Centre for Cosmetic, Laser and Implant Dentistry

Restorative Dentistry

All-on-4 Full-Arch Implants

A Fixed Alternative to Dentures

All-on-4 is a full-arch dental implant treatment that replaces missing teeth together with the gum structure that supports them. It may be considered after multiple tooth loss, advanced gum disease or significant decay, or when removable dentures no longer provide adequate comfort or function.

Instead of placing an implant for every missing tooth, a small number of strategically positioned implants (usually four, sometimes five or six) support a fixed, screw-retained full-arch prosthesis that doesn’t come out at night. Individual outcomes vary, and this treatment is not suitable for everyone; your dentist will assess your circumstances, explain the risks and discuss alternatives.

Illustration of a full-arch implant bridge on four implants
25+Years dental experience
  • 4–6 implantsPer full arch
  • Same dayTemporary teeth in many cases
  • FixedDoesn’t come out at night

How the All-on-4 System Works

“All-on-4” means four implants supporting a full arch. “All-on-X” is the same concept with 4, 5 or 6 implants, depending on bone volume, anatomy and treatment goals.

01

Implant Placement

  • Two implants are placed vertically in the front of the jaw.
  • Two or more are angled at the back to engage stronger bone, often avoiding bone grafting.
  • The implants fuse with bone through osseointegration.
02

Full-Arch Prosthesis

  • A custom bridge (acrylic, composite, ceramic or zirconia) is screw-retained onto the implants.
  • Unlike dentures, it doesn’t rest on the gums or move.
  • Only your dentist can remove it for maintenance.
03

Immediate Teeth

  • Many protocols allow same-day temporary teeth, so you leave with fixed teeth while healing takes place.

Who Is Suitable for All-on-4?

All-on-4 or All-on-X may be recommended if you:

  • Have multiple missing teeth or full-arch tooth loss

  • Have advanced decay or gum disease

  • Want a fixed alternative to dentures

  • Have sufficient bone volume, or can be treated with angled implants

Five or six implants may be recommended when bone volume is reduced, bite forces are high, the arch is long or extra support is needed for a zirconia bridge.

A zirconia full-arch implant bridge beside the finished smile

Benefits of Full-Arch Implants

  • Fixed, Stable Teeth

    Teeth that don’t slip or click like dentures can.

  • Stronger Chewing

    Significantly better chewing function than removable dentures.

  • Natural Aesthetics

    Custom-designed teeth and gum contours for a natural-looking smile.

  • Often Avoids Grafting

    Angled implants make the most of available bone. Long-term success rates are reported at around 93–98%, depending on protocol and follow-up.

Missing Teeth Options for a Full Arch

We’ll discuss every pathway with you, including its benefits, limitations and risks, so you can decide what suits your oral health, lifestyle and goals.

Option
Removable?
Implants
Stability
Typical Time
Conventional denture
Yes
None
Low
4–6 weeks
Overdenture (implant-retained)
Yes
2–4
Moderate
3–4 months
Implant-supported bridge
No
6–8
High
3–6 months
All-on-4 / All-on-X
No
4–6
High
Same-day temporaries; final teeth in 2–3 days or 3–4 months

All dental procedures carry risks. Treatment times and outcomes vary between individuals and depend on factors such as bone levels, oral health and healing response.

Your All-on-4 Treatment Journey

  1. 1

    Assess

    We discuss your history, goals and concerns, and evaluate how you smile, speak and bite, along with your facial structure and oral health.

  2. 2

    Design

    Comprehensive 3D scans let us create a digital simulation of your proposed smile. Previews are indicative only, as results vary.

  3. 3

    Confirm

    You can give feedback and request adjustments before treatment, so you feel informed and confident.

  4. 4

    Restore

    Implants are placed and temporary teeth fitted on the day of surgery. Final teeth follow in 2–3 days or after about 3–4 months of healing.

  5. 5

    Refine

    Regular reviews and maintenance keep your implants working well. A nightguard may be recommended, and we’ll coach you on long-term hygiene.

Frequently Asked Questions

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Is All-on-4 removable?

No. The full-arch bridge is screw-retained onto the implants and only removed by your dentist for maintenance.

Will I leave with teeth on the day?

In many cases, yes. Temporary fixed teeth are usually fitted on the day of surgery while the implants heal.

Why might I need more than four implants?

Five or six implants may be recommended when bone volume is reduced, bite forces are high, the arch is long or extra support is needed.

How much does All-on-4 cost?

Costs depend on the number of implants, materials and any preparatory treatment. We provide a written, itemised estimate before treatment begins. Private health fund rebates (HICAPS) are processed on site, and flexible interest-free payment options (Afterpay, Zip and DentiCare) are available.

Book your consultation

Interested in All-on-4 implants?

Book an appointment with our experienced team today. Start with a comprehensive new patient exam, and we’ll talk you through whether All-on-4 implants could be right for you.

Product Partners

Philips Zoom whiteningLANAP laser gum treatmentOrmco orthodontics

All Health Funds Welcome

HCFnib

Payment Options

ZipAfterpayDentiCare
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Book an Appointment

Which clinic would you like to visit?

Choose a clinic to see live availability and book online through HealthEngine.

Adelaide CBD

Level 3, Suite 302, 147 Pirie St, Adelaide SA 5000

Weekday appointments, Monday to Friday.

Book online Call (08) 8423 1091

Kensington

292 The Parade, Kensington SA 5068

Evening and Saturday morning appointments.

Book online Call (08) 8332 2800

Not sure which suits you? Call (08) 8423 1091 and our team will help.