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Rheological Properties of Calcium Phosphate Cement Mixed with 2 Kinds of Setting Solution  

Chang, Seok-Woo (Department of Conservative Dentistry, The institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Kwon, Ho-Beom (Department of Prosthodontics, The institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Yoo, Hyun-Mi (Department of Conservative Dentistry, The institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Park, Dong-Sung (Department of Conservative Dentistry, The institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Oh, Tae-Seok (Department of Conservative Dentistry, The institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine)
Bae, Kwang-Shik (Department of Conservative Dentistry, School of Dentistry, Seoul National University)
Publication Information
Journal of Dental Rehabilitation and Applied Science / v.24, no.3, 2008 , pp. 311-316 More about this Journal
Abstract
Calcium phosphate cement (CPC) has been used as bone substitute successfully due to good biocompatibility and osteoconductivity. One of the important mechanical characteristics of CPC is flowablility, which can be evaluated by measuring rheological parameters. However, there have been few studies that measured rheological properties of CPC. The purpose of this study was to evaluate the rheological properties of CPC paste mixed with 2 kinds of setting solutions, 2% hydroxyprophyl methylcellulose (HPMC) and 35% polyacrylic acid (PAA). The CPC used was dicalcium phosphate dihydrate (DCPD). Rheological properties of CPC paste were measured using rheometer. The statistical analysis was carried out with Mann-whitney test with Bonferronis collection. CPC with both setting solutions showed shear thinning behavior. CPC with 2% HPMC showed signigicantly higher complex viscosity than CPC with 35% PAA(p<0.05).
Keywords
calcium phosphate cement; hydroxyprophyl methylcellulose; polyacrylic acid; theological characteristics;
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