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Facial ContouringJAW SURGERY

jaw surgery

Jaw surgery involves moving the upper and lower jaw, including teeth, to create a beautifully balanced facial line. After a closer assessment, different procedure methods are applied depending on the position and alignment of the teeth of an individual patient

Jaw Surgery can benefit

  1. 1. People with asymmetric face
  2. 2. People with protruding mouth
  3. 3. People with mandibular prognathism
  4. 4. People with very small or recessed chin
  5. 5. People with long lower face

How is Jaw Surgery performed?

  • a. Conventional Approach
    Patients may be required to receive an orthodontic treatment about 1-2 years before the jaw surgery to align their teeth properly. After the corrective jaw surgery, additional orthodontic treatments may be required depending on the patient셲 condition.
  • b. Surgery-First Approach
    This approach is used when the teeth alignment and position are already optimal for the surgery, which shortens the total treatment duration. Through the surgery, the jaw is re-positioned properly first and then the patient may be required to undergo post-operative orthodontic treatments.
  • c. Combination of Conventional and Surgery-First Approaches
    This approach combines the conventional and surgery-first approaches for the teeth that have minor positioning or alignment issue. First, pre-operative orthodontic treatment is done for a short period (3-4 months) of time and then a routine post-operative orthodontic treatments are required routinely after the jaw surgery.

Corrective Jaw Surgery

Maxilla (Le Forte I Osteotomy)
The Le Fort I osteotomy is the most commonly used procedure to correct the upper jaw. This procedure is performed under general anesthesia and is carried out entirely inside the mouth. A U-shaped incision is made through the gums above the upper teeth to gain access to the jawbone. The gum is then raised off the bone. The upper jaw incisions are made with highly specialized tools, which allow for a controlled parting of the bone. Additional bone can be removed if the upper jaw is to be shortened or added to make it longer (bone graft). The upper jaw bone is then moved into its final position (planned prior to your surgery) and held in place with tiny titanium plates and screws, which are left in place permanently. The gums are stitched back into place with dissolvable stitches. These stitches may take three to four weeks to dissolve. After the bones heal together, the jaw regains its normal strength.
  • a. SSRO Sagittal Split Ramus Osteotomy
    This procedure is used to correct mandible mandibular over and under bite. First, a horizontal cut is made on the inner side of the ramus mandibulae, extending anterally to the anterior portion of the ascending ramus. The cut is then made inferiorly on the ascending ramus to the descending ramus, extending to the lateral border of the mandible between the first and second molar. At this time, a vertical cut is made extending inferior to the body of the mandible, to the inferior border of the mandible. All cuts are made into the middle of the bone, where bone marrow is present. Then, a chisel is inserted into the pre-existing cuts and tapped gently in all areas to split the mandible of the left and right side. From here, the mandible can be moved either forward or backward. If sliding backwards, the distal segment must be trimmed to provide room in order to slide the mandible backward.
  • b. VRO Vertical Ramus Osteotomy
    The vertical ramus osteotomy is a procedure whereby full thickness osteotomies of the rami are performed. When performed bilaterally, they divide the mandible into two smaller condyle bearing segments and a large segment consisting of the anterior ramus and mandibular body including the teeth and chin. The osteotomies are done posterior to the inferior alveolar canal. In contrast to the BSSO, the chance of inferior alveolar nerve injury is greatly reduced. This surgery can be applied for posterior repositioning, mandibular rotations, and shortening of the posterior ramus, but cannot be used for lengthening of the ramus and/or mandibular advancement.
  • c. ASO (Anterior Segment Osteotomy)
    The top and bottom of maxillary first premolar on both sides of the mouth are removed along with the attached bone. The front of the upper and lower mouth is then pushed back and fixed to the jaw using titanium plates to secure its position firm. This procedure is commonly used for people with protruding mouth (bimaxillary protrusion).

Operation Information

2-3 hours
Inside the hairline
2-3 days
2-4 weeks
Stitch Removal
2 weeks after procedure