An underbite — medically known as mandibular prognathism — occurs when the lower jaw protrudes past the upper jaw. For affected individuals, this causes functional challenges, aesthetic concerns, and, in many cases, long-term dental problems.
Fortunately, modern corrective jaw surgery (orthognathic surgery) can reverse these issues with predictable, stable results. The dramatic underbite surgery before and after transformations testify to both improved jaw function and facial balance.
In this comprehensive guide, we’ll cover:
- What underbite is
- Why surgery may be necessary
- What underbite surgery involves
- Expected changes in before and after results
- Recovery timeline
- Risks and costs
- How to qualify
- Why choosing the right surgeon matters
- And more
This resource supports the core page you shared — highlighting real outcomes while educating patients on what to expect.
What Is an Underbite?
An underbite is a type of malocclusion — a misalignment between the upper and lower teeth.
In a normal bite, the upper teeth slightly overlap the lower teeth. In an underbite, the opposite is true: the lower jaw extends forward so that the lower teeth sit in front of the upper teeth.
Common Signs of an Underbite
- Lower jaw protrudes ahead of the upper jaw
- Speech difficulties
- Chewing challenges
- Excessive wear of front teeth
- Jaw pain or TMJ issues
- Facial imbalance
Underbites can range from mild to severe. While orthodontics or growth modification may help younger patients, significant skeletal discrepancies often require orthognathic surgery.
Why Underbite Surgery May Be Recommended
Not all underbites require surgery. However, in moderate to severe cases — or when the skeletal structure, not just the teeth, is the cause — orthognathic surgery becomes the most effective treatment.
isn’t only about appearance: it’s about long-term function, comfort, and oral health. Patients often experience improvements in chewing, speaking, breathing, and overall confidence.Functional Benefits
- Balanced bite for efficient chewing
- Reduced risk of excessive tooth wear
- Improved speech clarity
- Better jaw joint alignment
- Less strain on facial muscles
Aesthetic Benefits
- Harmonized facial profile
- Balanced chin projection
- Enhanced symmetry between upper and lower face
How Underbite Surgery Works
Underbite surgery — formally known as orthognathic surgery — involves repositioning the jaws by carefully cutting and realigning bone.
The procedure typically includes:
- Precise cuts in the jawbones
- Repositioning of upper and/or lower jaw
- Fixation with plates and screws
- Closure with dissolvable sutures
This process is customized based on each patient’s anatomy and goals.
Upper Jaw, Lower Jaw, or Both?
- Some patients may require surgery on just the lower jaw
- Others benefit from both upper and lower jaw repositioning
- The surgical plan depends on bite analysis and 3D imaging
Prof. Dr. Celal Çandırlı uses advanced digital imaging and surgical planning software to visualize outcomes before the operation — improving precision and predictability.
Underbite Surgery Before and After: What to Expect
The changes after surgery can be striking.
Before Surgery
Many patients with underbites have:
- Jaw misalignment
- Prominent lower jaw
- Bite problems
- Functional symptoms like chewing difficulty
After Surgery
Most patients see:
- Corrected bite alignment
- More proportional facial balance
- Easier chewing
- Less strain on TMJ
- Increased confidence
Below are some of the most common areas where before and after improvements occur.
1. Facial Profile Transformation
A severe underbite can make the lower face appear elongated or protrusive. After corrective surgery, the lower jaw is aligned with the upper jaw, creating a more balanced and natural profile.
This change isn’t just cosmetic — it often improves the overall harmony of the facial structures.
2. Functional Quality of Life Improvements
Many patients report:
- Easier biting and chewing
- Clearer speech
- Less jaw fatigue
- Greater comfort in everyday activities
These benefits are especially significant for athletes, speakers, and anyone who uses their jaw muscles frequently.
Before and After Healing Timeline
Understanding recovery helps set realistic expectations.
Immediate Postoperative Period (First 1–2 Weeks)
- Swelling and bruising peak
- Soft diet recommended
- Gentle jaw movement encouraged
Intermediate Recovery (2–6 Weeks)
- Swelling decreases gradually
- Pain significantly reduces
- Normal activities can resume
Long-Term Healing (3–6 Months)
- Hard tissues fully stabilize
- Final results become more apparent
- Orthodontics may continue
Prof. Dr. Celal Çandırlı’s evidence-based postoperative protocols ensure safer healing and better outcomes.
Will My Underbite Come Back After Surgery?
Relapse is a common concern. However, when surgery is combined with proper orthodontics and postoperative care, long-term stability is very high.
Who Is a Candidate for Underbite Surgery?
Not everyone with a mild underbite needs surgery. Ideal candidates typically have:
- Skeletal jaw misalignment
- Bite problems not correctable with braces alone
- Chewing or speaking difficulties
- Facial imbalance causing concern
- Persistent jaw pain or TMJ symptoms
A thorough clinical exam, dental history, and 3D imaging are used to determine eligibility.
Real Results: Interpreting Before and After Photos
Underbite surgery before and after photos are more than cosmetic comparisons — they document functional improvement.
What You Can See in Before vs. After Images
- Alignment of upper and lower teeth
- Chin and jaw position changes
- Facial symmetry improvements
- Profile balance
- Smile harmony
These visual outcomes help patients understand what real surgical change looks like in day-to-day life.
Risks and Considerations
Like all major surgery, orthognathic correction comes with risks — though serious complications are rare.
Possible Risks
- Temporary numbness
- Infection
- Relapse (rare with proper care)
- Need for minor adjustments
Prof. Dr. Celal Çandırlı follows stringent surgical protocols and safety checks to minimize risk and maximize outcomes
Underbite Surgery Cost Considerations
Costs vary by:
- Geographic location
- Hospital or clinic
- Surgeon’s expertise
- Imaging and anesthesia
- Orthodontic preparation
Including orthodontics both before and after surgery often affects total cost.
Patients considering international options should factor in travel, stay, and postoperative follow-up.
| Aspect of Life | Benefits After Underbite Surgery |
| Overall Quality of Life | Many patients describe life after underbite surgery as truly life-changing, with improvements that go far beyond cosmetic appearance. |
| Improved Confidence | A more balanced facial profile often leads to increased self-esteem, greater confidence in social interactions, and improved emotional well-being. |
| Better Oral Health | Proper bite alignment helps reduce uneven tooth wear, lowers strain on the jaw joints, and supports long-term dental health. |
| Functional Freedom | Patients commonly experience easier chewing, clearer speech, and smoother jaw movement, making everyday activities more comfortable and efficient. |
Why Choose Prof. Dr. Celal Çandırlı for Your Underbite Correction?
When it comes to transformative procedures like underbite surgery, the surgeon’s experience matters more than anything.
Prof. Dr. Celal Çandırlı is renowned for:
- Precision surgical planning
- 3D imaging and virtual surgical simulation
- Customized, patient-centered treatment
- International patient support
- Predictable, aesthetic results
<p> His approach blends the science of skeletal correction with an eye for natural facial balance — ensuring results that look harmonious and feel functional. </p>