All-on-4 treatment replaces a full arch of teeth with a fixed bridge supported by four dental implants. It may be discussed when most or all teeth in one jaw are missing or cannot be retained, it is not four separate replacement teeth, and it is not the same as a removable implant-retained denture. The treatment is often promoted with phrases such as teeth in a day, which can hide important detail, a bridge fitted around the time of surgery is usually a provisional restoration used while the implants heal. This is general information only, full-arch implant surgery has material risks and alternatives, and suitability requires a detailed assessment by appropriately trained registered practitioners.
What is All-on-4?
All-on-4 is a treatment concept in which four implants support a fixed full-arch dental bridge. Two implants may be placed more vertically towards the front and two at an angle towards the back, depending on the anatomy and plan.
The name does not mean that four implants are always the correct number. Other full-arch plans may use more implants, different positions, bone grafting, a removable overdenture or a conventional denture, and the provider should explain why the proposed design fits the clinical findings.
How it differs from other options
No option is automatically better. The comparison depends on remaining teeth, bone, health, cleaning ability, repair expectations, cost and how the patient feels about removable treatment.
| Option | Support | Removed by the patient | Main distinction |
|---|---|---|---|
| Conventional full denture | Gums | Yes | No implant surgery |
| Implant-retained overdenture | Implants and gums | Yes | Clips to implant attachments |
| All-on-4 fixed bridge | Four implants | No | Full arch fixed to implants |
| Other fixed full-arch bridge | Four or more implants | No | Implant number and design vary |
| Individual implants | Usually one implant per replacement unit or a smaller bridge | No | Used for one or several missing teeth rather than a full arch |
Who may be considered for treatment?
An assessment may consider people who have a failing full set of teeth in one jaw, already wear a full denture or are missing most teeth. It also needs to consider bone amount and quality, gum health and active infection, general health and medicines, smoking or vaping, clenching and bite forces, ability to clean around the bridge, and expectations, finances and alternative treatments.
This is not a suitability test in itself. Healthdirect's dental implant guidance explains general implant stages and risks, but individual planning may involve a dentist, prosthodontist, periodontist, oral surgeon, oral and maxillofacial surgeon, anaesthetist and laboratory team.
What happens during treatment?
Treatment generally follows three broad stages:
Assessment and planning
Records can include examination, photographs, scans, X-rays and three-dimensional imaging. The team considers which teeth can be retained, implant positions, bridge design and whether additional treatment is needed.
Surgery and provisional teeth
Teeth may be removed and implants placed during the surgical phase. A provisional bridge may be attached soon afterwards when the team judges that the implants have suitable initial stability, though immediate loading is not guaranteed and may not be appropriate in every case.
Healing and final bridge
The implants require a healing period. The provisional bridge, bite and tissues are reviewed, and a final bridge is then made according to the treatment plan. Ask which material is used at each stage and whether the advertised fee includes both provisional and final teeth.
Recovery and daily life
Swelling, bruising, discomfort and changes to eating can occur after surgery. The treating team should provide instructions and explain which symptoms need review, and recovery varies with the surgery, extractions, health and anaesthesia.
A fixed bridge still needs daily cleaning around the implant connections and underneath the teeth. Professional maintenance may include hygiene appointments, X-rays, screw checks and periodic removal of the bridge where indicated.
Risks and maintenance
Possible issues include infection, poor healing, implant failure, damage to nearby structures, altered sensation, sinus complications, bridge fracture, wear, screw loosening and difficulty cleaning. Anaesthesia has separate risks.
Ask what happens if an implant does not integrate, whether the provisional bridge can be repaired, how later replacement works and which ongoing fees are expected. A long warranty may have cleaning, smoking or review conditions.
What does All-on-4 cost in Australia?
Public Australian provider prices reviewed in July 2026 range broadly from about $18,000 to $45,000 or more per arch, so two arches may be $36,000 to $90,000 or more.
These figures are indicative, not quotes or formal averages. Some published fees include scans, extractions, surgery, provisional and final bridges and reviews, while others exclude anaesthesia, facility fees, grafting or the final bridge upgrade, so it is worth asking exactly what a quote covers.
In April 2026, the ATO and Ahpra warned about inappropriate promotion of early super access for expensive dental treatment. Superannuation release is not a routine payment plan and should not be used to pressure a patient into one provider or procedure.
Comparing All-on-4 quotes
When comparing quotes, ask which teeth are being removed and whether alternatives are available, why four implants are proposed rather than another design, who plans the bridge, places implants and provides anaesthesia, whether the provisional and final bridges are both included, what materials are used, whether scans, extractions, grafting, facility and anaesthetist fees are included, what the plan is if immediate loading is not possible, and what maintenance, repair and replacement fees should be expected. Check every practitioner through the Ahpra register and confirm any claimed specialist title.
Frequently asked
The bridge is normally fixed and not removed by the patient. A clinician may remove it for maintenance or repair. An implant-retained overdenture is a different removable option.
A provisional bridge may be fitted around surgery for suitable patients. The final bridge is usually made later. Confirm the exact sequence in writing.
There is no guaranteed lifespan. Implants, screws and bridge materials can have different maintenance and replacement needs. Health, smoking, cleaning and bite forces also matter.
Medicare does not generally cover routine private dental implants. Extras and hospital policies may pay limited benefits for eligible components. Obtain itemised estimates from the fund.
No. Implant systems, bridge materials, practitioner roles, anaesthesia, inclusions and maintenance arrangements vary considerably.
