All-on-4: Full-Arch Restoration in Athens.

For a patient who has lost all — or nearly all — of the teeth in one jaw, the All-on-4 technique offers something that two decades ago was considered impossible: a full, fixed, aesthetic set of teeth, supported by only four implants.

What is All-on-4?

All-on-4 is a prosthetic restoration technique developed by Nobel Biocare in the 1990s and now used in millions of patients worldwide. Instead of placing 8–10 implants per jaw, the technique supports a complete, fixed bridge of 12 teeth on just four implants.

The "secret" is the angled placement of the two posterior implants. This makes maximum use of the available bone — usually avoiding the need for complex bone grafts or sinus lifts. In many cases, the four implants are placed and the temporary bridge is worn on the same day.

Who is a candidate?

All-on-4 is the ideal solution for patients who:

• Have lost all the teeth in one or both jaws.
• Wear a removable denture and want a stable, fixed solution.
• Have teeth with advanced periodontitis that cannot be saved.
• Have avoided implants due to concerns about bone grafting.
• Want a shorter treatment time and a lower total cost than traditional implantology.

The procedure, step by step

1. Initial assessment & CBCT

Treatment begins with a clinical examination and a CBCT scan. We assess the quantity and quality of the bone, the position of the inferior alveolar nerve and maxillary sinuses, and overall oral health.

2. Digital planning

Using planning software, we determine the exact positions of the four implants. Two are placed vertically in the anterior region; two are placed at an angle (usually 30–45°) in the posterior region.

3. Surgical day

Placement of the four implants takes between 2 and 4 hours, depending on the case. It is performed under local anesthesia with sedation, or — for greater comfort — under general anesthesia.

4. Immediate temporary bridge

In most cases, within a few hours or by the next day, a temporary bridge of 10–12 teeth is fitted, and the patient leaves with teeth in place. This bridge is worn for 3–6 months, during which the implants integrate into the bone.

5. Final bridge

Once osseointegration is complete, the temporary bridge is replaced with the final, permanent one. It is made from more durable materials (e.g. zirconia) and is precisely designed for optimal aesthetics and function.

All-on-4 cost in Athens

The cost of All-on-4 in Athens varies according to several factors: the implant brand, the type of final bridge (acrylic, zirconia, metal-ceramic) and the overall complexity of the case.

What's included	Indicative cost
All-on-4 per jaw — 4 implants + temporary + final acrylic bridge	from €7,500
All-on-4 with zirconia bridge — maximum aesthetics and durability	from €12,000
All-on-6 — 6 implants for added stability	from €9,500
Full restoration of both jaws	from €14,000

These figures are indicative. A written, itemized cost plan is always provided after clinical examination and CBCT scan.

All-on-4 is not a "discount" version of implants. It is an advanced technique with 25 years of clinical data behind it.

How long do All-on-4 implants last?

With proper care, the implants themselves can last a lifetime. The prosthetic bridge — depending on the material — typically lasts 10–20 years before needing replacement. Meticulous oral hygiene and regular check-ups every 6 months are essential for the long-term success of the treatment.

Conclusion

For patients with complete or near-complete tooth loss, All-on-4 represents one of the most important advances in modern dentistry. Success depends critically on the experience and judgment of the surgeon — from planning to placement to follow-up.