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Material guide

Polymethyl Methacrylate (PMMA)

PMMA is an acrylic denture resin used for patient-specific bases, repairs, and relining, with high-performance polymers as alternatives.

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The short answer

PMMA is an acrylic resin used in dentistry for patient-specific full or partial denture bases, denture repairs, and relining.

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Polymethyl Methacrylate (PMMA) dental educational illustration

What is PMMA used for?

Dental uses of PMMA
UsePatient meaning
New denture baseA patient-specific base can be made for a full or partial denture.[1][2]
Repair or relineThe resin can repair a fractured denture or reline the surface that contacts tissue.[1][2]

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PMMA alongside other denture materials
Material groupWhat the evidence connects it with
PMMAA commonly used acrylic denture material.[1][2]
PEEK and PEKKHigh-performance polymers studied for oral prosthetics, including denture bases.[1][2]

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What does PMMA do in a denture?

The resin forms the base of a full or partial denture. Its role is structural: it provides the patient-specific base to which the denture arrangement belongs.

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Where is PMMA used?

The material is used for denture bases, for a new full or partial denture, and for rebasing, relining, or repairing a fractured denture.

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What materials may be considered instead?

PEEK and PEKK are high-performance polymers studied as oral prosthetic materials and as alternatives to ceramic and metal in restorations.

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What does PMMA mean for a patient?

A PMMA denture base is made for the individual device. The denture-base devices covered by this guidance are not available for over-the-counter use.

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What safety points matter with denture resins?

Biocompatibility testing checks whether components that directly contact the patient produce an acceptable biological response. Material testing can also identify an adverse biological response that needs evaluation.

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Frequently asked questions

Can PMMA be bought as an over-the-counter denture repair kit?

The denture-base devices covered here are not available for over-the-counter use; they are intended for patient-specific full or partial dentures.

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