Bi-Jaw Surgery (Double Jaw Surgery)

About Bi-Jaw Surgery (Double Jaw Surgery)

Double jaw surgery in Lucknow, technically known as bimaxillary or BIMAX surgery, is reserved for patients whose upper and lower jaws are both contributing to a functional or aesthetic problem. The operation involves controlled cuts in both the maxilla and mandible, after which each jaw is repositioned to a planned new location. Movements may be forward, backward, upward, downward or rotational. The aim is to deliver a bite, airway and facial balance that single-jaw surgery cannot reach in moderate to severe cases.

We recommend bi-jaw surgery when imaging and clinical assessment confirm that operating on only the maxilla or only the mandible would leave the bite unstable or the face under-corrected. Common indications include severe under-bite or over-bite, open bite, marked facial asymmetry, sleep-disordered breathing linked to retruded jaws and certain congenital conditions. Skeletal growth must be complete first, usually around 15 to 16 years in girls and 17 to 18 years in boys, with the upper jaw maturing roughly two years before the lower.

Pre-operative planning at Kayakriti is thorough. We collect facial photographs, intraoral scans, panoramic and lateral cephalometric radiographs and a 3D CT scan. Virtual surgical planning rehearses each cut and movement in software, and an orthodontist usually places appliances seven to ten months before surgery to align teeth within each jaw. This preparation increases predictability, shortens theatre time and lets Dr. Agarwal, FRCS Edinburgh, share with you a clear visual of the expected outcome before any consent is signed.

The surgery itself is performed under general anaesthesia with nasal intubation. All incisions are placed inside the mouth, so there are no visible facial scars. The team typically operates on one jaw at a time, using titanium plates and screws to hold the new position securely. Bone may be added in the form of grafts where lengthening is needed, or carefully removed for reduction. Most patients spend two to three nights in hospital before returning home for guided recovery and post-surgical orthodontics.

What to expect

• Detailed work-up with photographs, scans and 3D virtual planning
• Pre-surgical orthodontics for roughly seven to ten months
• General anaesthesia with experienced anaesthetic cover
• All incisions inside the mouth, leaving no visible facial scars
• Repositioning of both jaws and fixation with titanium plates and screws
• Hospital stay of two to three nights with structured pain control
• Post-surgical orthodontic phase to fine-tune the final bite

Recovery

• Soft and liquid diet for around six weeks while bones consolidate
• Significant swelling for the first two weeks, gradually settling
• Most patients return to office work in three to four weeks
• Strict oral hygiene with prescribed rinses and gentle brushing
• Numbness around lips and chin can last weeks to months and usually recovers
• Final aesthetic and functional result matures over six to twelve months