Pain and swelling after surgery: four implants or six

It helps to know in advance that a full arch is real surgery. Several teeth may be removed, bone is shaped and implants placed, all in one session. Afterwards, the face swells and the mouth is sore. For most people it is very manageable, and it improves day by day. This article explains what to expect, what affects it and how far the number of implants plays a part.

A typical first two weeks

The NHS’s advice after dental surgery describes the same pattern for extractions: some pain and swelling for up to two weeks, starting to improve after a day or two, with possible bruising and a stiff jaw.

Does six hurt more than four?

Each implant site is a small surgical wound, so six sites mean a little more tissue disturbed than four. Some people do notice slightly more swelling. But the number of implants is rarely the main factor. What usually matters more:

• Extractions. Removing several teeth, especially with infection or difficult roots, causes much of the soreness.
• Bone shaping. Levelling the jaw adds to swelling.
• Grafts and sinus lifts. These add noticeably to swelling and discomfort. A six-implant plan that needs a sinus lift will usually be more uncomfortable than a four-implant plan that does not.
• Both jaws at once. Swelling above and below at the same time.
• Length of surgery. Longer operations tend to mean more pain afterwards.

What research shows

Research on pain after full-arch surgery specifically is limited. A small study by Kuroi and colleagues in Japan asked 25 implant patients to rate their pain and swelling by phone every two hours on the day of surgery and daily for a week. Factors linked with more pain overall were diabetes or high blood pressure, longer surgery, bone quality, anxiety before surgery, not having taken painkillers beforehand, and swelling. Swelling itself was linked with pain, diabetes or high blood pressure, and bone quality. The number of implants placed was one of the factors measured but was not among those found to matter. The study was small, so treat it as a pointer rather than proof.

Managing pain

• Take the first painkillers before the numbness wears off, as your clinic advises
• Take them regularly for the first two to three days rather than waiting for pain to build
• Use the painkillers your dentist recommends; many people use paracetamol and ibuprofen, but check with your doctor first if you have stomach ulcers, kidney or heart problems, asthma made worse by ibuprofen, or take blood thinners
• Finish any antibiotics you are prescribed
• Rest; avoid heavy exercise for the first days

Managing swelling

• Use ice packs wrapped in a cloth on the cheeks, in short spells, for the first day or two
• Sleep with your head raised on extra pillows
• Avoid hot drinks, alcohol and smoking, which the NHS lists as things to avoid after dental surgery
• Stay hydrated and eat cool, soft food
• After a few days, gentle warmth can help with stiffness, if your dentist agrees

Numbness and tingling

Some people notice numbness or tingling of the lip or chin after lower-jaw implant surgery, because the nerve that supplies feeling to these areas runs through the jaw. Usually it is caused by swelling and fades over days or weeks. The NHS describes the same possibility after wisdom tooth removal, noting it usually gets better but can last weeks or months. Tilted back implants in All-on-4 are placed in front of the nerve’s exit from the bone specifically to keep away from it, and a CBCT scan shows where the nerve runs. If numbness persists beyond the first week or two, tell your dentist.

Sinus symptoms

After upper-jaw surgery, particularly if a sinus lift was done, you may notice a stuffy nose, slight nosebleeds or pressure in the cheek. You will usually be advised not to blow your nose hard, to sneeze with your mouth open and to avoid flying for a period if a sinus lift was done. Ask your clinic for its specific advice. Persistent pressure, a bad smell or discharge from the nose needs checking.

Bleeding

Some oozing is normal for the first day. If bleeding continues, the NHS advises pressing on the area for at least ten minutes with a clean cloth or gauze. People on blood thinners may bleed a little more; never stop them without advice. Bleeding that will not stop with pressure needs urgent help.

Eating

For the first days, cool and soft: yoghurt, smoothies (without a straw if advised), soups that are warm not hot, scrambled eggs, mashed potato. After that, soft food that needs little chewing continues for the months the implants heal, to protect them. See teeth in days.

When to get help

• Swelling that keeps increasing after the third day, or spreads to the eye or neck
• Difficulty swallowing or breathing: call 999
• A high temperature or feeling generally unwell
• Bleeding that does not stop after pressing for ten minutes
• Pain that gets steadily worse instead of better after the first few days
• A bad taste or discharge from the gum

If you are at home in the UK after treatment abroad, call NHS 111 for urgent advice, then let your clinic know. Do not wait for a reply from abroad if symptoms are serious.

Reducing your risk

• Stop smoking before surgery; smoking raises infection risk, as the review by Chrcanovic and colleagues found
• Get diabetes and blood pressure as well controlled as you can
• Tell your dentist if you are anxious; it can be managed
• Plan for someone to help you for the first two days
• Prepare soft food in advance

Looking presentable

Many people worry about how they will look in the first week. Swelling and bruising are most visible around days two to five. If you have an event, a work meeting or video calls coming up, leave a clear week after surgery. Bruising on the neck can be covered with a scarf; it fades from purple to yellow before it disappears.

Questions to ask

• How much swelling should I expect with my plan?
• Will my plan include a graft or sinus lift?
• Which painkillers do you recommend for me, given my medicines?
• Who do I contact out of hours, and how quickly will they reply?
• When is it safe to fly home?

In short

Expect swelling, some bruising and moderate pain for a few days, improving over one to two weeks. Two more implants may add a little swelling, but extractions, grafts, treating both jaws and long surgery make more difference. Plan ahead, take painkillers regularly, keep your head up and your food soft, and know which signs need urgent help. For the operation itself, see surgery length.

Common questions

Does All-on-6 hurt more than All-on-4?

There are two more implant sites, so there may be a little more swelling. Most people find recovery similar. A sinus lift or graft, if six needs one, adds more discomfort than the implants themselves.

How long does swelling last?

Swelling usually builds over the first two to three days and then goes down over the following week. Bruising can take up to two weeks to fade.

What painkillers can I take?

Your dentist will advise. Many people use paracetamol and ibuprofen; check with your doctor if you have stomach, kidney or heart problems or take blood thinners.

When should I worry?

Get urgent help for swelling that spreads or affects breathing or swallowing, a high temperature, bleeding that does not stop with pressure, or pain that gets steadily worse after the third day.

Can I fly home with swelling?

Many patients fly a few days after surgery with some swelling. Follow your clinic's advice, keep painkillers in your hand luggage and keep the head raised where you can.

Sources

1. Kuroi et al. (2015), Journal of Prosthodontic Research — Risk factors for pain and swelling after implant surgery
2. NHS — Wisdom tooth removal: recovery after dental surgery
3. NHS — Ibuprofen for adults
4. NHS — Paracetamol for adults
5. Chrcanovic, Albrektsson, Wennerberg (2015), Journal of Dentistry — Smoking and dental implants

Checked October 2026. Where we give our own view as a clinic, we say so.