All-On-4 Dental Implants: Everything You Need to Know

Dental Implants
5 min
/
September 3, 2026

Written by DR ARUN THANGAVEL

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Key Takeaways:
  • All-on-4 replaces a full arch of missing teeth using four titanium implants that support a fixed, natural-looking bridge.
  • The implants are strategically placed to maximise existing bone and can often support temporary teeth on the same day.
  • It restores bite strength and jawbone support, helping prevent bone loss and facial collapse.
  • The treatment suits adults with significant tooth loss who want a stable alternative to dentures.
  • Costs vary by complexity and location, and while Medicare does not cover implants, some private health extras may contribute.

While those suffering from tooth loss once had to (quite literally) grin and bear it, today All-on-4 dental implants in Wollongong are a fast, long-term solution.

In 2022, there were 108,399 dental implant and abutment procedures performed in Australia, a figure covering a broad set of implant treatments — including the increasingly popular All‑on‑4.

In many ways, All-on-4 dental implants have taken over from other tooth replacement solutions like bridges and dentures.

In this article, our Wollongong implant specialists explore the key reasons for this, and the important functional benefits they offer.

We’ll also discuss All-on-4 Wollongong dental implant costs, and how we can help at Southern Dental Specialists & Implant Centre.

What are all-on-4 dental implants?

Losing teeth or struggling with failing teeth can affect far more than just your smile.

All-on-4 dental implants are a near instant replacement for a full mouth of missing teeth. Not only are they a life-changing solution for tooth loss in terms of aesthetics, but they also have long-term health benefits.

When teeth are missing, the jawbone no longer receives the stimulation it needs, which can cause bone deterioration over time.

The titanium implants used in All‑on‑4 act like natural tooth roots, stimulating the bone and helping to maintain strength and volume.

This supports facial structure and can prevent the sunken appearance that sometimes accompanies long‑term tooth loss.

How all-on-4 dental implants work

All‑on‑4 works by placing four strategically angled titanium implants into areas of the jaw with strong, existing bone.

Anchoring to a strong foundation requires fewer implants overall.

A custom‑made, fixed arch of prosthetic teeth is then attached to these implants.

The result? A strong, natural‑looking smile that feels and functions much like real teeth. In many cases, a temporary set of teeth can be placed on the same day as the surgery.

This allows you to leave the clinic with a functional smile while the implants fully integrate with the bone over the coming months.

How many implants are required for full arch replacement?

For a full set of replacement teeth, most All‑on‑4 treatments use four titanium screws per arch.

That means four posts in the upper jaw and four in the lower if you’re replacing both arches.

These four implants are strategically placed to support an entire fixed bridge of artificial teeth, giving you a complete smile without needing an implant for every single tooth.

Who is an ideal candidate for all-on-4 dental implants?

An ideal candidate for All‑on‑4 dental implants is someone who has lost most or all of their teeth in one or both arches and wants a stable, fixed solution rather than traditional dentures.

While you must be over 18 years of age, there is no upper age limit for All-on-4 dental implants. However, you do need to be in good health, and well enough to tolerate the procedure.

You will also need to have sturdy gums and bone density, and be free of gum disease and recession as these can compromise the stability of the implants.

Smokers or those with poor oral hygiene may not be ideal candidates due to the risk of complications.

Benefits of all-on-4 dental implants compared to traditional implants

One of the biggest advantages of All‑on‑4 is that it only requires four titanium screws to support an entire arch of teeth.

This generally means fewer surgical visits and a quicker overall treatment timeline than traditional implants that place individual posts for each tooth.

Many patients also benefit from temporary teeth on the same day as surgery.

All-on-4 Traditional Implants
Number of implants (per arch) Typically 4 (sometimes 4-6) Usually 6-8+, often one implant per missing tooth
Treatment time Often same-day possibility
Full process ~3-6 months
Longer: usually 5-8+ months, sometimes up to a year with bone grafting
Bone grafting needed Often avoided by angling posterior implants into denser bone Frequently required if bone density/volume is insufficient
Cost Generally lower overall (fewer implants, less grafting) Generally higher (more implants, possible grafting, more visits)
Surgery One surgical session for implants + a temporary prosthesis same day May involve multiple surgeries over time (implant placement, healing, then restoration)
Candidacy Good option for patients with significant bone loss or edentulism Better for patients with sufficient healthy bone (can also restore single missing teeth)
Stability/chewing force Very stable for full-arch restoration (angled implants improve support) Excellent stability, especially with adequate implants per tooth
Long-term maintenance Fixed bridge requires special hygiene tools (floss threaders, water flosser) Individual implants are generally easier to floss/clean like natural teeth
Longevity Well-documented long-term success
Rare: heavily-loaded implants carry some added mechanical stress
Considered the gold standard (long track record, often 15-25+ years with good care)
Failure/replacement risk If one implant fails, it can affect the whole arch/bridge Failure of one implant is more isolated and easier to address individually
Best for Full-arch replacement, edentulous patients, those wanting fewer implants/faster results Single or multiple tooth replacement, patients with good bone health, those prioritizing per-tooth independence

Traditional implants remain the gold standard for individual tooth replacements or partial gaps, offering a very natural feel and customisation when only a few teeth are missing.

A thorough assessment with your specialist Wollongong dentist will help determine which option best suits your smile goals, bone health and budget.

All-on-4 dental implants process

Step One: Initial consultation and planning

Your All‑on‑4 journey begins with a thorough consultation and exam with your dentist.

During this visit, your clinician reviews your medical history, checks your oral health and takes dental imaging (like X‑rays or a 3D scan) to assess your jawbone.

This is where your dentist will choose the best positions for your implant screws.

Step Two: Preparation and pre‑surgery steps

Before surgery, any necessary preparatory work is done.

This might include extracting damaged teeth, treating gum disease or other dental issues and, in some cases, bone grafting if more bone support is needed.

Your dentist will also guide you on how to prepare for surgery, including fasting instructions, medication checks and arranging transport on the day.

Step Three: Implant surgery

On surgery day, four titanium screws are placed into your jawbone: two near the front and two angled at the back to take advantage of existing bone and avoid areas that might need grafting.

Local anaesthesia (and sedation if chosen) will keep you comfortable during the procedure.

When you get All‑on‑4 implants, your dentist usually fits a temporary bridge first because your jaw and gums need time to heal and adapt after surgery before the permanent teeth are attached.

A temporary bridge gives you immediate function and aesthetics, so you can speak and smile right away while the titanium screws fuse with your jawbone and settle into place.

Step Four: Early healing and osseointegration

After surgery, your jawbone begins to fuse with the implanted screws in a process called osseointegration, which will usually take 3 to 6 months.

During this period, bone grows around the screws, strengthening them and securing your foundation for long‑term function.

Regular follow‑up visits help your dentist monitor healing and adjust care as needed.

Step Five: Final prosthesis placement

Once integration is complete and your implants are stable, your dentist fits the final, custom‑made prosthetic arch.

This permanent set of teeth is designed to look natural, fit comfortably and restore full chewing function.

With good oral hygiene and routine dental check‑ups, your All‑on‑4 restoration can deliver years of reliable performance.

We also accept all private health funds and have HICAPS available for instant rebates.

See finance options

Average cost of all-on-4 dental implants by state

There are many factors that influence the cost of an All-on-4 dental implant treatment, such as how much preparatory work is required and the materials chosen.

However, in Australia there are also variations depending on which state you receive treatment. The following table breaks down approximate costs based on your location.

Our South Coast specialist dentists can give you a more detailed quote, as well as advice on any implant financing available to you.

The below figures are approximations.

State / Territory Typical cost/arch (AUD) Notes
Wollongong, New South Wales (NSW) $25,000-$28,000 Wollongong dental clinics specialising in All-on-4 falls within the median range with strong local presence.
Sydney, New South Wales (NSW) $18,000-$35,000 Sydney clinics are often most expensive due to larger overhead costs.
Melbourne, Victoria (VIC) $19,000 – $30,000 Melbourne offers both cheaper and premium options.
Bribane, Queensland (QLD) $19,000 – $35,000 Brisbane and coastal centres generally fall mid-range.
Perth, Western Australia (WA) $19,000 – $40,000 Perth prices stretches within a larger range compared to the east coast averages.

Does health insurance cover all-on-4?

Unfortunately, Medicare doesn’t cover dental implant surgery, including All‑on‑4, because dental procedures are generally considered outside the scope of the public health scheme.

This is because dental implants are considered a cosmetic procedure, and Medicare only covers necessary medical treatments.

However, there are some cases where dental implants are deemed necessary.

Private health insurance may help cover part of the cost of All‑on‑4 implants, but this depends entirely on your policy and level of cover.

Many funds classify All‑on‑4 under major dental or implant benefits in extras cover, so you might be able to claim a portion of the implant components, crown work or related procedures.

How southern dental specialists & implant centre can help

Every patient is unique, and so is every smile.

That’s why we carefully tailor your treatment to ensure the outcome is uniquely you.

Not only do we restore function and correct bite issues, but we also use Digital Smile Design technology to craft a balanced smile in the ideal shape, colour and size for your facial shape.

As Wollongong locals and providers of the best All-on-4 dental implants, our mission is clear: to bring premium specialist dental care and a first-class patient experience home to our Illawarra community.

At Southern Dental Specialists & Implant Centre, our practitioners are at the top of their field, backed by years of experience, technical skill and the latest tech.

Contact us today to start planning your smile restoration.

DR ARUN THANGAVEL

Specialist Prosthodontist and Owner
BDS (OTAGO), DClinDent Pros (USYD), MRACDS

Arun’s long-held vision was to bring world-class specialist dental care to his local Wollongong community — and with Southern Dental Specialists & Implant Centre, he’s doing exactly that. With significant experience in managing complex cases, he is a leader in Illawarra for prosthodontics and dental implant treatment.

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