The Effect of pH Value on Phase Transformation of Calcium Phosphate Cement

被引：9

作者：

Cheng, Hsin-Chung ^{[1
,2
]}

Chu, Kuo-Tien ^{[2
,3
]}

Teng, Nai-Cia ^{[2
]}

Tsai, Hsien-Lung ^{[4
]}

Ou, Keng-Liang ^{[5
,6
,7
]}

Ou, Shih-Fu ^{[5
,7
,8
,9
]}

机构：

[1] Taipei Med Univ Hosp, Dept Dent, Div Orthodont, Taipei 110, Taiwan

[2] Taipei Med Univ, Coll Oral Med, Dept Dent, Taipei 110, Taiwan

[3] Taipei Med Univ Hosp, Dept Dent, Div Prosthodont, Taipei 110, Taiwan

[4] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Taipei 110, Taiwan

[5] Taipei Med Univ, Res Ctr Biomed Devices & Prototyping Prod, Taipei 110, Taiwan

[6] Taipei Med Univ, Res Ctr Biomed Implants & Microsurg Devices, Taipei 110, Taiwan

[7] Taipei Med Univ, Coll Oral Med, Grad Inst Biomed Mat & Tissue Engn, Taipei 110, Taiwan

[8] Natl Kaohsiung Univ Appl Sci, Dept Mold & Die Engn, Kaohsiung 807, Taiwan

[9] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, Kaohsiung 807, Taiwan

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2014年 / 11卷 / 02期

关键词：

CANAL SEALER-FILLER; LOW-TEMPERATURE; HYDROXYAPATITE; MECHANISM;

D O I：

10.1111/ijac.12020

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of various pH values of sodium phosphate buffer solution (PBS), 4.0, 6.0, 8.0, and 9.0 on calcium phosphate cement (CPC) prepared by mixing monocalcium phosphate monohydrate (MCPM), calcium carbonate, and PBS were studied. The phase evolution takes place in three steps: Firstly, the MCPM and calcium carbonate crystals dissolve in the PBS and precipitate in the form of DCPD crystals. Then, after 12h, DCPD begins to convert to amorphous calcium phosphate (ACP). Finally, the metastable ACP phase converts into stable CDHA. With an increase in the pH of the PBS, the CDHA content in the CPC increased.

引用

页码：364 / 370

页数：7

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