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What is PMMA

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What is PMMA and How Is It Used in the Medical World?

Poly(methyl methacrylate), or PMMA,  known by many different names, including Plexiglas and acrylic. The biocompatibility of PMMA material has gained it the medical moniker of “bone cement.”

PMMA  often used as a lighter, shatter-resistant alternative to glass in everything from windows, aquariums and hockey rinks. Therefore, it’s hard to fathom that this easy-to-process, low-cost, versatile material  also used in dentures, bone implants and more.

Despite being formed by polymerizing methyl methacrylate (MMA) — an irritant and possible carcinogen —  extremely biocompatible.

This biocompatibility can be attributed to PMMA’s resistance to:

  • Temperatures stress
  • Chemical reactions
  • Human tissue
  • Bioprocesses

As bone cement, PMMA used to fill in the gaps between implants and bones. material is good for this procedure because it is biocompatible and simple to polymerize within a hospital environment.

However, a better understanding of material intelligence can help answer whether PMMA is always a good option for in vivo implants.

Though PMMA Material Is Biocompatible, Is It Always the Best Medical Option?

In an operation room, bone cement made from a powder and a liquid. The powder composed of MMA copolymers while the liquid contains MMA monomers and chemical accelerators and inhibitors.

Mixing the powder and liquid creates a putty which can  applied between the bone and the implant. Think of the putty like the grout between tiles: It anchors the implant to the bone.

However, there are a number of reasons why material is not ideal for this job:

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