title: Mechanical properties of acrylic bone cement containing PMMA-SiO2 hybrid sol-gel material.
abstract: An organic-inorganic hybrid material, poly(methyl methacrylate) (PMMA)-SiO2 (SiO2 content of 72 wt%), was prepared by incorporating PMMA structure units covalently into an SiO2 glass network via the sol-gel approach. The hybrid sol-gel material PMMA-SiO2 was subsequently used as the solid powder component of bone cement and its mechanical properties were evaluated. The effects of the addition of tricalcium phosphate (TCP), hydroxyethyl methacrylate (HEMA), and ethylene glycol dimethacrylate (EGDMA) on the properties of the sol-gel hybrid bone cement were also investigated. The influence of these components on the temperature rise during polymerization was discussed. It was found that the new bone cement containing PMMA-SiO2 hybrid sol-gel material had higher modulus than that of Simplex-P bone cement. The addition of TCP in the new bone cement increased the Young's modulus and the polymerization time; the inverse was observed for the tensile, bending, and compressive strengths, and the polymerization temperature. The addition of HEMA and EGDMA in the new bone cement had the opposite effect of TCP. The comparison between the new sol-gel bone cement and the commercial Simplex P bone cement was discussed.
authors.affiliation: Department of Chemical Engineering, Chang Gung College of Medicine and Technology, Tao-Yuan, Taiwan, Republic of China.
authors.forename: J M
authors.initials: JM
authors.lastname: Yang
authors.forename: C S
authors.initials: CS
authors.lastname: Lu
authors.forename: Y G
authors.initials: YG
authors.lastname: Hsu
authors.forename: C H
authors.initials: CH
authors.lastname: Shih
mesh_terms: D001672:Biocompatible Materials; D001843:Bone Cements / Q000737:chemistry*; D002130:Calcium Phosphates; D008689:Methacrylates / Q000737:chemistry*; D020366:Methylmethacrylate; D008768:Methylmethacrylates / Q000737:chemistry*; D017646:Organosilicon Compounds / Q000737:chemistry*; D011109:Polymethacrylic Acids; D012822:Silicon Dioxide; D013314:Stress, Mechanical; D013696:Temperature; D013718:Tensile Strength; D013816:Thermodynamics; D013997:Time Factors
chemical_list: D001672:Biocompatible Materials; D001843:Bone Cements; D002130:Calcium Phosphates; D008689:Methacrylates; D008768:Methylmethacrylates; D017646:Organosilicon Compounds; D011109:Polymethacrylic Acids; C485828:alpha-tricalcium phosphate; C106992:poly(methyl methacrylate-co-3-(trimethoxysilyl)propyl methacrylate); C106991:poly(methyl methacrylate-silicon dioxide); C485830:tetracalcium phosphate; D020366:Methylmethacrylate; C005044:hydroxyethyl methacrylate; C485838:calcium phosphate, monobasic, anhydrous; D012822:Silicon Dioxide; C004919:ethylene dimethacrylate; C020243:calcium phosphate; C485829:calcium phosphate, dibasic, anhydrous