エラ骨切り（下顎角形成）: Downtime
- Downtime at a glance
- Recovery timeline: treatment day to final result
- Common symptoms
- When can I do what? (Daily-life restrictions)
- Pain and anesthesia
- Tips for a smoother recovery
- Risks and side effects (the honest version)
- Spacing and combining with other procedures
- Who it may suit / who should be cautious
- Frequently asked questions
Downtime at a glance
Swelling typically peaks 2–3 days after surgery, and major swelling settles in about 2 weeks. The final contour is generally said to take 3–6 months, and many people set aside 1–2 weeks off work.
Typical downtime is Major swelling lasts about 2 weeks (peaking 2–3 days after surgery). It is generally said to take 3–6 months for puffiness and stiffness to fade and the contour to approach its final shape (varies from person to person), and most people feel comfortable being seen in public after For remote work or jobs where you can wear a mask, 1–2 weeks after surgery is a common guideline. For customer-facing work, filming, or other public-facing roles, 2–4 weeks or later is considered safer, depending on how the swelling subsides. Recovery varies from person to person. How much swelling or bruising appears varies from person to person, depending on constitution and the extent of treatment.
Recovery timeline: treatment day to final result
Surgery is most often performed under general anesthesia; depending on the facility, you may go home the same day or stay one night. Compression with a face band or similar garment begins, and you rest quietly to prevent bleeding. Because there are wounds inside the mouth, meals start with gentle options such as fluids, jelly, or liquid foods. Resting with your head elevated is said to help reduce swelling.
Swelling builds during this period. Depending on the facility, drains (tubes that release blood) may be removed and a follow-up visit scheduled. Keeping the mouth clean, for example with a medicated mouthwash, is considered important for preventing infection. Continue resting while controlling pain with medication.
This is around the peak of the swelling. The lower half of the face may look large, and bruising may appear to spread from under the chin to the neck, but in most cases this settles over time. Meals remain centered on soft foods such as rice porridge and soup, and compression continues exactly as directed by your doctor.
The major swelling gradually begins to subside. A follow-up examination takes place, and stitches inside the mouth are removed if needed (dissolvable stitches may not require removal). Round-the-clock compression may be eased in stages, such as nighttime-only wear. This is a reasonable point to start thinking about returning to remote work or going out with a mask.
Major swelling has settled considerably, and many people feel comfortable going out with a mask on. Bruising also tends to fade. Meals gradually return to normal, though it is safer to keep avoiding hard foods for now. This is a typical point to discuss resuming light exercise with your doctor.
Visible swelling has largely subsided, and for many people daily life mostly returns to normal. Puffiness, stiffness, and numbness may remain, but they tend to ease gradually. This is a typical point to discuss resuming strenuous exercise and saunas with your doctor.
Puffiness fades and the change in the jawline becomes easier to appreciate. Numbness continues to improve for many people, though the pace of sensory recovery varies from person to person. It is safest to treat the contour at this stage as still a work in progress.
Puffiness and stiffness resolve and the contour approaches its final shape. Bone healing has also progressed, and this is generally when the result can be evaluated. If concerns such as asymmetry or numbness remain, continue follow-up at the medical institution where you had the surgery and discuss them as your recovery is monitored.
Bars show approximate swelling levels (individual results vary).
Common symptoms
| Symptom | Likelihood | When it appears | How long it lasts | Notes |
|---|---|---|---|---|
| Severe swelling (cheeks to jawline to neck) | High | Immediately after surgery | Peaks at days 2–3; major swelling lasts about 2 weeks | Because bone is removed, swelling tends to be pronounced. There may be a period when the lower half of the face looks noticeably larger, but it generally subsides over time. |
| Bruising | High | Day of surgery to a few days after | 2–3 weeks | Gravity can make bruising appear to spread from under the chin down the neck, and occasionally toward the chest. The color tends to fade as it shifts from bluish purple to yellow. |
| Pain and discomfort when moving the mouth | High | Immediately after surgery | A few days to 1 week | This is often said to be manageable with prescribed pain medication, but movements of the jaw — talking, chewing — may cause twinges. |
| Difficulty opening the mouth or chewing (restricted opening, chewing discomfort) | High | Immediately after surgery | Several weeks to about 1 month | Swelling and muscle stiffness can temporarily make it hard to open the mouth. Meals are reintroduced gradually, starting with soft foods. |
| Numbness around the lower lip and chin (reduced sensation) | Medium | Immediately after surgery | Several weeks to several months | Because the surgery works near nerves that run through the bone (the inferior alveolar and mental nerves), temporary numbness can occur. Most cases are said to recover gradually, but in rare cases it can be prolonged. |
| Residual puffiness and contour stiffness | Medium | After the major swelling subsides | 1–3 months (final result at 3–6 months) | Even after visible swelling goes down, subsurface puffiness and firmness can make the change in contour hard to see for a while. This is a period for waiting patiently. |
When can I do what? (Daily-life restrictions)
| Activity | Typically OK from | Key point |
|---|---|---|
| Compression (face band, etc.) | Follow your doctor's instructions on when to remove it (practices vary by facility — e.g., all day for a few days to 1 week, then nighttime only for several weeks) | Compression helps reduce swelling and encourages the skin to conform to the new contour. Removing it early on your own judgment may prolong swelling or a sense of laxity, so wearing it as instructed is recommended. |
| Meals | Fluids and jelly-type foods for the first day to a few days; then soft foods, with a gradual return to a normal diet over 2–4 weeks | Because there are wounds inside the mouth, it is safer to avoid hard, hot, or spicy foods for a while. Also go easy on foods that require opening the mouth wide. |
| Brushing teeth / rinsing | From the day of surgery, following your doctor's instructions (such as using a medicated mouthwash) | Keeping the mouth clean is considered very important for preventing infection. Keep the toothbrush away from the wounds and care for the area gently as instructed. |
| Washing your face | From the next day, gently (whenever the compression garment can be removed) | Take care not to rub hard or press on the jawline. |
| Makeup | Around a few days to 1 week after surgery (depending on swelling and the compression garment) | Because the incisions are inside the mouth, makeup on the skin itself can generally be resumed relatively early, but it may be impractical while the compression garment is being worn. |
| Shower | From the neck down, often from the next day (with your doctor's approval) | Resume hair washing and care around the face in stages, based on the condition of the compression garment and the wounds. |
| Bathing (soaking in a tub) | Around 1–2 weeks after surgery | Increased circulation may raise the risk of swelling and bleeding, so it is safer to avoid long soaks and start with short baths. |
| Alcohol | Around 2 weeks after surgery (with your doctor's approval) | Because increased circulation can prolong swelling and bruising, it is considered safest to abstain at least until the major swelling has subsided. |
| Exercise | Light exercise from about 2 weeks; strenuous exercise from about 1 month | Exercise that raises blood flow can cause swelling to flare up again. Discuss the timing of your return with your doctor based on your progress. |
| Sauna / hot stone spa | Around 1 month after surgery | High-temperature environments may prolong swelling and puffiness, so it is safer to hold off until you are approaching the final result. |
| Smoking | Follow your doctor's instructions (abstaining for at least several weeks after surgery is recommended) | Smoking impairs blood flow and has been noted as potentially affecting wound healing and bone union. If possible, quitting before surgery is advised. |
| Facial massage, sleeping face down, resting your chin on your hand | Avoid for 1–3 months (resume with your doctor's approval) | Strong pressure on the bone-cutting sites may lead to pain, deformation, or interference with healing. Sleeping on your back with your head elevated also helps manage swelling. |
Pain and anesthesia
The typical pain level is Moderate. The procedure is generally performed under general anesthesia (sometimes combined with intravenous sedation or local anesthesia, depending on the facility). Anesthesia methods and postoperative pain management differ by facility, so confirm the details with your doctor in advance. For the first several days, pain and heaviness at the bone-cutting sites, along with twinges when moving the jaw, are common, but this is often said to be manageable with prescribed pain medication. The pain itself settles within about a week for many people, while difficulty opening the mouth and discomfort when chewing can last somewhat longer. How it feels varies from person to person.
Tips for a smoother recovery
- For the first 2–3 days, as swelling builds toward its peak, cooling as instructed by your doctor and resting with your head above heart level are said to help reduce swelling.
- Wearing the compression band for the full instructed period and hours tends to help swelling and puffiness subside sooner. Avoid stopping it on your own judgment.
- Continuing oral-hygiene care, such as using a medicated mouthwash, helps prevent infection — which in turn helps keep downtime from dragging on.
- Holding off on alcohol, strenuous exercise, saunas, long baths, and other activities that sharply increase circulation until the recommended time is said to help prevent swelling from flaring up again.
- If you have an important event such as a wedding or photo shoot, it is reassuring to have the surgery at least 3 months in advance (ideally 6 months), allowing not only for the 2 weeks of major swelling but also for the time it takes the puffiness to fade.
Risks and side effects (the honest version)
- Bleeding and hematoma: Bleeding may continue after surgery, or a hematoma (a collection of blood) may form; depending on severity, treatment or reoperation may be required.
- Infection: Because incisions are made inside the mouth, infection can occur depending on oral hygiene. See a doctor promptly if you have fever, worsening swelling, or persistent severe pain.
- Numbness and reduced sensation: Because the surgery works near the inferior alveolar and mental nerves, numbness around the lower lip and chin can occur. Most cases are said to head toward recovery within several weeks to several months, but in rare cases it can persist long term.
- Asymmetry of facial movement: The marginal mandibular branch of the facial nerve can be affected, causing temporary asymmetry in the movement of the corners of the mouth. Most cases are said to recover over time, but confirm the outlook with your doctor.
- Risks related to the final result: Asymmetry, removing too much or too little bone, or a step-off along the cut line (a "second angle") can occur, and depending on severity, revision surgery may be considered.
- Sagging: Because bone volume is reduced, sagging along the jawline has been noted as a possible concern depending on age and skin condition. Careful assessment of suitability is important.
- Restricted mouth opening and chewing discomfort: Symptoms such as difficulty opening the mouth or discomfort when chewing can persist temporarily.
- Risks associated with general anesthesia: The possibility of allergic reactions or complications from anesthesia is not zero. Always disclose any medical conditions, medications, and allergy history in advance.
- Recovery and results vary greatly from person to person with this surgery. Always undergo an examination and counseling with a physician — including an assessment of whether you are a suitable candidate — and decide only after thorough discussion.
Spacing and combining with other procedures
Because major swelling is said to take about 2 weeks to subside and the contour 3–6 months to settle, it is reassuring to have the surgery at least 3 months (ideally 6 months) before a big event such as a wedding or photo shoot. Avoid last-minute surgery, and plan your schedule with plenty of margin in consultation with your doctor. If revision or repeat bone surgery is being considered, the result needs to be evaluated after the bone has healed and the puffiness has resolved, so it is generally said that at least 6 months to 1 year should pass before making that decision. Always discuss the timing and suitability with the medical institution where you had the surgery, or with a doctor experienced in revision surgery.
| Combined procedure | Timing | Wait time | Reason |
|---|---|---|---|
| Chin Bone Surgery (Genioplasty) | Wait required | Sometimes performed at the same time (at the doctor's discretion) | To balance the entire jawline, jaw and chin bone surgery is sometimes planned for the same day. Combined surgery places greater strain on the body and causes more swelling, so the doctor makes an overall judgment on suitability and safety. |
| Cheek & Under-Chin Liposuction | Wait required | May be done the same day, or in stages after the swelling settles | This combination is sometimes considered as part of overall facial contouring. Whether to do it on the same day or separately is decided by the doctor, weighing the amount of fat, the skin's condition, and the strain on the body. |
| Jaw Botox (Masseter Injection) | Wait required | From about 3 months after surgery (at the doctor's discretion) | While postoperative swelling and puffiness remain, the contour cannot be evaluated and the need for injections is hard to judge. It may be considered if masseter fullness still bothers you after bone surgery, but discuss the timing with your doctor based on your progress. |
| Thread Lift / Surgical Facelift (Sagging Treatments) | Wait required | From about 6 months after surgery, once the final result can be confirmed | Any sense of sagging after bone surgery can change as the puffiness fades. It is considered safest to evaluate the final result first, and then decide whether treatment is needed. |
| Hyaluronic Acid Filler (Contour Fine-Tuning) | Wait required | From about 3–6 months after surgery | Injecting while swelling and puffiness remain makes it easy to misjudge the amount, so it is generally said to be best considered as a fine-tuning step once the contour is close to its final shape. |
Who it may suit / who should be cautious
May suit you
- Those whose wide jaw is mainly caused by bone structure (the shape of the mandibular angle)
- Those who did not see enough change with injectable treatments such as masseter Botox
- Those who want to address an angular jawline at its structural root
- Those who can set aside about 2 weeks of downtime and several months for recovery
- Those who understand the risks and limitations and want to decide after thorough consultation with a doctor
Consider carefully
- Those whose wide jaw is mainly due to the masseter muscles or fat (injectable treatments, liposuction, or other options may be more suitable)
- Those with medical conditions that make general anesthesia risky (such as heart or respiratory disease)
- Those who are pregnant or breastfeeding
- Those with significant jaw symptoms such as temporomandibular joint disorder (a prior consultation with a doctor is required)
- Those who cannot accommodate postoperative compression, dietary restrictions, and a longer recovery period
- Those whose skeletal growth is not yet complete