All-on-4 Dental Implants Explained

If you have lost most or all of the teeth in a jaw, or you are facing that prospect, you may have come across the term All-on-4. It is a way of replacing a full arch of teeth — the upper set, the lower set, or both — with a fixed bridge that is held in place by dental implants rather than resting on the gums. The name refers to the four implants that typically support each arch.

All-on-4 is a surgical treatment, not a quick cosmetic fix, so it is worth understanding what it involves before deciding whether it might be right for you. This guide explains how the approach works, the stages you can generally expect, who tends to be a candidate, and how it compares with related options such as All-on-6.

How All-on-4 works

With All-on-4, four implants are placed into the jawbone to act as anchors for a full arch of replacement teeth. The implants are small posts, usually made of titanium, that integrate with the bone over time. A bridge carrying the new teeth is then fixed onto these implants, so the whole arch is supported without needing an implant for every individual tooth.

The four implants are usually positioned to make the most of the available bone. Towards the back of the jaw, where bone can be thinner, the rear implants are often placed at an angle to provide stable support while working with the bone that is present. Because the teeth are fixed to the implants, they do not need to be taken out for cleaning in the way a removable denture would, though they still require careful daily care.

It helps to see All-on-4 as one technique within the wider field of dental implants: the principle of replacing tooth roots with implants is the same, but a full arch is restored on a small number of implants rather than one tooth at a time.

The treatment stages

The exact plan depends on your circumstances, but the process generally moves through several stages, and these usually cannot all be completed in a single day.

Assessment. The treating dentist or surgeon carries out an examination and imaging, such as a scan, to check the health of your gums and the amount and quality of your jawbone. This is where suitability is confirmed and the plan is drawn up.

Placement. Any remaining teeth that cannot be saved may need to be removed, and the four implants are placed into the jaw during a surgical procedure. This is normally carried out under local anaesthetic, sometimes with sedation, as discussed with the clinical team.

Healing and osseointegration. The implants need time to fuse with the bone, a process known as osseointegration. This healing period commonly takes some months and varies between individuals. In many cases a set of provisional (temporary) teeth is fitted so you are not left without teeth while healing takes place.

Final teeth. Once the dentist is satisfied that the implants have integrated, the final, permanent bridge is made and fitted. The provisional teeth are a working stage rather than the finished result, and the final teeth are designed with your bite and appearance in mind.

The table below gives a broad overview only; your own timeline is set by the treating clinician.

Stage	Roughly involves	General timing
Assessment & placement	Examination, scans, implant surgery	Initial visit
Healing	Osseointegration, provisional teeth	Several months
Final teeth	Fitting the permanent bridge	A later stage

Who is a candidate?

All-on-4 is not appropriate for everyone, and it would be misleading to suggest that it is. Candidacy is decided by the treating dentist or surgeon after an in-person assessment, and the amount and quality of your jawbone is one of the most important factors, because the implants rely on bone to anchor into.

As a broad guide, All-on-4 may be considered for people who have lost most or all of the teeth in an arch, or whose remaining teeth are failing. Long-standing tooth loss can lead to bone loss in the jaw, so the assessment will look closely at whether there is enough bone, or whether additional steps may be needed. General health also matters: conditions that affect healing, gum disease, and smoking can all influence whether the treatment is suitable and how well it may heal. An honest conversation about your medical and dental history is an important part of this stage.

All-on-4 vs All-on-6 and other options

All-on-4 is one of several ways to replace missing teeth, and it sits alongside related approaches. The most closely related is All-on-6, which follows the same principle but uses six implants per arch instead of four. Spreading the load across more implants can be relevant depending on your bone volume and bite, whereas All-on-4 uses fewer implants. Neither is better in general terms — the right choice depends on your individual assessment, and the treating dentist will explain which they consider appropriate for you.

Other routes include single or multiple individual implants where only some teeth are missing, conventional dentures, and, for individual damaged teeth, restorations such as crowns and bridges. Each has its own trade-offs in stability and maintenance, and comparing them properly needs a clinical opinion rather than a decision made from an article alone.

Having All-on-4 in Türkiye

We are a medical-tourism facilitator. We coordinate treatment with accredited, Ministry of Health–authorised partner clinics in Türkiye, and the treating dentist or surgeon carries out your assessment and any procedure. We do not diagnose or decide your treatment ourselves — that is always the clinician’s role.

If you would like guidance, you can request a free, no-obligation personalised treatment plan. You may be asked to share photographs and information about your dental and medical history so the treating dentist can give an initial view on whether All-on-4, All-on-6 or another approach might be suitable. Because the healing period plays out over months, it is worth planning around the stages from the outset; our patient journey overview explains what a trip typically looks like.

Aftercare is an important part of the picture. Once you return to the UK, looking after implant-supported teeth — thorough daily cleaning around the implants and bridge, and routine dental check-ups — helps protect the result over the long term. Because outcomes and longevity vary from person to person, it is sensible to ask the treating dentist what maintenance, follow-up and possible future repair your treatment may involve before you go ahead.