研究了用有机聚合物调和液制备的聚合磷酸钙骨水泥(PCPC),实验表明聚丙烯酸(PCA)水溶液或丙烯酸和衣康酸共聚物(PAIA)水溶液中羧基基团与碱性TTCP发生酸碱反应,形成聚羧酸钙包裹TTCP和DCPA颗粒的结构,凝结时间大大缩短,抗压强度显著提高,反应后期有少量羟基磷灰石微晶生成.加入PCA或PAIA聚合酸使PCPC固化体24h抗压强度分别达到81.0MPa和90.6MPa,PCPC在牙科等临床领域有良好应用前景.
参考文献
| [1] | Brown W E;Chow L C .Dental restorative cement pastes[P].US 4518430 |
| [2] | Hamamishi C;Kitamoto K;Ohura K et al.Self- setting,bioactive and biodegradable TTCP - DCPD apatite cement[J].Journal of Biomedical Materials Research,1996,32(03):383-389. |
| [3] | Costantino P D;Friedman C D;Jones et al.Experimenatal hydroxyapatitecement cranioplasty[J].Plastic and Reconstructive Surgery,1992,90(02):174-185. |
| [4] | Brown W E;Chow L C .Combinations of sparingly solute calcium phosphates in slurries and pastes as mineralizers and cements[P].US 4612053,1986-09-16. |
| [5] | Brook IM;Hatton PV .Glass-ionomers: bioactive implant materials.[J].Biomaterials,1998(6):565-571. |
| [6] | Mount GJ .Clinical performance of glass-ionomers.[J].Biomaterials,1998(6):573-579. |
| [7] | Rakugi M;Komura T;Otsuchi T et al.Properties of tetracalcium phosphate- citric acid complex cement[J].Journal of Dental Research,1989,68:945. |
| [8] | Matsuya Y;Antouncci J M;Maatsuya S et al.Polymeric calcium phosphate cement derived from poly(methylvinylethermaleic acid)[J].Dental Materials,1996,12:2-7. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%