Discover the Benefits of Customized Orthognathic Surgery
Jaw surgery is most successful when it is planned for one person, not for an average face. Two patients may both have an underbite, for example, but one may need upper jaw advancement, another may need lower jaw repositioning, and a third may require double jaw surgery with chin refinement and airway-focused planning.
As an Oral and Maxillofacial Surgeon, I evaluate the jaws as part of a complete system: the bite, teeth, temporomandibular joints, airway, facial proportions, smile display, chin position, and any facial asymmetry. Customized orthognathic surgery uses this full picture to create a surgical plan that fits the patient’s anatomy and goals.
This article explains how modern planning tools, including CBCT imaging, digital scans, and 3D surgical planning, help make orthognathic surgery more precise, functional, and natural-looking for international patients seeking safe, individualized care.
What customized orthognathic surgery means
Customized orthognathic surgery means the operation is designed around the individual patient’s skeletal structure, dental bite, facial balance, and functional needs. It is not simply “moving the jaw forward” or “setting the jaw back.” Small differences in direction, rotation, height, and symmetry can change both the bite and the face.
A personalized plan may consider:
The relationship between the upper and lower jaws
Dental occlusion, meaning how the teeth meet
Facial height and width
Cheek support and midface projection
Chin position and neck contour
Smile display and upper tooth show
Nasal base changes after upper jaw movement
Facial asymmetry from the front and side
Airway volume and breathing concerns
Patient preferences for a natural, balanced result
For example, a patient with a recessed upper jaw may need a Le Fort I advancement. A patient with a prominent or asymmetric lower jaw may need a BSSO, also called bilateral sagittal split osteotomy. When both jaws contribute to the problem, double jaw surgery may offer the best functional and aesthetic correction.
The goal is not to create the same facial appearance for every patient. The goal is to bring the jaws into a healthier relationship while preserving or improving the patient’s natural features.
How 3D surgical planning improves precision
Modern jaw surgery planning has changed significantly with digital technology. In the past, surgeons relied heavily on 2D X-rays, plaster dental models, and manual measurements. These tools are still useful in selected ways, but they cannot show the full complexity of facial anatomy.
Today, customized treatment often begins with three-dimensional records.
CBCT imaging shows the skeletal foundation
Cone beam computed tomography, or CBCT, creates a 3D image of the facial bones, jaws, teeth roots, joints, nasal cavity, and airway. This helps the surgical team understand the patient’s anatomy in depth.
CBCT can reveal:
Jaw size and position
Bone thickness and shape
Asymmetry between the right and left sides
Impacted teeth or root positions
Temporomandibular joint anatomy
Sinus and nasal structures
Airway space behind the jaws and tongue
This is especially helpful for patients with facial asymmetry, previous orthodontic treatment, sleep-related breathing concerns, or complex skeletal patterns.
Digital scans capture the bite accurately
Digital intraoral scans record the teeth and bite without traditional impressions in many cases. These scans are merged with CBCT data to create a virtual model of the jaws and teeth together.
Once the records are combined, the surgeon and orthodontist can evaluate how the teeth will fit after jaw movement. This is a key point. Orthognathic surgery is not only facial surgery. It is also bite correction surgery, so skeletal movement and dental occlusion must work together.
Virtual planning allows surgical movements to be tested before surgery
With 3D surgical planning, the surgeon can simulate jaw movements before the operation. The upper jaw can be advanced, widened in selected cases, impacted, downgrafted, rotated, or leveled. The lower jaw can be advanced, set back, rotated, or corrected for asymmetry.
The planning software allows measurements in millimeters and degrees. It also helps design surgical splints or guides that transfer the plan to the operating room.
Digital planning does not replace surgical judgment. It supports it. The surgeon still makes decisions based on anatomy, stability, airway, soft tissue response, and long-term function.
Personalized Le Fort I and BSSO movements
Two of the most common procedures in orthognathic surgery are the Le Fort I osteotomy and the BSSO. Each can be customized in multiple ways.
Le Fort I surgery adjusts the upper jaw
A Le Fort I osteotomy allows the surgeon to reposition the maxilla, or upper jaw. This can improve the bite, midface support, smile line, and facial proportions.
The upper jaw may be moved:
Forward to correct midface deficiency or underbite
Upward to reduce excess gum display
Downward in selected cases to improve tooth show
Rotated to improve facial height and jaw relationship
Leveled to correct a tilted smile or occlusal cant
Sideways or asymmetrically to improve facial balance
A customized Le Fort I movement must consider the nose and upper lip because upper jaw repositioning can affect nasal base width, lip support, and smile aesthetics. For this reason, soft tissue prediction and clinical examination are both important.
BSSO surgery adjusts the lower jaw
A BSSO allows controlled movement of the mandible, or lower jaw. It is used to correct lower jaw retrusion, protrusion, asymmetry, and certain bite problems.
The lower jaw may be moved:
Forward to correct mandibular deficiency
Backward in selected cases of mandibular excess
Rotated to coordinate with upper jaw movement
Shifted asymmetrically to improve chin and jawline alignment
Positioned to improve bite and facial harmony
Lower jaw planning must respect the inferior alveolar nerve, which provides sensation to the lower lip and chin. Temporary numbness can occur after BSSO, and the risk varies based on anatomy and surgical factors. Careful imaging and technique help reduce risk, but no surgical plan can remove it completely.
When genioplasty may be added
Genioplasty is a surgical procedure that repositions the chin bone. It may be performed with jaw surgery when chin position affects facial balance, lip competence, or the lower facial profile.
A chin may appear too small, too prominent, too long, too short, or off-center. Some of these concerns improve automatically when the jaws are repositioned. Others require a separate chin movement for the best result.
Genioplasty may be considered when:
The chin remains recessed after jaw correction
The chin is too prominent relative to the lips and nose
The lower face looks too long or too short
The chin point is shifted to one side
Lip closure is strained
The patient wants better balance between the chin, jawline, and neck
A well-planned genioplasty should be subtle and proportional. It should not overpower the face. In many cases, the most natural result comes from combining small jaw movements with a carefully measured chin adjustment rather than relying on one large movement.
Facial balance and asymmetry correction
Facial asymmetry is one of the most common reasons patients seek customized jaw surgery. Mild asymmetry is normal. Most faces are not perfectly equal from side to side. Surgery becomes relevant when the asymmetry affects the bite, jaw function, smile plane, chin position, or overall facial balance.
Common asymmetry patterns include:
A lower jaw that shifts to one side
A tilted upper jaw or smile line
Uneven cheek or jaw projection
Chin deviation
One side of the mandible being longer or shorter
A cant in the bite plane
Correction often requires more than moving the jaws in a straight line. One side may need more advancement, impaction, or rotation than the other. The surgeon must decide how much correction is needed for the bite and how much is appropriate for the face.
A key part of planning is knowing when not to overcorrect. Perfect skeletal symmetry on a scan does not always create the most natural facial result. Soft tissue thickness, muscle tone, and natural facial character matter. The best outcome is usually a face that looks balanced, rested, and harmonious, not surgically “standardized.”
Functional and airway considerations matter as much as appearance
Many patients first ask about facial change, but orthognathic surgery is also a functional operation. The jaws support chewing, speech, breathing, swallowing, and lip posture. A customized plan must protect and improve these functions whenever possible.
Functional goals may include:
Creating a stable bite
Improving chewing efficiency
Reducing traumatic tooth contact
Improving lip closure
Supporting long-term orthodontic stability
Helping with speech issues related to jaw position in selected cases
Reducing strain in the facial muscles
Airway planning is also important. The position of the jaws can influence the space behind the tongue and soft palate. In patients with obstructive sleep apnea or airway restriction, maxillomandibular advancement may be considered because moving both jaws forward can increase airway dimensions.
That said, airway outcomes vary from patient to patient. A proper airway evaluation may include medical history, sleep study results when indicated, nasal assessment, CBCT airway review, and collaboration with sleep medicine or ENT specialists. Jaw surgery should not be presented as a universal cure for breathing problems, but it can play an important role for carefully selected patients.
Surgery-first and presurgical orthodontics are different paths
Orthognathic treatment often combines surgery and orthodontics. The sequence depends on the patient’s bite, dental alignment, facial priorities, and treatment goals.
Presurgical orthodontics prepares the teeth first
In the traditional approach, braces or aligners are used before surgery to position the teeth so the jaws can be moved accurately. This may temporarily make the bite look worse because the orthodontist is removing dental compensation.
For example, in a long-standing underbite, the front teeth may have tilted to mask the skeletal problem. Presurgical orthodontics corrects those tooth positions before jaw surgery. Once the jaws are repositioned, the teeth fit together more properly.
This approach is often preferred when the teeth need significant alignment, arch coordination, or decompensation.
Surgery-first treatment changes the jaw position earlier
In selected patients, surgery can be performed before most orthodontic treatment. This is called the surgery-first approach. It may benefit patients who already have favorable dental alignment or who need early facial and skeletal correction.
Possible benefits include earlier improvement in facial balance and bite relationship. The orthodontic phase then fine-tunes the teeth after surgery.
The surgery-first method is not suitable for every case. It requires careful coordination between the surgeon and orthodontist. If the teeth cannot guide the jaws into a stable bite at surgery, a traditional orthodontic-first plan may be safer and more predictable.
How an individualized surgical plan is created
A customized plan is built step by step. The process may vary between surgical teams, but most comprehensive plans include the following stages.
Clinical consultation
The surgeon evaluates facial proportions, jaw movement, bite, smile display, chin position, nasal relationship, and any asymmetry. Patient concerns are discussed in detail.
Dental and orthodontic assessment
The orthodontist evaluates tooth alignment, arch width, incisor inclination, crowding, spacing, and bite compensation. This helps determine whether presurgical orthodontics or surgery-first treatment is appropriate.
CBCT and digital records
CBCT imaging, digital scans, facial photographs, and bite records are collected. These records allow the surgical team to study the skeleton, teeth, airway, and soft tissue relationships.
3D virtual planning
The jaws are repositioned in a virtual environment. Different movement options may be compared to find the best balance between function, airway, stability, and aesthetics.
Team review
The surgeon and orthodontist coordinate the surgical and orthodontic plan. For complex airway, joint, or nasal concerns, other specialists may be involved.
Patient discussion
The plan is explained in clear terms, including expected changes, limitations, risks, recovery, and alternatives. International patients may receive an online assessment first, followed by in-person records before final confirmation.
Final surgical preparation
Surgical splints, guides, or patient-specific planning materials may be prepared. The bite setup is confirmed before surgery.
Why customization leads to better treatment decisions
Customized planning does not mean every patient needs more procedures. In fact, it often helps avoid unnecessary treatment. When the anatomy is understood in detail, the surgical plan can be more focused.
For one patient, the best plan may be a single-jaw Le Fort I. For another, it may be double jaw surgery with counterclockwise rotation to improve projection and airway space. For another, it may involve BSSO with genioplasty to correct chin deviation and facial asymmetry.
The benefit lies in precision. A personalized plan can improve the chance of:
A stable, functional bite
Better facial balance
More accurate asymmetry correction
Improved airway planning when relevant
More natural aesthetic changes
Better coordination between surgery and orthodontics
Clearer communication for international patients
Every patient should also understand that surgery carries risks, including swelling, bleeding, infection, relapse, numbness, bite changes, TMJ symptoms, and the need for additional treatment in some cases. A careful plan reduces uncertainty, but it does not eliminate risk.
This article is for general education only and does not replace a consultation with a qualified Oral and Maxillofacial Surgeon.
Short FAQ
Is customized orthognathic surgery only for severe jaw problems?
No. Customization is useful for both moderate and complex cases. Even a single-jaw procedure should be planned around the patient’s bite, anatomy, and facial proportions.
Is double jaw surgery always better than single-jaw surgery?
No. Double jaw surgery is recommended when both jaws contribute to the bite problem, facial imbalance, asymmetry, or airway concern. If one jaw is the main issue, single-jaw surgery may be enough.
Will jaw surgery change my face?
Yes, jaw surgery can change facial appearance because the jaws support the lips, cheeks, chin, and lower face. The goal is usually a balanced, natural change that also improves function.
Can international patients start with an online assessment?
Yes. An online assessment can review photographs, dental records, X-rays, and treatment goals. A final plan still requires proper clinical examination and 3D records before surgery.
How long does planning take?
Planning time varies by case complexity, orthodontic needs, and record quality. Patients needing presurgical orthodontics usually require more preparation than selected surgery-first candidates.
Take the next step with an online assessment
If you are considering orthognathic surgery, jaw surgery, Le Fort I, BSSO, genioplasty, or correction of facial asymmetry, an online assessment can help determine whether you may be a candidate and what records are needed next. A personalized review is the safest way to understand which surgical approach fits your anatomy, bite, airway, and aesthetic goals.
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