Mechanical and biological properties of bioactive bone cement containing silica glass powder

✍ Scribed by Kobayashi, Masahiko ;Nakamura, Takashi ;Tamura, Jiro ;Iida, Hirokazu ;Fujita, Hiroshi ;Kokubo, Tadashi ;Kikutani, Takemi

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 455 KB
• Volume: 37
• Category: Article
• ISSN: 0021-9304
• DOI: 10.1002/(sici)1097-4636(199710)37:1<68::aid-jbm9>3.0.co;2-h

✦ Synopsis

Silica glass powder (SG-P) made by a fusing-packing the intramedullary canals of rat tibiae. An affinity quenching method was added as a second filler to a bioactive index was calculated for each cement; this was the length of bone cement consisting of MgO-CaO-SiO 2 -P 2 O 5 -CaF 2 apa-bone directly apposed to cement expressed as a percentage tite and wollastonite containing glass-ceramic powder (AW-of the total length of the cement surface. Histological exami-P) and bisphenol-a-glycidyl methacrylate (Bis-GMA)-based nation of implanted tibiae for up to 26 weeks showed that resin, to achieve a higher mechanical strength and better the affinity indices decreased with SG-P content and that handling properties in use. Five types of cement were used, those of all the cement groups increased with time. At 26 containing different weight ratios of AW-P/SG-P (Group weeks, Groups 1 and 2 had almost identical affnity indices 1 ϭ 100/0; Group 2 ϭ 75/25; Group 3 ϭ 50/50; Group (79% and 75%; no significant difference) but those of the 4 ϭ 25/75; and Group 5 ϭ 0/100) as filler, to evaluate the other groups remained at Ͻ50%. Group 2 had better mechanieffect of SG-P content on the biological, mechanical, and cal and handling properties than Group 1, and an SG-P conhandling properties. The total proportion of filler added to tent in the filler of no more than 25% w/w did not interfere the cements was 85% w/w. The compressive, bending, and strongly with the bioactivity of the cement. © John Wiley & tensile strengths and fracture toughness of the cements in-