Another copolymer hydrogel lens, called Polymacon, is a copolymer of hydroxyethyl methacrylate and Ethylene glycol dimethacrylate.
2.
An example of this involves the use of oligo ( e-caprolactone ) dimethacrylate / butyl acrylate composite with between 2 and 12 % magnetite nanoparticles.
3.
"' Dental composite resins "'are types of GMA and other dimethacrylate monomers ( TEGMA, UDMA, HDDMA ), a filler material such as silica and in most current applications, a photoinitiator.
4.
As with other composite materials, a dental composite typically consists of a resin-based matrix, such as a bisphenol A-glycidyl methacrylate ( BISMA ) resin like urethane dimethacrylate ( UDMA ), and an inorganic filler such as silica.
5.
As with other composite materials, a dental composite typically consists of a resin-based oligomer matrix, such as a bisphenol A-glycidyl methacrylate ( BISGMA ), urethane dimethacrylate ( UDMA ) or [ ( semi-crystalline polyceram ) ] ( PEX ), and an inorganic filler such as silicon dioxide ( silica ).
6.
Bunonocore made further advances in 1970 by developing bisphenol-a glycidyl dimethacrylate, which is a viscous resin commonly known as BIS-GMA . This material was used as the basis for many resin-based sealant / composite material developments in dentistry, as it is resistant to bacterial breakdown and forms a steady bond with etched enamel.
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