What to expect during All-on-4 surgery, step by step

All-on-4 replaces a full row of missing or failing teeth with a fixed bridge held in place by four implants, done in a single surgical visit. It’s a bigger day than a routine implant, and knowing the sequence ahead of time makes it far less intimidating. Here’s what the appointment and the weeks after generally look like for All-on-4 and All-on-6 patients in Chicago.

Before surgery day

Your provider will have already taken a CT scan to map bone volume, nerve position, and sinus location, then planned exactly where each of the four implants will go. Most practices review this plan with you in a separate consultation so surgery day itself is just execution, not decision-making. You’ll get instructions on eating, medication, and arranging a ride home if you’re using sedation beyond local anesthesia.

The surgery itself

Once you’re sedated or numbed, the remaining teeth in that arch are removed if they haven’t been already, and the jawbone is prepared. The surgeon places four implants at calculated angles, often tilting the back two to anchor into denser bone and avoid the sinus or nerve canal. A temporary, fixed bridge is attached to the implants before you leave, so you walk out with a full set of teeth rather than a gap.

Step	What happens	Typical time
Extractions (if needed)	Remaining teeth in the arch removed	30-60 min
Implant placement	Four implants set at planned angles	1-2 hours
Temporary bridge fitting	Fixed provisional attached same day	30-45 min
Healing period	Bone fuses to implants	4-6 months
Final bridge	Permanent prosthesis placed	Single visit once healed

The first two weeks

Expect swelling that builds for the first 48 to 72 hours before it starts to go down, plus bruising for some patients. A soft-food diet is standard for the first several weeks; the temporary bridge isn’t built to handle hard chewing yet. Most people take three to five days off work or normal routines, longer if the job is physically demanding. Follow-up visits in the first two weeks let the surgeon check healing and adjust the temporary bite if anything feels off.

Healing and the wait for the final bridge

The implants need time to fuse with the bone, a process called osseointegration, before they can safely support a permanent bridge. That’s usually 4 to 6 months, sometimes longer in the upper jaw where bone tends to be softer. During this stretch you’re living on the temporary bridge, which some patients find noticeably different in feel and bite strength compared to the final version. It’s worth asking your provider directly what their average timeline has looked like for patients in a similar situation to yours, rather than assuming every case runs the same.

What separates a smooth case from a rough one

The biggest variable isn’t the surgery itself, it’s the planning that happens before it. Providers who use 3D imaging to map implant position, rather than relying on a flat X-ray and guesswork, tend to place implants at angles that hold up better long-term. Ask how many All-on-4 cases the surgeon has personally handled, whether they do the surgical and restorative work in-house or split it across two offices, and what their protocol is if an implant doesn’t integrate properly. A provider willing to answer these in detail, with real numbers, is usually a safer bet than one who glosses over specifics.

Life on the temporary bridge

Most patients describe the first month as an adjustment period rather than full normalcy. Chewing efficiency on the temporary bridge is noticeably lower than on natural teeth or the eventual permanent bridge, so sticking to soft foods, scrambled eggs, soup, pasta, fish, isn’t just a suggestion for week one, it protects the implants while they’re at their most vulnerable. Speech can feel slightly different for a few days too, since the shape of the temporary bridge differs from your natural bite. Both of these tend to resolve well before the permanent bridge goes in.

This is general information, not a substitute for a consultation with your own surgeon, who can walk through your specific bone structure, health history, and realistic timeline. Our methodology explains how we evaluate providers on training, transparency, and verified patient feedback, and the Chicago, IL Dental Implants Provider Guide can help you compare options once you know what to expect.