title: A study on the effect of 60Co gamma ray irradiation on the abrasion of dental polymethylmethacrylate (part 1).
mesh_terms: D002074:Butanones; D003037:Cobalt Radioisotopes; D005720:Gamma Rays; D066298:In Vitro Techniques; D008689:Methacrylates; D008768:Methylmethacrylates / Q000528:radiation effects*; D009281:Naphthalenes; D010545:Peroxides; D013499:Surface Properties
chemical_list: D002074:Butanones; D003037:Cobalt Radioisotopes; D008689:Methacrylates; D008768:Methylmethacrylates; D009281:Naphthalenes; D010545:Peroxides; C011007:methyl ethyl ketone peroxide