Biodegradation and Characterization of Phase Separated NaCa(PO3)3 and KCa(PO3)3 from Pure Ca(PO3)2

Sung Su Chun; Timur R. Tadjiev; Kyo Han Kim; J.H. Lee; Suk Young Kim

doi:10.4028/www.scientific.net/KEM.309-311.211

Paper Titles

Influence of Alginate on Precipitation of Calcium Phosphates
p.195

Effects of pH on the Transformation of Gypsum to Carbonate Apatite in the Presence of Ammonium Hydrogen Phosphate
p.199

Effects of Paste Type Calcium Sulfate on the Periodontal Healing of 3-Wall Intrabony Defects in Dogs
p.203

Osteoblastic Response to Resorbed Ceramic Surfaces; The Role of the Osteoclast in Osteoconduction
p.207

Biodegradation and Characterization of Phase Separated NaCa(PO₃)₃ and KCa(PO₃)₃ from Pure Ca(PO₃)₂
p.211

Enhancing Bone Regeneration by Synthetic Peptide-Coated CMP Granules
p.215

Preparation of Submicron Biphasic α-TCP/HA Powders
p.219

Dissolution Behavior of Submicron Biphasic Tricalcium Phosphate Powders
p.223

Comparative Study of the Degradation Behavior of Mechanically Mixed and Chemically Precipitated Biphasic Calcium Phosphates
p.227

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Biodegradation and Characterization of Phase Separated NaCa(PO₃)₃ and KCa(PO₃)₃ from Pure Ca(PO₃)₂

Abstract:

Degradation characteristics of calcium metaphosphate (CMP) ceramics substituted by 5, 10, 15, 20 mol% of NaPO3 and KPO3, respectively, was evaluated in revised simulated body fluid (R-SBF) by measuring the weight change, flexural strength, crystalline phases, and surface morphology with immersion period. The weight loss of CMP substituted by KPO3 was significantly higher than that of CMP substituted by NaPO3. The weight loss in the KCa(PO3)3–CMP samples was due to the dissolution of KCa(PO3)3 phase. The flexural strength of NaCa(PO3)3–CMP samples increased, however, that of KCa(PO3)3–CMP samples decreased significantly due to the dissolution of KCa(PO3) phase with immersion period. The dissolution of KCa(PO3)3 phase formed a pore structure in KCa(PO3)3–CMP samples.