In the modern aesthetic trend of pursuing exquisite contours and three-dimensional facial features, smooth and exquisite facial shapes are increasingly valued. Many people who are born with wide jaw angles and square faces often have appearance anxiety and even affect their self-confidence because their faces are too masculine and their contours are rigid.
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Jaw reduction surgery, as an important means to improve face shape, has gradually come into the public eye. Jaw angle surgery can significantly improve facial contour problems and can maintain permanent effects.
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This article will comprehensively introduce all aspects of the surgery, including the surgical process of jaw angle surgery, how to recover quickly, and what surgical risks will exist in the future.
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Help you make the right decision in improving facial contours.
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What is jaw angle reduction surgery?
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Jaw angle reduction surgery is one of the surgeries with a relatively high risk factor. It is a surgical method to remove or polish the jaw angle that is too expanded or protruding to improve the facial lines. This operation can enhance the three-dimensional sense of the face and improve the refinement of the face.
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The main goal of this surgery is to adjust the proportion of the lower third of the face, making the face more slender and soft. After the surgery, a more refined and coordinated jawline will usually appear, which is especially suitable for those who want to change from a square face or wide face to a V face.
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Common mandibular angle problems include:
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- Over development of the mandible;
- Bone mandibular expansion;
- Excessive hypertrophy of the masseter muscle leading to visual enlargement of the bones;
- Asymmetry of the left and right sides of the face;
- Fuzzy chin line, unclear jaw line, etc.
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Most of these problems are difficult to cover up with makeup, so surgery has become one of the effective ways to solve the root facial problems.
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People suitable for mandibular angle reduction surgery

Not all people with wide faces are suitable for mandibular angle reduction surgery.
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Before undergoing this type of facial surgery, multiple evaluations are required, such as CT imaging, to determine the cause of the wide face. If the face is wide due to the soft tissue of the face, botox injections can be used to shorten the face width. If it is due to the bones, the mandibular angle bone reduction method is required.
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The following are people suitable for surgery:
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1. People with vigorous mandibular development
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The face is wide due to skeletal reasons, such as the mandibular angles on both sides are obviously prominent, which looks angular and lacks softness.
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2. V-line mandibular osteotomy
Compared with traditional mandibular angle bone shaving, this method has some other operations, such as trimming the front part of the chin, combining the face shape, so that the overall mandibular line is "V" shaped, so that the facial contour is more refined.
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This operation is usually combined with chin osteotomy or silicone prosthesis implantation.
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3. Mandibular bone grinding
If you are worried that the risk of bone shaving is too high, you can choose this method. For individuals whose bones are not particularly prominent, you can choose the grinding method.
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After entering through the intraoral incision, use special equipment to grind the bone edge to be smoother and softer, with less trauma and shorter recovery time. It is suitable for those who need mild improvement.
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4. Combined zygomatic bone reduction
If the reason for the wide face is not only the mandibular angle, but also the zygomatic expansion, the doctor may recommend zygomatic bone inward push or zygomatic arch reduction at the same time. Only in this way can the face be reduced and the wide face be improved.
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5. Face slimming with Botox
For people with less obvious bone but well-developed masseter muscles, similar effects can be achieved through masseter muscle resection or Botox injection, but these methods are different from bone surgery and are suitable for large faces caused by soft tissue.
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Surgical process and postoperative recovery
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1, Preoperative preparation
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The preoperative preparation stage is crucial. No matter what surgery it is, preoperative examinations must be done because it will affect the postoperative recovery speed and surgical effect:
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- The first step is to do a CT scan and facial assessment: confirm the size of the bones, the direction of the nerves and symmetry;
- At the same time, a comprehensive health check-up is required: including blood routine, electrocardiogram, chest X-ray, coagulation function, etc.;
- Quit smoking and drinking before surgery: quitting smoking and drinking one week before surgery will help reduce postoperative complications;
- Some medications need to be stopped during surgery: anticoagulants such as aspirin need to be discontinued;
- Keep the mouth clean: prevent postoperative infection.
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2. Surgical process

- Anesthesia: The first step of the operation, usually general anesthesia;
- Complete the incision route: mainly through the incision inside the mouth to avoid external scars;
- Start the main task, bone processing: cut or grind the mandible according to the design plan;
- Hemostasis suture after bone cutting: absorbable suture is used after surgery, and drainage tube is placed if necessary;
- Postoperative repair work, pressure bandage: wear a head pressure bandage after surgery to control swelling.
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3. Postoperative recovery period
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The first 3 days: the swelling of the face is the most obvious, which may be accompanied by pain, numbness, and difficulty opening the mouth;
The 4th to 7th day: the patient can begin to gradually relieve the swelling and resume eating;
1 month after surgery: normal life can be resumed at this time, most of the swelling subsides, and the initial outline can be seen;
3 months after surgery: the outline is naturally presented, and the facial coordination is improved;
6 to 12 months after surgery: the bone healing is stable, and the effect is finally formed.
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4. Postoperative care recommendations
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Take antibiotics and painkillers as prescribed by the doctor;
Regarding sleeping, sleep with the head elevated to help reduce swelling;
Regarding diet, eat mainly warm and cool liquid foods and avoid chewing;
In addition, maintain oral hygiene and rinse your mouth after each meal;
Finally, avoid strenuous exercise and squeezing the face.
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Postoperative risks and possible complications
1. Nerve damage
The most common is damage to the inferior alveolar nerve, which leads to numbness in the lower lip and chin area after surgery. Mild cases recover within 1 to 3 months, and severe cases may be permanent.
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2. Infection
If oral hygiene is not done properly after surgery, it is easy to cause incision infection, which manifests as redness, swelling, exudation, fever, etc.
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3. Intraoperative/postoperative bleeding
If blood vessels are not treated thoroughly, it may lead to postoperative hematoma formation, which needs to be treated in time.
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4. Asymmetry
Different amounts of bone resection on both sides or deviations in intraoperative operation will cause asymmetric face shape.
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5. Limited mouth opening
Muscle and joint adhesion after surgery may affect the opening function, which requires physical training after surgery to improve.
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Real Case Sharing of Jaw Reduction Surgery
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Emily, 29 years old, is a YouTube anchor. Due to her congenitally prominent mandibular angle, her face looks masculine in front of the camera. After trying face-slimming injections many times without success, she decided to undergo mandibular angle reduction surgery. Preoperative CT scans revealed that her mandibular bones were overdeveloped, but without functional impairment.
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The doctor developed a V-line osteotomy + chin sculpting plan for her.
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The operation was successfully completed under general anesthesia. On the fifth day after the operation, the swelling was obvious and her eating was restricted. However, with oral care and ice compresses, she was able to resume normal life after a week.
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One month later, her face shape changed significantly from the original wide face to a small V-shaped face. She concluded in the video: "My whole temperament has changed, and my confidence in work has also greatly improved."
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Alternatives to jawline bone reduction - Botox and Filler injections

After reading the above, we realize the dangers and long recovery time of jawline bone reduction. So how can we solve the problem of too square facial contour through non-surgical methods?
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You can try to solve the problem of wide face caused by more soft tissue on the face through Botox and filler injections.
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Botox injections can relax muscles, visually reduce the width of the face, make the masseter muscle smaller, and achieve the effect of improving the face shape;
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At the same time, you can also use Filler to improve the shape of the jawline, optimize the smoothness of the jawline, and make the face more refined.
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Conclusion
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Mandibular angle reduction surgery is not a shortcut to "easy beauty". It is a facial plastic surgery project that requires highly professional technical support, a long recovery period, and strict psychological and physical requirements.
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Diaminy offers a range of consumables for light aesthetics, including needles, cannulas, fillers and threads, with complete product certifications and quality assurance.
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