When a tooth or several teeth are lost, most patients face the same fundamental question: dentures or implants? Both replace missing teeth. Both restore function and appearance to a meaningful degree. But they are very different solutions, with different clinical profiles, different lifespans, and different demands on the patient.
How Long Do Dentures Last
A well-made acrylic denture, properly cared for, typically has a functional lifespan of somewhere between five and eight years. Premium versions of the prosthesis may last longer before the materials show significant degradation, but the fit — the relationship between the denture base and the underlying gum and bone — will usually deteriorate faster than the denture itself.
This is because bone resorption doesn’t stop after the initial healing period. The jaw ridge continues to change shape over years and decades, and the denture can’t adapt to those changes automatically. Relining extends the useful life of a prosthesis, but there comes a point where a new denture is the clinically correct recommendation. Most patients we see who’ve had dentures for ten or more years have had at least one or two remakes during that period.
And that’s not a criticism of dentures as a treatment — it simply reflects the biological reality of what happens to bone in the absence of tooth roots.
How Long Do Dental Implants Last
Dental implants are titanium fixtures placed surgically into the jawbone. When they integrate successfully — a process called osseointegration — they function as artificial tooth roots. According to data cited in the dental implant literature, five-year survival rates for implants are between 93 and 98 per cent. At ten to fifteen years, the prosthetic crown or bridge supported by the implant may need replacement, but the implant fixture itself often remains functional for significantly longer.
Some well-maintained implants remain functional for twenty years or more. The fixture, once integrated, is essentially permanent in favourable cases. This is the primary argument in favour of implants from a longevity perspective: you’re investing in something that may not need replacing within your lifetime, rather than something that predictably requires periodic remake.
In our experience, patients who are the most satisfied with implants long-term are those who understood at the outset that the surgical element requires adequate bone volume, a period of healing, and meticulous oral hygiene maintenance.
The Bone Preservation Argument
There’s a clinical dimension to this comparison that goes beyond longevity of the prosthesis itself. Natural tooth roots stimulate the surrounding jaw bone through the forces of biting and chewing. When a tooth is removed and replaced with a conventional denture, that stimulation ceases. Bone resorption accelerates. Over time, the ridge shrinks, the denture fits less well, facial contours change, and the cosmetic and functional problems compound.
An implant transmits load through the bone in a way that approximates natural tooth function. This mechanical stimulation preserves bone volume. Patients who have implants placed promptly after tooth loss typically show significantly less bone resorption over the following years than those who wear conventional dentures. On balance, this bone preservation effect is one of the strongest long-term arguments for implants where they’re clinically appropriate.
Cost: Dentures vs Implants
| Solution | Approximate Initial Cost | Expected Lifespan | Long-Term Cost Consideration |
|---|---|---|---|
| Conventional complete denture (per arch) | £900 – £1,600 | 5–8 years per denture | Multiple remakes over a lifetime |
| Conventional partial denture | £500 – £1,500 | 5–8 years | Relining plus periodic replacement |
| Single dental implant with crown | £2,000 – £3,500 | 15–25+ years (fixture) | Crown may need replacing; fixture often doesn’t |
| Implant-retained full denture | £4,000 – £8,000+ | Implant fixtures: 20+ years; denture: 5–10 years | Highest initial cost, lowest long-term intervention rate |
The upfront cost difference is real and significant. But when calculated over a twenty-year period — accounting for denture remakes, relining fees, and the ongoing clinical management of progressive bone loss — the gap between implants and conventional dentures often narrows considerably.
Suitability: Not Everyone Is a Candidate for Implants
Implants require adequate bone volume and density at the proposed site. Patients who have been edentulous for many years may have experienced enough resorption that bone grafting would be needed before implant placement — adding cost and a longer treatment timeline. Some medical conditions (uncontrolled diabetes, certain medications including bisphosphonates, heavy smoking) increase the risk of implant failure and need careful discussion before proceeding.
Some patients are excellent implant candidates clinically but prefer not to have surgery, or prefer the lower upfront cost of dentures. That’s a legitimate choice. Others are not suitable for implants at all and need to be guided toward the best denture solution available. There’s no single right answer for everyone.
Worth knowing: implant suitability is assessed through a combination of clinical examination and radiographic review — you can’t determine suitability from a conversation alone.
Comfort and Lifestyle
In practice, implant-supported replacements offer a stability and bite confidence that conventional dentures can’t fully replicate. Patients with well-fitting implant-retained dentures or implant-supported crowns can typically eat a wider range of foods, speak without concern about movement, and report fewer social anxieties around their prosthesis.
Conventional dentures, particularly full lower dentures, are genuinely more challenging to stabilise. The lower ridge is smaller, the tongue is active, and there’s no palatal suction to assist retention. Many patients manage well; others find the adjustment difficult and the function limiting.
But dentures don’t require surgery. They can be provided more quickly. And for patients with complex medical histories or significant systemic health concerns, they may simply be the safer and more appropriate option.
Making the Right Choice for Your Situation
The honest answer is that this isn’t a decision to make based on a cost table or a general comparison. It requires a clinical assessment that considers your bone quality and quantity, your medical history, your aesthetic expectations, your diet, and your realistic capacity for the maintenance that each option demands.
At Coniston Dental Practice, we discuss both options openly, without steering patients toward the more expensive solution by default. The right treatment is the one that works best for your clinical situation, your life, and your budget. Call us on 01932 343 675 to arrange a consultation and get a personalised recommendation.
