| Autor: |
Zhihong Dong, Jiang Chang, Andrew Joiner, Yuekui Sun |
| Jazyk: |
angličtina |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Journal of Dental Sciences, Vol 8, Iss 4, Pp 440-443 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
1991-7902 |
| DOI: |
10.1016/j.jds.2013.04.005 |
| Popis: |
Background/purpose: Severe tooth demineralization by production of acid leads to dental caries. In this study, we investigate the repairing effect of tricalcium silicate (Ca3SiO4) ceramics on acid-etched enamel in natural human saliva. Materials and methods: The demineralization of enamel discs was simulated with citric acid, and they were then brushed with Ca3SiO4 paste. The treated discs were placed in human saliva for 1 day or 3 days at 36.5°C, and then the surface morphologies and structures were observed by atomic force microscopy (AFM) and transmission electron microscopy (TEM). Results: Ca3SiO4 ceramics can induce enamel remineralization in human saliva and form a compact Ca–P mineralized layer onto the etched enamel surface. After soaking for 1 day, the thickness was 200–250 nm and the interface bonded well. The chemical components and structure of the mineralized layer were similar to those of the enamel matrix. After soaking for 3 days, the surface roughness of the enamel surface became lower. Conclusion: The bioactive Ca3SiO4 repaired the acid-etched enamel successfully and protected the demineralized teeth. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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