Protruding jaw (also known as overbite) is a common dental–skeletal condition that can significantly affect both facial aesthetics and self-confidence. In addition to cosmetic concerns, it may also cause functional issues such as difficulty chewing, speech problems, and temporomandibular joint (TMJ) disorders. Orthognathic surgery for overbite correction is a comprehensive and highly effective treatment that helps restore facial balance, proper bite alignment, and long-term confidence.
I. What is Overbite and What Causes Its?
An overbite occurs when the upper jaw, lower jaw, or both develop disproportionately, leading to improper alignment of the teeth and bite. Common causes of overbite include:
- Genetics factors: Jaw misalignment is often inherited within families
- Bad habits: Thumb sucking, tongue thrusting, and mouth breathing since childhood can affect jaw development
- Growth disorders: Irregular bone growth or trauma during development may result in jaw misalignment
II. When is Overbite Correction Surgery Recommended?
Overbite surgery is typically indicated in the following cases:
- Severe skeletal overbite: Cannot be corrected with orthodontics alone.
- Facial asymmetry: Noticeably affects facial harmony and confidence.
- Functional problems: Difficulty chewing, speaking, or TMJ-related discomfort.
III. Overbite Correction Surgery Techniques.
1. Upper Jaw Surgery (Le Fort I Osteotomy)
- Purpose: Corrects protrusion, angulation, or asymmetry of the upper jaw
- Technique: A horizontal osteotomy (Le Fort I) is performed to correctly reposition the upper jaw, which is then stabilized using plates or screws
- Advantage: Improves both facial aesthetics and bite function
- Disadvantage: Temporary numbness in the cheek area may occur
2. Lower Jaw Surgery (BSSO - Bilateral Sagittal Split Osteotomy)
- Purpose: Corrects a retruded or misaligned lower jaw
- Technique: The lower jaw is surgically split, repositioned, and stabilized with titanium plates or screws
- Advantage: Provides long-term stability and functional improvement
- Disadvantage: Temporary disturbance in the lower jaw nervous system may occur
3. Double Jaw Surgery (Two-Jaw Surgery)
- Purpose: Recommended for complex overbite cases or significant asymmetry in both jaws
- Technique: Combines upper jaw (Le Fort I) and lower jaw (BSSO) surgery, sometimes with genioplasty (chin surgery) for the most optimal aesthetic results
- Advantage: Comprehensive correction of both function and facial structure
- Disadvantage: Requires advanced surgical expertise and longer recovery time
IV. Post-Operative Care - Key to Optimal Results
Post-surgical care is essential to ensure long-lasting results.
1. Immediate phase (0-7 days)
- Hospital monitoring: Usually 1 day to monitor swelling, pain, and complications
- Diet: Liquid diet only; avoid chewing and excessive jaw movement
- Wound care: Gentle cleaning with antiseptic solution to prevent infection
2. Early recovery phase: (2-4 weeks)
- Diet: Gradually transition to soft foods, avoid excessive chewing
- Physical therapy: Begin gentle movements to restore mobility
3. Late recovery phase: (4-12 weeks)
- Regular follow-up visits to monitor bone healing and stability
- Orthodontic adjustments (if needed) to finalize bite alignment
V. Follow-Up Schedule Post-Operation
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1 week: Check surgical site, treat swelling, or infection (if needed)
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1 month: Evaluate bone healing and occlusion
VI. Is Overbite Surgery Safe?
Overbite correction surgery is a safe and effective procedure when performed by a well-experienced team of doctors at trusted medical facilities.
VII. Conclusion
Overbite correction surgery not only enhances facial aesthetics but also restores chewing function and speech clarity, significantly improving overall confidence and quality of life. With advancements in modern medical technology, the procedure has become increasingly safe, effective, and minimally invasive.
If you are experiencing issues related to an overbite, consult a qualified specialist at Viet My Plastic Surgery Hospital for a comprehensive evaluation and personalized treatment plan. We guarantee to bring you a confident smile and a well-balanced look.
Related topic:
+ Underbite Correction Surgery
* The result achieved also depends on each individual’s physiology.
