Preparation, Physical-Chemical Characterization, and Cytocompatibility of Polymeric Calcium Phosphate Cements

Figure 5

X-ray diffraction pattern of the three types of polymeric cements (Type I, Type II, and Type III CPCs). (A) Unreacted powder component. (B) Set product of Type I cement. (C) Set product of Type II cement. (D) Set product of Type III cement. Different arrows indicating the characteristic peaks of the different crystalline phases of the X-ray diffraction pattern; cross-hatched arrows indicate the crystal phase of calcium hydrogen phosphate hydrate, black arrows portlandite, grey arrows hydroxyapatite, and gradient arrows calcite.