# Square Jaw Reduction Surgery | Frontal & Side Jaw Slimming

**URL:** https://www.patients.community/t/square-jaw-reduction-surgery-frontal-side-jaw-slimming/14809
**Category:** Plastic Surgery in Korea
**Created:** [September 10, 2026, 4:01am UTC](https://www.patients.community/t/square-jaw-reduction-surgery-frontal-side-jaw-slimming/14809 "2026-09-10T04:01:26Z")
**Posts on this page:** 1
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### Author: ![Facelineplasticsurgery](https://avatars.discourse-cdn.com/v4/letter/f/b5ac83/32.png) [@Facelineplasticsurgery](https://www.patients.community/u/Facelineplasticsurgery)
#### Post date: [September 10, 2026, 4:01am UTC](https://www.patients.community/t/square-jaw-reduction-surgery-frontal-side-jaw-slimming/14809/1 "2026-09-10T04:01:26Z")

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At **Faceline Plastic Surgery** , square jaw reduction is planned according to whether facial width comes primarily from the jaw angle, mandibular body, muscle, or a combination of these structures.

Conventional jaw-angle surgery mainly removes the rear corner of the mandible, which can soften the side profile but may have limited effect on how wide the face appears from the front. Faceline’s approach considers **both frontal facial width and side-profile jaw shape** when selecting the appropriate surgical techniques.

Depending on the patient’s anatomy, treatment may involve **cortical bone resection, jaw angle resection, long curved-line jaw reduction, masseter muscle reduction, and buccal fat removal**.

### Who May Consider Square Jaw Reduction?

This approach may be considered for patients who:

- Have a wide lower face when viewed from the front
- Have a prominent or angular jaw angle visible from the side
- Have width along the mandibular body rather than only at the jaw angle
- Want to reduce frontal facial width as well as side-profile prominence
- Have a combination of bone and soft-tissue volume contributing to a square jaw appearance
- Want a smoother, more continuous jawline
- Are seeking a softer V-line while maintaining natural facial proportions

A detailed consultation, facial examination, and 3D imaging are required to determine the underlying cause of jaw width and the most appropriate treatment combination.

### What Areas Can Square Jaw Reduction Address?

- **Cortical bone** — Reduces the outer layer of mandibular bone to address certain types of frontal jaw width.
- **Jaw angle** — Reshapes the rear mandibular corner to soften an angular side profile.
- **Mandibular body** — Long curved-line reduction can refine the jaw continuously from the angle toward the front of the jaw.
- **Masseter muscle** — May be considered when muscle volume contributes to lower-face width.
- **Buccal fat** — In selected cases, buccal fat reduction may complement other contouring techniques.

The specific combination and degree of correction depend on the patient’s skeletal and soft-tissue anatomy.

### Meet the Specialist

**Dr. Jin-soo Lee** , Representative Director and Double Jaw & Facial Contouring Specialist at Faceline Plastic Surgery, has performed more than **20,000 double-jaw and facial contouring procedures**.

As Director of the **F-LINE Facial Contouring Research Institute** , Dr. Lee has been involved in developing Faceline’s approach to frontal-effect jaw reduction.

His treatment planning distinguishes between **frontal facial width and side-profile jaw prominence** before determining the appropriate surgical technique. This allows the treatment to focus on the structural cause of the square jaw appearance rather than applying jaw-angle reduction as a standardized solution.

### How Is Square Jaw Reduction Planned?

The treatment generally involves:

1. **Diagnostic facial analysis** — Jaw width and contour are assessed from both frontal and side-profile perspectives.
2. **3D CT imaging** — Detailed imaging evaluates the mandibular angle, body, bone thickness, and surrounding structures.
3. **Technique selection** — The surgical team determines whether cortical bone, jaw angle, mandibular body, muscle, buccal fat, or a combination requires treatment.
4. **Customized surgical planning** — The extent and location of correction are planned according to individual facial proportions.
5. **Surgical procedure** — The selected techniques are performed through an intraoral approach under general anesthesia.
6. **Postoperative follow-up** — Healing, swelling, and changes to the jawline are monitored as recovery progresses.

### Recovery and Expected Results

Patients may experience **swelling, bruising, discomfort, and temporary numbness** during the initial recovery period. The extent of swelling and recovery time can vary depending on the combination of procedures performed.

As swelling gradually decreases over the following weeks and months, the final jawline contour becomes clearer. Because the treatment modifies the underlying bone and, where appropriate, muscle or fat volume, the intended contour is designed to be long-lasting once healing is complete.

### Why Choose Faceline for Square Jaw Reduction?

Faceline Plastic Surgery’s approach includes:

- Comprehensive evaluation of both frontal and side-profile jaw concerns
- Customized combinations of bone and soft-tissue contouring techniques
- **Cortical bone and long curved-line reduction** for selected frontal-width patterns
- Jaw angle reduction to refine side-profile prominence
- Consideration of masseter and buccal fat volume when relevant
- An intraoral approach designed to avoid external facial scars
- An experienced facial contouring surgical team
- Support for international patients

Square jaw reduction is **not a one-size-fits-all procedure**. A wide face may result from different combinations of bone structure, muscle volume, and soft tissue, so the appropriate treatment depends on the individual diagnosis.

At **Faceline Plastic Surgery** , the goal is to create a smoother and more balanced jawline by addressing the specific structures contributing to facial width, rather than focusing only on the jaw angle.

If your jaw looks wide from the front, angular from the side, or both, a detailed facial bone evaluation can help determine which combination of contouring techniques is most appropriate for your facial structure.