PMID- 19523541 OWN - NLM STAT- MEDLINE DCOM- 20100222 LR - 20131121 IS - 1878-7568 (Electronic) IS - 1742-7061 (Linking) VI - 6 IP - 1 DP - 2010 Jan TI - Effect of silica gel on the cohesion, properties and biological performance of brushite cement. PG - 257-65 LID - 10.1016/j.actbio.2009.06.010 [doi] AB - The cohesion of calcium phosphate cements can be improved by the addition of substances to either the solid or liquid phase during the setting reaction. This study reports the effect of silica gel on brushite cement cohesion. The cement was prepared using a mixture of beta-tricalcium phosphate (beta-TCP) and monocalcium phosphate monohydrate as the solid phase, while the liquid phase comprised carboxylic acids silica gel. This cement presents a shorter final setting time (FST), better cohesion and higher amount of unreacted beta-TCP than the cement prepared without silica gel. Furthermore, in vivo experiments using rabbits as an animal model showed that after 8 weeks of implantation cements modified with silica gel showed a similar new bone formation volume and more remaining graft in comparison with unmodified cements. Thus, the silica gel could be efficiently applied to reduce cement disintegration and to decrease the resorption rate of brushite cements. FAU - Alkhraisat, Mohammad Hamdan AU - Alkhraisat MH AD - Departamento de Quimica-Fisica II, Facultad de Farmacia, UCM, Plaza: Ramon y Cajal, sn, 28040 Madrid, Spain. mkhresat@farm.ucm.es FAU - Rueda, Carmen AU - Rueda C FAU - Jerez, Luis Blanco AU - Jerez LB FAU - Tamimi Marino, Faleh AU - Tamimi Marino F FAU - Torres, Jesus AU - Torres J FAU - Gbureck, Uwe AU - Gbureck U FAU - Lopez Cabarcos, Enrique AU - Lopez Cabarcos E LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090610 PL - England TA - Acta Biomater JT - Acta biomaterialia JID - 101233144 RN - 0 (Biocompatible Materials) RN - 0 (Bone Cements) RN - 0 (Calcium Phosphates) RN - 0 (Carboxylic Acids) RN - 0 (Gels) RN - 0 (beta-tricalcium phosphate) RN - 7631-86-9 (Silicon Dioxide) RN - O7TSZ97GEP (calcium phosphate, dibasic, dihydrate) SB - IM MH - Animals MH - Biocompatible Materials/chemistry MH - Bone Cements/*chemistry MH - Bone Regeneration MH - Calcium Phosphates/*chemistry MH - Carboxylic Acids/chemistry MH - Female MH - Gels/*chemistry MH - Inflammation MH - Macrophages/metabolism MH - Materials Testing MH - Rabbits MH - Silicon Dioxide/*chemistry MH - Time Factors EDAT- 2009/06/16 09:00 MHDA- 2010/02/23 06:00 CRDT- 2009/06/16 09:00 PHST- 2009/03/02 00:00 [received] PHST- 2009/06/04 00:00 [revised] PHST- 2009/06/04 00:00 [accepted] PHST- 2009/06/16 09:00 [entrez] PHST- 2009/06/16 09:00 [pubmed] PHST- 2010/02/23 06:00 [medline] AID - S1742-7061(09)00262-1 [pii] AID - 10.1016/j.actbio.2009.06.010 [doi] PST - ppublish SO - Acta Biomater. 2010 Jan;6(1):257-65. doi: 10.1016/j.actbio.2009.06.010. Epub 2009 Jun 10.