Initial solubility and durability of polymeric calcium phosphate cements

聚合磷酸钙骨水泥的初始溶解度和耐久性

• 批准号: 10671792
• 负责人: MATSUYA Yoko
• 金额: $ 2.11万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10671792/
• 关键词: tetracalcium phosphate; poly (methyl vinyl ether-maleic acid); poly (acrylic acid); cement; hydroxyapatite; α-tricalcium phosphate cements; initial solubility; durability; α-リン酸3カルシウム

Mechanical strength and in vitro durability of four experimental and two commercial calcium phosphate dental cements were assessed. Hydroxyapatite formation processes in these calcium phosphate cements were also examined by means of x-ray diffraction analysis and their relationship with mechanical strength was discussed. The hydroxyapatite-forming polymeric calcium phosphate cements prepared from medium and fine tetracalcium phosphate powder and poly (methyl vinyl ether-maleic acid) showed lower compressive strength and higher flexural strength than the teracalcium phosphate cement prepared using poly (acrylic acid) and non hydroxyapatite-forming commercial α-tricalcium phosphate cements. The hydroxyapatite formation seemed to correspond to lowering in compressive strength of the cements based on tetracalcium phosphate and poly (methyl vinyl ether-maleic acid), while, in the case of the cement based on tetracalcium phosphate and poly (acrylic acid), no relationship was observed between the hydroxyapatite formation and the compressive strength. The hydroxyapatite-forming polymeric cements prepared using finely ground tetracalcium phosphate powder showed enhanced strength, even after prolonged immersion in water, compared to similar cements derived from the large sized tetracalcium phosphate. Initial solubility of both the experimental polymeric calcium phosphate cements seemed to be lower than that of the commercial calcium phosphate cements, which were prepared using organic acids.

还通过X射线衍射分析研究了四个实验性和两个实验性磷酸盐牙科的体外耐用性。来自磷酸盐钙的磷酸钙钙含量（甲基乙烯基醚酸）的磷酸盐水泥欠磷酸二氧化碳水泥（丙烯酸）聚（丙烯酸）聚（丙烯酸）Atite atite atite atiteα-磷酸盐磷酸盐和磷酸二磷酸二磷酸甲基甲基含甲基乙烯基乙烯基乙烯基乙烯基乙烯基乙烯基乙烯基乙烯基乙烯基元素含量（甲基丙烯酸）。 -maleic酸），而在基于磷酸四钙的水泥和聚（丙烯酸）酸的情况下，甲基磷酸盐的磷酸盐粉也会显示出磷酸盐粉，即使在水中延长后，也会显示出磷酸盐粉从磷酸盐的大尺寸四钙磷酸盐的初始溶解度。

项目成果

Matsuya Y., Matsuya S., Antonucci J. M., Takagi S., Chow L. C., Akamine A.: "Effect of powder grinding on hydroxyapatite formation in a polymeric calcium phosphate cement prepared from tetracalcium phosphate and poly (methyl vinyl ether-maleic acid)"Bioma

Matsuya Y.、Matsuya S.、Antonucci J. M.、Takagi S.、Chow L.C.、Akamine A.：“粉末研磨对由磷酸四钙和聚（甲基乙烯基醚-马来酸）制备的聚合磷酸钙水泥中羟基磷灰石形成的影响

Matsuya S., Matsuya Y., Takagi S., Chow L. C.: "Effect of fluoride on apatite formation from CaィイD24ィエD2(POィイD24ィエD2)ィイD22ィエD2O in 0.1 mol LィイD1-1ィエD1 KHィイD22ィエD2POィイD24ィエD2"J Materials Science : Materials in Medicine. 9. 325-331 (1998)

Matsuya S.、Matsuya Y.、Takagi S.、Chow L.C.：“氟化物对 0.1 mol Li D1-1 D1 KH D22 D2PO D24 D2 中 CaD24D2(POD24D2)D22D2O 形成磷灰石的影响”J 材料科学：医学材料。 9. 325-331 (1998)

Matsuya S.: "Effect of fluoride on apatite formation from Ca_4(PO_4)_2O in 0.1mol L^<-1> KH_2PO_4"J Materials Science: Materials in Medicine. 9. 325-331 (1998)

Matsuya S.：“0.1mol L^<-1> KH_2PO_4 中氟化物对 Ca_4(PO_4)_2O 形成磷灰石的影响”J 材料科学：医学材料。

明石 あかね: "光硬化型グラスアイオノマーセメントの吸水について"日本歯科保存学雑誌. 41・3. 565-571 (1998)

Akane Akashi：“关于光固化玻璃离子水门汀的吸水率”日本保守牙科杂志 41・3（1998 年）。

Akashi A: "The relationship between water absorption characteristics and the mechanical strength of resin-modified glass-ionomer cements in long-term water storage"Biomaterials. 20. 1573-1578 (1999)

明石A：“长期储水的树脂改性玻璃离子水门汀吸水特性与机械强度的关系”生物材料。