APPLICATION OF METHYL METHACRYLATE POLYMER IN DENTISTRY
D. K. Awasthi* and Gyenendra Awasthi
ABSTRACT
Polymer has now become very useful for the treatment of dental problem. A fruitful and vast area of research on
dental material is very important. Dental composites consists of a reinforcing filler of small inorganic particles,
generally glass or quartz. Such materials are mixed in matrix of organic polymer A recently well known matrix is
bis phenol A-glycidal methacrylate(bis-GMA). This is used because its di methacrylate monomer is difunctional,
crosslinking and polymerization take place simultaneously, a product is obtained which is very hard material used
in occlusive application. Methyl methacrylate(MMA)polymer is commonly used as group of polymers. It contains
good mechanical properties like rigidity, wear resistance and strength and also has many useful processing
properties as easy to mix, simple to process, cure and shapable. It is biocompatible i.e., non –toxic, non-irritating,
tasteless, odourless and resistance to microbial colonization. MMA has aesthetic properties like translucency,
transparency. It is chemically resistant in oral part of body. It had acceptable cost. Its density is 0.945g/Ml with
54.3KJ/mol heat of polymerization, colourless, immiscible with water but miscible in organic solvent and
flammable in nature.
Keywords: A-glycidal methacrylate (bis-GMA), Methyl methacrylate(MMA), Rigidity, Biocompatible.
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