Flexible Dentures

Flexible dentures are removable partial dentures made from a lightweight nylon thermoplastic instead of rigid acrylic. The gum-coloured clasps make them far less visible than metal-clasped partials, and they flex to fit rather than pressing against your gum. Ours start from £450.

What Do Flexible Dentures Cost?

Our flexible dentures start from £450. Across the UK the range runs roughly £400 to £1,200 per arch, with most practices sitting between £400 and £600 and London generally at the upper end.

If you need both upper and lower, double the arch price. That is the calculation people most often forget.

Why the range is wide

• How many teeth the denture replaces. A single tooth costs considerably less than a full arch of six or eight.
• Which material. Valplast is the best-known nylon brand and carries a premium. TCS and other thermoplastics cost less.
• Laboratory work. Flexible dentures are injection-moulded rather than poured, which needs a laboratory equipped for it.
• Preparation. Extractions, fillings in the clasping teeth, or gum treatment are all separate.

Flexible costs more than acrylic. Is it worth it?

Honestly, it depends what is bothering you.

If visible metal clasps are the problem, flexible is worth the difference and it is the main reason people choose it. If your acrylic denture keeps cracking, flexible resists fracture far better and will save you money over a few years.

If your acrylic denture fits badly, flexible will not necessarily fix that. A poor fit is usually an impression or design problem rather than a material problem, and changing material without changing the fit tends to reproduce the same complaint in a nicer looking appliance.

Are flexible dentures available on the NHS?

Generally no. NHS dentures are made to a standard specification, which means acrylic, or cobalt chrome where clinically indicated. Flexible nylon is treated as a private option almost everywhere.

What Are Flexible Dentures Made Of?

They are made from a nylon-based thermoplastic resin rather than the rigid acrylic used in conventional dentures. The best known brand is Valplast, though TCS and several other thermoplastics are used and perform similarly.

The material is injection-moulded into a thin, slightly bendy base that flexes to the contours of your gum. Two consequences follow from that, and they explain most of the pros and cons below.

First, the base can be made much thinner than acrylic while staying strong, so the denture feels less bulky. Second, the clasps that grip your natural teeth are moulded from the same gum-coloured material rather than bent from metal wire, so nothing metallic shows when you smile.

The Advantages

No visible metal. This is the reason most people end up choosing them. Conventional partial dentures use metal clasps that can show, particularly on upper front teeth. Flexible clasps blend with the gum.

Comfort. The material flexes to your gum shape instead of pressing against it, and the base is thinner. Patients who have never got on with a rigid acrylic plate often adapt to flexible far more easily.

Hard to break. Dropped acrylic dentures crack. Flexible ones usually bounce. Valplast dentures come with a lifetime guarantee against breakage, which tells you something about how the manufacturer rates the risk.

Good for sensitive mouths. The nylon is free of the residual monomer found in some acrylics, which is the component behind most denture-related irritation and the occasional allergy. If acrylic has irritated your gums before, this matters.

Lightweight. Less bulk in the mouth means less interference with speech and more room for your tongue.

The Disadvantages

We would rather set these out plainly than have you discover them later.

They are difficult to adjust or reline. This is the significant one. Nylon does not accept additions and repairs the way acrylic does. If your gums change shape, or you lose another tooth, a flexible denture often needs remaking rather than modifying. Acrylic can usually just be added to.

Best suited to partials, not full arches. Flexible dentures rely on gripping your remaining teeth. With no teeth left there is nothing for the clasps to hold, so a full flexible upper is rarely a sensible choice.

Less rigid support for heavy chewing. The flex that makes them comfortable also means less structural support than a cobalt chrome framework. If you are replacing several back teeth and chew hard, chrome distributes the load better.

Harder to keep pristine. The surface is slightly more porous than polished acrylic, so it needs consistent cleaning to avoid staining and odour.

Costs more. Typically £100 to £200 above the equivalent acrylic denture.

Flexible, Acrylic or Cobalt Chrome?

Three materials, three different jobs.

Choose flexible if appearance matters most, if you are replacing front teeth where clasps would show, if acrylic has irritated you before, or if you keep breaking dentures.

Choose acrylic if budget is the priority, if this is a temporary denture while you heal or save for something permanent, or if you expect to lose more teeth soon and want something that can be added to.

Choose cobalt chrome if you are replacing back teeth, chew heavily, or want the longest-lasting option. It lasts ten years or more against roughly five to seven for flexible.

A practical rule: front teeth and appearance point to flexible. Back teeth and function point to chrome. Short term or tight budget points to acrylic.

A Flexible Denture for One Missing Tooth

This is one of the most common requests we get, and flexible suits it particularly well.

A single tooth flexible denture, sometimes called a flexible flipper, is a small nylon appliance holding one replacement tooth, clasping discreetly onto the teeth either side. Because the clasps are gum-coloured, it is genuinely hard to spot, which matters far more for one front tooth than for a molar.

Compared with the acrylic version it is more comfortable, much less likely to snap, and considerably less visible. It costs more, and it cannot easily be added to if you lose another tooth later.

Our guide to single tooth denture material options compares all four materials side by side with current prices.

Who They Suit, and Who They Do Not

A good fit if you:

• Are replacing one to several teeth and still have healthy teeth either side
• Are replacing front teeth where metal clasps would be visible
• Have reacted badly to an acrylic denture before
• Have broken dentures previously
• Find rigid plates uncomfortable

Probably not the right choice if you:

• Have no upper or lower teeth left for the clasps to grip
• Are replacing several back teeth and chew heavily
• Expect to lose more teeth in the near future, since adding to nylon is difficult
• Have significant gum disease that needs treating first
• Want the cheapest possible option

Caring for a Flexible Denture

Slightly different from acrylic, and getting it wrong shortens its life.

Do rinse after eating, brush daily with a soft brush and a denture cleaner made for flexible or nylon dentures, and store it in water or denture solution overnight so it never dries out.

Do not use regular toothpaste, which is abrasive enough to scratch the surface and let it stain. Avoid hot or boiling water, which distorts thermoplastic permanently. Skip bleach-based products, which discolour nylon.

Take it out at night. Your gums need the rest and it reduces the risk of fungal infection underneath.

Keep the clasping teeth especially clean, since they collect plaque where the clasp sits and they are the teeth the whole denture depends on. Regular hygienist appointments are worth more with a partial denture than without one.

Frequently Asked Questions

How much are flexible dentures in the UK?

Roughly £400 to £1,200 per arch, most commonly £400 to £600, with London at the higher end. Ours start from £450. Both arches will be about double a single arch.

How long do flexible dentures last?

Around five to seven years with good care. Acrylic typically manages one to three, cobalt chrome ten or more. What usually ends a flexible denture is a change in gum shape rather than the material failing.

Are flexible dentures better than acrylic?

More comfortable, much more discreet and far harder to break. Less easy to adjust or add to, and more expensive. Better for appearance and comfort, worse for adaptability.

Can flexible dentures be repaired?

Sometimes, but not as readily as acrylic. Nylon does not bond to new material the way acrylic does, so damage or a lost tooth often means a remake. This is the main practical drawback.

What is a Valplast denture?

Valplast is a brand of nylon thermoplastic used to make flexible dentures, not a different treatment. It is the best known name, carries a lifetime guarantee against breakage, and costs more than generic thermoplastics that perform similarly.

Can you get a full set of flexible dentures?

Technically yes, and it is rarely advisable. Flexible dentures grip your remaining teeth, so with none left there is nothing to hold them. For a full arch, conventional acrylic or an implant-supported option works far better.

Do flexible dentures cause bad breath?

Only if they are not cleaned properly. The surface is slightly more porous than polished acrylic, so bacteria can build up if you skip cleaning. Daily brushing with the right cleaner prevents it.

Are flexible dentures available on the NHS?

Generally not. NHS dentures are made to a standard specification, usually acrylic. Flexible nylon is a private option at almost every practice.

Flexible Dentures in Elephant & Castle, London

If you are unsure whether flexible is right for your case, that is genuinely worth twenty minutes rather than a guess. The answer depends on which teeth you are replacing, what the clasping teeth are like, and whether you are likely to lose more.

Call 020 7928 4474 or book online. We are in Elephant and Castle, minutes from Waterloo, Borough, London Bridge and Southwark.

If you want to compare across everything first, our guides to denture costs, upper partial dentures and palateless dentures cover the alternatives.

Market pricing figures are indicative UK ranges from published 2026 cost guides. Our fees start from £450. Last reviewed August 2026.