Comparing All on 4 vs dentures comes down to stability, cost and how much surgery you are comfortable with. All-on-4 gives a fixed bridge that stays in. Conventional dentures are removable and cost far less upfront, but can move and may need relining as the jaw changes.
Neither is right for everyone. Here is a neutral comparison to help you talk it through with your dentist.
How each option works
Conventional full dentures sit on the gums. Upper dentures rely on suction against the palate, while lower dentures rest on the ridge and are held mainly by the tongue and cheeks.
All-on-4 uses four implants placed in the jaw to support a fixed full-arch bridge. The bridge is screwed in and only your dentist removes it, usually for maintenance.
A temporary fixed bridge is often fitted soon after All-on-4 surgery, with the final bridge made once the implants have integrated. Dentures can be made without surgery, although an immediate denture may be fitted on the day remaining teeth are removed.
There is also a middle option, where a removable denture clips onto implants. Read implant-retained dentures if that sounds worth exploring. Our All-on-4 dental implants page explains the full-arch approach.
Comfort, chewing and confidence
Because an All-on-4 bridge is fixed, it does not move while you eat or speak. Many people find chewing firmer foods easier than with a denture. The upper bridge usually leaves the palate uncovered, which can help with taste and temperature.
Conventional dentures can work well, particularly upper dentures. Lower dentures are more prone to movement, and some people need adhesive or find certain foods difficult.
Speech can take a little adjustment with either option. Most people adapt within a few weeks, though this varies.
Comfort is personal. Some people adapt quickly to dentures, while others never feel secure, and your experience may differ from either pattern.
Taste, gagging and denture sores are other things people mention when comparing the two. Your dentist can talk through how each option is likely to feel in your mouth.
Cost: upfront and over time
Dentures cost considerably less upfront and involve no surgery. However, they typically need relines as the gums and bone shrink, and replacement every several years.
All-on-4 involves surgery, scans, a temporary bridge and a final bridge, so the upfront investment is much higher. It is quoted individually after a CT scan; see All-on-4 cost in Sydney for what a quote usually includes.
The All-on-4 bridge also has ongoing costs, including professional cleaning, occasional repairs and eventual replacement. For general implant fees, visit our dental implant cost page.
Health funds differ, so check your extras cover, annual limits and waiting periods directly with your fund. We can provide the item numbers from your treatment plan so your fund can give you a quote.
Daily care and maintenance
- Dentures: removed for cleaning daily and usually overnight, with the gums cleaned too. Relines and adjustments are needed as your mouth changes.
- All-on-4: cleaned in the mouth with a toothbrush, interdental brushes or a water flosser, focusing under the bridge. Regular professional reviews, where the bridge may be removed and cleaned, are important.
Implants can develop peri-implantitis, an inflammation of the gum and bone around them, if plaque builds up. Dentures can cause sore spots or fungal infections if not cleaned and fitted well.
Both options need regular check-ups. Your dentist also checks the soft tissues of your mouth at these visits.
Whichever option you choose, replace a worn toothbrush regularly and ask your hygienist to show you the tools that suit your mouth.
Risks, limitations and recovery
All-on-4 is surgery. Expect swelling, bruising and tenderness for several days, and a soft diet while the implants integrate. Risks include infection, bleeding, nerve irritation causing numbness, sinus problems, implant failure and fracture of the bridge.
Smoking, uncontrolled diabetes and some medications raise the risk of complications. If you have trouble breathing or swallowing after surgery, call 000.
Dentures avoid surgery but do not stop bone loss in the jaw. Over time this can change how they fit and how your face looks. Results vary between people with either option.
Recovery after dentures is usually about adapting to the new teeth, with sore spots adjusted at review visits. After All-on-4, most people take a few days off work and follow a soft diet while healing.
Which might suit you?
Dentures may suit you if you prefer to avoid surgery, have health reasons that make surgery riskier, or want a lower upfront cost. All-on-4 may suit you if denture movement is a major problem and you have enough bone and good general health.
Some people start with dentures and move to implants later, while others choose implants from the outset. There is no single right sequence, and your priorities may change over time.
It can help to think about what matters most to you. Common considerations include:
- How much denture movement bothers you when eating or speaking
- Whether you are comfortable with surgery and a healing period
- Your budget, both now and for ongoing maintenance
- Whether you prefer teeth you can remove, or teeth that stay fixed
- Your general health and any medications that affect healing
Your dentist will advise whether either option suits you after an examination and scans. For an overview of all implant options, see our complete guide to dental implants or read about dental implants at North Sydney Dentistry.
Call (02) 8090 1108 to book an assessment.
Frequently asked questions
Can I switch from dentures to All-on-4 later?
Often yes, if you have enough bone and are healthy enough for surgery. Long-term denture wearers sometimes have more bone loss, so a CT scan is needed to check suitability.
Are All-on-4 teeth removable?
Not by you. The bridge is screwed onto the implants and only your dentist removes it, usually during maintenance appointments.
Do I need to take dentures out at night?
Most dentists recommend removing dentures overnight to rest the gums and clean them thoroughly. Your dentist will give advice for your situation.
Which lasts longer, All-on-4 or dentures?
Implants can last many years with good care, but the bridge on top wears and may need replacing. Dentures usually need relines and replacement every several years, and timing varies.
Book a consultation
North Sydney Dentistry is at Level 1, Suite 102/71 Walker St, North Sydney, a two-minute walk from North Sydney station. We’re open Monday to Friday, 9am to 6pm. Call (02) 8090 1108 or book online.
This article is general information only and is not a substitute for advice from your own dentist or doctor. Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.