Bimaxillary osteotomy

Bimaxillary osteotomy is a comprehensive surgical intervention that involves simultaneously repositioning both the upper and lower jawbones (maxilla and mandible), addressing jaw deformities and enhancing facial balance. Typically conducted by an oral and maxillofacial surgeon, this intricate procedure offers transformative benefits.

Indications for Bimaxillary Osteotomy:

1. Severe Mandibular Prognathism or Maxillary Retrognathism: Excessive forward growth of the lower jaw or an underdeveloped upper jaw, leading to facial asymmetry and bite issues.
2. Midfacial Deficiency: Underdeveloped midface, contributing to a flat facial profile and breathing difficulties.
3. Skeletal Open Bite: A gap between upper and lower teeth during back teeth contact, hindering effective chewing and speaking.
4. Skeletal Crossbite: Improper alignment of upper and lower teeth, causing overlap issues when jaws are closed.
5. Severe TMJ Disorders: Corrects underlying skeletal malformations contributing to TMJ symptoms like pain, clicking, and popping in the jaw joint.

Procedure of Bimaxillary Osteotomy:

1. Anesthesia: General anesthesia ensures complete relaxation and painlessness.
2. Incisions: Incisions along the gum line provide access to the underlying bone structure.
3. Bone Cutting: Maxilla and mandible are precisely cut on both sides using specialized instruments.
4. Jaw Repositioning: Repositioned segments are secured with screws, plates, or fixation techniques.
5. Wound Closure: Incisions are meticulously sutured to promote healing and minimize scarring.

Recovery from Bimaxillary Osteotomy:

• Recovery spans weeks to months with potential jaw and facial area pain, swelling, and bruising.
• Initial healing phase involves a recommended soft diet, and physical activity may be restricted.

Benefits of Bimaxillary Osteotomy:

1. Improved Facial Balance and Symmetry: Significantly enhances overall facial appearance for a harmonious profile.
2. Enhanced Chewing and Speaking Function: Corrects malocclusion, improving effective chewing and clear speech.
3. Reduced TMJ Pain and Discomfort: Alleviates pain, clicking, and popping associated with TMJ disorders.
4. Improved Breathing and Sleep Quality: Addresses midfacial deficiencies, improving nasal airflow and reducing sleep apnea symptoms.
5. Enhanced Self-Esteem and Confidence: Positive changes in facial appearance and functionality boost self-esteem.

Bimaxillary osteotomy, commonly known as double jaw surgery, is a surgical procedure designed to reposition both the upper and lower jawbones (maxilla and mandible), addressing jaw deformities and enhancing facial balance. This intricate and invasive procedure is typically carried out by an oral and maxillofacial surgeon.

Surgery Video: Correction of Bimaxillary Protrusion – Le Fort I Osteotomy and BSSO

Treatment Options for Bimaxillary Osteotomy:

1. Le Fort I Osteotomy: Involves horizontally cutting the upper jawbone (maxilla) just above the upper teeth. The two maxillary halves are then moved forward or backward to achieve the desired alignment.
2. Le Fort II Osteotomy: Involves vertically cutting the upper jawbone along the sides of the nose. The maxillary halves are moved forward or backward to achieve the desired alignment.
3. Segmental Osteotomy: Requires cutting the upper jawbone into multiple pieces and repositioning them to correct more complex deformities.
4. Mandibular Setback: Involves cutting the lower jawbone (mandible) in half on both sides and moving the mandibular halves backward to achieve the desired alignment.
5. Genioplasty: Focuses on moving the chin forward or backward to enhance facial balance. Genioplasty can be a standalone procedure or combined with bimaxillary osteotomy.

Bimaxillary osteotomy, with its diverse treatment options, provides a comprehensive approach to correcting jaw deformities and achieving optimal facial aesthetics. The choice of specific procedures depends on the nature and complexity of the individual’s condition.

In conclusion, bimaxillary osteotomy is a secure and effective procedure offering transformative improvements in appearance, function, and quality of life for individuals with severe jaw deformities.