense bone structure and secures it rigidly with titanium plates, the jaws will not revert to their old positions. As long as you wear your orthodontic retainers exactly as instructed by your doctor, your new, healthy bite and balanced facial structure will last a lifetime.

Why Choose THANC Hospital for Corrective Jaw Surgery?

THANC Hospital offers highly specialized, multidisciplinary care for complex facial and dental deformities. Dr. M. Veerabahu has decades of extensive expertise in orthognathic surgery, facial trauma reconstruction, and sleep apnea correction. Our dedicated surgical team performs a high volume of these intricate procedures, so you receive safe, precise, and compassionate care from your initial consultation through to your full recovery. If you are ready to explore your surgical options and improve your quality of life, you can easily Book an Appointment with our specialists today.