polymethylmethacrylate


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Related to polymethylmethacrylate: Perspex, plexiglass, PMMA, Acrylic plastic

polymethylmethacrylate

, polymethyl methacrylate (pol′ē-meth′ĭl-meth″ak′rĭ-lāt″) [ poly- + methyl + methacryl(ic acid) + -ate],

PMMA

C5H8O2, a transparent, colorless acrylic polymer. It is used in optics and ophthalmology to make intraocular lenses for cataract surgery, in dentistry as a denture base material, in cosmetic surgery as a soft-tissue filler, and in the fabrication of dialysis membranes with high biocompatibility.
References in periodicals archive ?
Polymethylmethacrylate (PMMA) was injected under biplanar fluoroscopic guidance in all cases; a maximum amount of 3 mL of PMMA was used in each case.
The introduction of polymethylmethacrylate (PMMA) into the defects created by extensive osteolysis and bone destruction as an adjunct to open reduction and internal fixation of pathologic fractures has improved clinical results.
7] Polymethylmethacrylate Acripet TF-3 Glass transition temperature [T.
Unfortunately, transparent thermoplastic polymers such as polymethylmethacrylate (PMMA) do not have sufficient mechanical strength and toughness.
Poor bone quality usually necessitates long constructs, segmental fixation, anterior and posterior surgery, and polymethylmethacrylate (PMMA) augmentation.
ICI had initiated legal proceedings in British Courts to prohibit the sale of Velite, an acrylic resin used for the manufacture of polymethylmethacrylate washbasins.
Two and a half years ago, Dow Chemical introduced a polymethylmethacrylate (PMMA) resin for use in ferrous EPC applications.
The result is sheath/core type of filaments for polypropylene and polymethylmethacrylate.
Reported uncommon short-term complications include infection, cement embolization, and extradural extravasation of the polymethylmethacrylate bone cement (predominately with vertebroplasty), causing nerve root or spinal cord impingement, and in rare cases necessitating decompressive surgery.
Augmentation with polymethylmethacrylate or hydroxyapatite
RF-TVA incorporates the use of navigational osteotomes for controlled cavity creation and RF energy to enhance the polymethylmethacrylate (PMMA) bone cement into an ultra-high viscosity state, which allows for longer working times and controlled delivery into the vertebral body.