If you’re missing most or all of your teeth, dentures were probably the only option your parents’ generation was ever offered. They shift when you eat, they need messy adhesive, and many people quietly stop wearing them in public. All-on-4 exists because there’s now a fixed alternative: a full arch of replacement teeth, anchored permanently in place, without needing a separate implant for every missing tooth. Whether you’re in Earlwood or coming in from Marrickville, Campsie, or Belmore, here’s what it actually involves.

This guide covers what All-on-4 actually is, who it’s suitable for, what the procedure and recovery involve, and what it costs in Australia, in that order, because the cost only makes sense once you understand what you’re actually paying for.

Key takeaways

• All-on-4 replaces a full arch of missing or failing teeth using just four strategically placed implants, rather than one implant per tooth.
• In Australia, a full arch typically costs from around $18,000 at the entry end to $40,000 or more at the premium end, mostly driven by which bridge material and technology you choose, not the surgery itself.
• Most patients leave surgery day with a temporary fixed prosthesis already in place, commonly called “teeth in a day”, while the permanent version is made during healing.
• The angled placement of the back implants is specifically designed to work with existing bone, which is why All-on-4 often avoids the bone grafting that traditional implants may need.
• A well-maintained All-on-4 prosthesis can last 15 to 20 years or longer, with the underlying implants often lasting a patient’s lifetime.

What Is the All-on-4 Technique?

All-on-4 is a full-arch tooth replacement method that uses four titanium implants to support an entire row of fixed replacement teeth, either the upper arch, the lower arch, or both. Instead of placing a separate implant under every missing tooth, two implants go in at the front of the jaw where bone is usually strongest, and two go in at roughly a 45-degree angle further back, reaching into denser bone that’s often still available even after other teeth have been lost.

That angled back placement is the actual innovation behind the technique. It lets the four implants support a full prosthetic arch, a complete, bridge-like row of teeth, without needing the extensive bone grafting that a full mouth of individual implants would usually require.

Are You a Suitable Candidate for All-on-4?

All-on-4 generally suits people who are missing most or all of the teeth in one or both arches, are relying on dentures they’re unhappy with, or have several failing teeth that are likely to need extraction regardless. It’s not typically used to replace a single missing tooth. That’s a separate, simpler procedure covered in our guide to single dental implant costs.

Age itself isn’t a barrier. All-on-4 patients are often in their 60s, 70s, or beyond, since missing most or all of one’s teeth becomes more common later in life. What matters far more than age is general health and bone quality, which is exactly what a consultation and 3D scan assess.

Good candidacy generally depends on having sufficient bone density in the jaw to securely anchor the four implants and being in good enough general health to undergo minor surgery. Some bone loss doesn’t automatically rule you out. It’s specifically what the angled implant design is meant to work around, and in cases of more significant bone loss, particularly in the upper jaw, longer implants anchored into the cheekbone (called zygomatic implants) may be an option your dentist raises instead. A 3D scan during your consultation is what actually determines suitability, not a general checklist. Smoking, uncontrolled diabetes, and certain bone conditions can affect healing and are worth discussing openly at that stage.

What Does the Procedure Involve?

Consultation and planning. Your dentist takes a detailed 3D scan (a CBCT scan) of your jaw to assess bone density and map out exactly where the four implants will go. This planning stage is what makes the rest of the procedure predictable rather than exploratory.

Surgery day. The remaining teeth in the arch (if any) are extracted, the four implants are placed, and a temporary prosthesis is fitted the same day, which is where “teeth in a day” comes from. This is a significant surgical procedure, and it’s typically carried out under sedation. Our dental sedationist, Dr Anna Huang, works with patients throughout treatment like this to keep the experience calm and comfortable. In many cases, where bone quality allows, patients leave with a full, functional set of temporary teeth immediately. It won’t suit every case, and your dentist will tell you honestly at your consultation whether immediate loading is realistic for your bone density, rather than assuming it by default.

Healing. Over the following three to six months, the implants fuse with the jawbone through a process called osseointegration. This is what gives the final result its stability, and it can’t be rushed regardless of how good the temporary teeth look. A soft food diet is typically required during this period to protect the healing implants.

Final prosthesis. Once healing is confirmed, the temporary teeth are replaced with a custom-made permanent prosthesis, usually in acrylic or a more durable zirconia material, fitted precisely to your bite.

Mild swelling and discomfort in the days after surgery is normal and manageable with standard pain relief. It’s a surgical procedure, not a painless one, though most patients describe the recovery as considerably easier than they expected going in.

How Much Do All-on-4 Dental Implants Cost?

All-on-4 pricing varies more than almost any other dental procedure, and the biggest reason isn’t the surgery itself. It’s the bridge you choose to sit on top of it.

The surgical phase, placing the four implants, is relatively consistent between clinics. What changes the total more dramatically is the prosthesis: a basic acrylic bridge built to be replaced within a couple of years costs considerably less than a premium zirconia bridge designed to last 15 to 20 years or more. Reported figures for a single arch in Australia commonly range from around $18,000 at the entry end to $40,000 or more at the premium end, depending on the tier you choose.

Component	What it covers	Typical cost range
Consultation, 3D CT scan, and treatment planning	Detailed imaging used to plan implant position	$300-$800
Four titanium implants and surgical placement	The core surgical procedure	$10,000-$18,000
Sedation or anaesthesia	Twilight or IV sedation for the surgical appointment, typically billed as a separate item	$600-$2,000
Temporary prosthesis	The “teeth in a day” provisional arch	Often bundled into the surgical fee
Final prosthesis	Acrylic through to premium zirconia	$5,000-$20,000+

Added together, an acrylic-based final bridge commonly lands between $18,000 and $30,000 per arch, with premium zirconia options extending well beyond that, sometimes past $40,000. Replacing both arches roughly doubles the relevant figures.

A couple of things can push the price higher still. If significant bone has been lost, particularly in the upper jaw, some patients need zygomatic implants rather than standard grafting, a more complex procedure at a higher cost. Sedation is also typically billed as its own line item rather than bundled into the surgical fee, so it’s worth asking specifically what’s included in any quote you’re given.

These are general ranges, not a personalised quote. The only way to know your actual cost is a 3D scan and consultation, since bone density, the number of extractions needed, and bridge material all move the final number. If you’d like a general steer on where your case is likely to land before booking a full consultation, call the practice on (02) 9558 0225.

What Is the Cheapest Way to Replace All Your Teeth?

If budget is the primary concern, All-on-4 isn’t actually the cheapest option, and it’s worth seeing the full spectrum before deciding.

• Removable dentures are the lowest upfront cost, but they can shift while eating, need adhesive, and typically need relining or replacing every 5 to 8 years.
• Implant-retained overdentures, a removable denture that clips onto a smaller number of implants for extra stability, sit in the middle. They’re less expensive than All-on-4 since fewer implants and a simpler prosthesis are involved, but they’re still removable rather than permanently fixed.
• All-on-4 sits at the top of the range, because it’s a permanently fixed, non-removable solution supported by four implants.

The right answer depends on what matters most to you: the lowest upfront cost, or a fixed result that functions like natural teeth long-term. Your dentist can talk you through where each option sits for your specific situation.

All-on-4 vs Traditional Implants vs Dentures

	All-on-4	Traditional (individual) implants	Dentures
Implants required for a full arch	4	Typically 6-8 or more	None
Bone grafting typically needed	Often avoided	Frequently required	Not applicable
Fit and stability	Fixed, doesn’t move	Fixed, doesn’t move	Can shift, needs adhesive
Feel when eating	Close to natural teeth	Close to natural teeth	Reduced bite force, food restrictions
Typical timeline	Temporary teeth same day, final in 3-6 months	Often longer, especially with grafting	Weeks
Typical lifespan	15-20+ years	15-25+ years	5-8 years, needs relining
Approximate cost (full arch)	$18,000-$40,000+	Often higher, due to more implants and grafting	Lowest upfront cost

Dentures remain the lowest-cost option upfront, but the ongoing adjustments, relining, and lower chewing comfort are real, recurring costs of their own, both financially and in day-to-day quality of life.

How Long Do All-on-4 Implants Last?

The four titanium implants themselves, once successfully fused with the bone, often last a patient’s lifetime with proper care. The prosthetic arch on top has a shorter lifespan, typically 15 to 20 years for a well-maintained zirconia arch, somewhat less for acrylic, before wear or fit changes mean it needs replacing. Regular check-ups let your dentist catch that wear early, before it becomes a bigger repair.

Are All-on-4 Implants Worth the Money?

This comes down to what you’re comparing it against. Against doing nothing, a properly planned All-on-4 restores chewing function, speech, and confidence in a way that’s genuinely hard to put a dollar figure on for many patients. Against dentures, the ongoing cost of relining, replacing, and living with a prosthesis that can shift adds up over the years in a way that’s easy to underestimate at the outset.

Published success rates for All-on-4 are commonly reported in the 95 to 98% range, and many patients keep their implants for decades. Whether it’s worth it for you specifically depends on your own priorities and your candidacy, which is exactly what a proper assessment is for, rather than a general guide like this one.

What Are the Downsides of All-on-4?

All-on-4 is a genuinely life-changing option for many patients, but it isn’t without real trade-offs, and a good guide should say so plainly.

• It isn’t reversible. Remaining teeth are removed, and the procedure is permanent.
• The bridge has a working life. Acrylic bridges commonly need replacing within a few years due to wear or staining. Even premium zirconia options will eventually need attention.
• There’s an adjustment period. Some patients take a few weeks to adapt to speaking and eating with a fixed bridge, particularly if they’ve worn dentures for a long time.
• Implants can occasionally fail. Success rates are high, commonly reported between 95 and 98%, but failure does happen, and it usually means a healing period before a replacement implant can be placed.
• It isn’t suitable for everyone. Uncontrolled medical conditions, active gum disease, or insufficient bone in key areas may need addressing first.

None of this makes All-on-4 the wrong choice for someone who’s a genuine candidate, but it’s a significant, largely permanent commitment, not a minor procedure, and it deserves to be treated as one.

Does Food Get Stuck Under All-on-4 Implants?

Not under the implants themselves, since they’re fused directly into the bone. Food can get trapped underneath the bridge, in the gap between the prosthesis and the gum line, particularly toward the back. This is normal and manageable with the right cleaning routine. A water flosser and a gum stimulator designed for fixed bridges make a real difference, and your dentist can show you the technique at your follow-up appointments.

Ways to Make All-on-4 More Affordable

Given the total cost, most patients look at more than one funding option:

• Private health insurance extras cover can contribute toward parts of the treatment, though it’s unlikely to cover a procedure this size in full. Check your specific policy limits.
• Medicare doesn’t cover dental implants or All-on-4 for adults. It’s classed as private dental treatment, not a Medicare-funded service, so this isn’t an option to plan around.
• Genuinely free All-on-4 treatment is uncommon in Australia. Public dental services generally prioritise essential care and carry long waiting lists, and All-on-4 specifically isn’t something the public system routinely funds. If cost is the main obstacle, the options below are the realistic paths forward.
• Superannuation early release on compassionate grounds is available in some cases through the ATO, where the treatment is necessary and not reasonably available through the public system. This requires supporting documentation and isn’t automatic, so confirm eligibility directly with the ATO or your fund first.
• Payment plans through Afterpay or Humm split the cost into manageable instalments rather than one lump sum.
• Staged treatment planning, where your dentist sequences extractions, surgery, and the final prosthesis to spread the financial commitment over the healing timeline rather than billing it all upfront.

Missing Just One Tooth?

Everything above applies to full-arch restoration. If you’re only missing a single tooth, All-on-4 isn’t the right procedure. A standalone implant is simpler, faster, and considerably less expensive. Our guide to dental implant costs in Australia breaks down that scenario in full.

Getting a Personalised Assessment

General ranges are a useful starting point, but All-on-4 candidacy and cost genuinely depend on your bone density, your remaining teeth, and your health history, all of which a 3D scan and consultation will confirm.

Dr Dimitri Lucas and the team at The TLC Dentist in Earlwood can assess your case and talk you through a clear, itemised quote. No pressure, and no assumption that All-on-4 is automatically the right fit until your scan confirms it. We see patients from Earlwood and across the surrounding suburbs, including Marrickville, Campsie, and Belmore.

Book a consultation online, call the practice on (02) 9558 0225, or get in touch with the team to ask a question first. You can also visit our Earlwood clinic page for opening hours and directions.