Which is cheaper, All-on-4 or multiple single implants?

All-on-4 tends to be the more cost-effective full restoration, because only four implants are placed and elaborate bone augmentation is not needed in most cases. Six to eight single implants with bone augmentation and individual prosthetic work are often 30 to 60 per cent more expensive in total. We do not quote blanket figures, because they depend on the implant system and the effort involved. You receive a written cost estimate before any treatment.

With All-on-4, do I really get fixed teeth on the same day?

In many cases, yes. If the implants sit firmly enough in the bone, a provisional fixed bridge can be placed on the surgery day. You then leave the practice with fixed teeth. The definitive bridge follows after three to four months of healing. Whether immediate loading is possible is decided based on the stability measured during surgery.

Do I need bone augmentation for a full restoration?

With All-on-4, usually not, because the posterior implants are tilted and so use the bone already present. With multiple single implants, bone augmentation or a sinus lift is more often needed in the posterior upper jaw. We assess how much bone is available with a 3D image before treatment.

What happens if an implant is lost with All-on-4?

Because the bridge rests on only four implants, losing one support affects the whole system and usually requires a larger intervention. With single implants only the affected area is involved and can be repaired locally. Implant loss is very rare in the first years. With high bite force we often recommend six implants instead of four, to distribute the load better.

How long does an All-on-4 restoration last?

The implants have survival rates above 95 per cent over ten years in studies. The bridge they carry lasts around 10 to 20 years, depending on load and care. Individual parts such as veneers may show wear in that time and can be repaired. Consistent oral hygiene and the six-monthly aftercare with implant checks are decisive for lifespan.

All-on-4 or multiple single implants. Which full restoration when.

One full restoration, two concepts

When a jaw is completely or nearly completely edentulous, there are multiple paths to fixed restoration with implants. The two most common concepts are All-on-4 and multiple single implants (often six to eight), carrying individual crowns or smaller bridges.

Both concepts are clinically established. All-on-4 is efficient and more cost-effective, with quick treatment. Single implants are biologically closer to the natural dentition and more flexible long-term. This article explains the concepts, their indications and how Resident makes the decision.

What All-on-4 is

In the All-on-4 concept, four implants are placed strategically in the jaw, often vertically in the front area and angled (tilted) in the posterior area. A twelve to fourteen-unit fixed bridge sits on these four implants, restoring the entire jaw.

The key characteristics:

Immediate loading possible: in many cases a provisional bridge can be placed on the surgery day. The patient leaves the practice with fixed teeth.
No bone augmentation in most cases: the angled posterior implant position uses existing bone without elaborate sinus lift in the upper jaw.
One surgery, one day: all four implants are placed in one session.
Definitive bridge after three to four months of healing.

A variant is All-on-6, with six instead of four implants. It is chosen for patients with strong bite force, with antagonist dentition or with particularly long restoration spans.

What single implants (six to eight) are

In the classic concept, six to eight implants are placed, carrying either single crowns or smaller bridges (two or three units). The restoration comes closer to the natural tooth arrangement.

Characteristics:

Multiple implants, multiple surgeries or one longer single surgery.
Often bone augmentation required, especially in the posterior upper jaw (sinus lift).
Extended treatment duration: bone augmentation plus implantation plus healing plus prosthetic restoration take six to twelve months in total.
Definitive restoration in multiple steps with single crowns or short bridges.

Comparison by criteria

Treatment duration

All-on-4: surgery day plus three to four months of healing. Definitive bridge after 4 to 6 months from treatment start.

Single implants: often 8 to 12 months from start (bone augmentation) to definitive restoration. Without bone augmentation 4 to 6 months, comparable to All-on-4.

Number of surgeries

All-on-4: usually one large surgery per jaw, in which all four implants are placed.

Single implants: often two or more surgeries because bone augmentation and implantation are temporally separated.

Bone augmentation need

All-on-4: in most cases no bone augmentation, because the angled position optimally uses existing bone.

Single implants: often bone augmentation in the posterior upper jaw (sinus lift) and occasionally vertical augmentation. More on implant logic in the article Immediate or delayed implant.

Comfort on surgery day

All-on-4 with immediate loading: patient leaves the practice with provisional fixed teeth. Functionally and aesthetically restored immediately.

Single implants: often in multiple phases with a transitional denture worn in between, because restoration only happens after healing.

Costs

Concrete amounts vary strongly by implant system and materials. More on bandwidths in the article on the cost of an implant.

Rough tendency:

All-on-4 per jaw: one-time high initial effort but relatively defined costs.
Single implants (six to eight plus prosthetic restoration with bone augmentation): in total often 30 to 60 percent more expensive than All-on-4.

The biggest cost driver with single implants is bone augmentation with sinus lift and possibly augmentation.

Lifespan and maintenance

Both concepts have high implant survival rates in studies above 95 percent over ten years.

The bridge restoration in All-on-4 lasts 10 to 20 years. Individual components (provisional, veneer) may show wear during this time.

Single crowns last similarly. If a single crown causes problems, it can be replaced in isolation without touching the entire restoration.

Repair-friendliness

All-on-4: with bridge defect a larger intervention is often necessary (open the bridge, take impression, recement). With loss of one of the four implants the entire system is affected because one of four supports is missing.

Single implants: defects are repaired locally. An implant loss only affects the corresponding area. The system is more robust against local problems.

Oral hygiene

All-on-4: the continuous bridge makes cleaning more difficult because no direct plaque removal between the supports is possible. Special cleaning tools (superfloss, water flossers, interdental brushes) are mandatory.

Single implants: care as with natural teeth plus implant-specific hygiene. Direct cleaning between the implants is possible.

More on implant care and preventing peri-implantitis in the article on peri-implantitis.

Bone preservation

Both concepts stimulate the bone through the implanted roots and prevent the bone loss that occurs with classic full dentures.

Single implants distribute the load more evenly across the jaw. All-on-4 concentrates the load on four points with a bridge construction transferring load to the implants.

Which solution for which constellation

Patient with edentulous jaw and well-preserved bone

Recommendation: both concepts are possible. All-on-4 is the more efficient solution. Single implants are the biologically closer solution. Choice depends on budget, treatment preference and personal preference.

Patient with edentulous jaw and strongly receded bone

Recommendation: All-on-4 is often the only solution without elaborate bone augmentation. Single implants would require extensive augmentation, significantly extending treatment duration and costs.

Patient with preference for quick restoration

Recommendation: All-on-4 with immediate loading. An immediately fixed restoration on the surgery day is usually not possible with single implants.

Patient with high bite force or bruxism

Recommendation: All-on-6 or single implants. Four implants are sometimes overloaded with very strong loading. An additional implant count distributes the load.

Patient with preference for maximum long-term flexibility

Recommendation: Single implants. Local repairs are easier. With loss of a single implant the system is more robust.

Patient with pre-existing conditions like diabetes or osteoporosis

Recommendation: careful indication. All-on-4 has the advantage of fewer surgeries. Single implants allow staggered procedure with healing assessment between phases.

Patient with tight budget

Recommendation: All-on-4 or hybrid prosthetic solution. With very tight budget an implant-supported hybrid denture (two implants plus removable denture with locator connection) is the most cost-effective implant-supported solution. More in the article Implant or bridge.

Risks and complications

Both concepts are safe in experienced hands. The most common complications:

Acute complications

Wound healing disorder: rare, treatable with antibiotics and local care.
Sensitivity disorder: very rare, with contact to the nerve canal in the lower jaw. 3D planning minimizes risk.
Sinus perforation in upper jaw: largely avoided in All-on-4 by the angled implant position, possible with single implants without bone augmentation.

Late complications

Peri-implantitis: inflammation with bone loss, preventable through consistent care.
Implant loss: very rare in the first years, more common after 10 to 15 years.
Bridge fracture (with All-on-4): possible with extreme loading, repairable or replaceable.
Veneer loss: can occur on single crowns or All-on-4 bridges, fixable in practice.

How Resident makes the decision

Initial consultation and clinical examination with oral findings, history and patient preference.
3D image (CBCT) for exact assessment of bone availability, sinus relations and neighboring structures.
Indication for both concepts with detailed pros and cons profile.
Written treatment plan with cost estimate, schedule and complication explanation.
Treatment decision jointly with the patient.
Surgery and restoration by Dr. Dejan Dragisic, oral surgery specialist, at our Bellevue or Winterthur location.
Aftercare: semi-annual dental hygiene sessions with implant inspection, annual X-ray check of the peri-implant bone conditions.

All-on-4 and single implant restorations are specialist procedures we perform at our Bellevue and Winterthur locations through trained oral surgeons. More on treatment logic in the article Immediate or delayed implant.

Arrange an appointment for an initial consultation. We take time for the extensive assessment and discuss the options without sales pressure.