Mechanical properties, fluorine release behavior and bacterial inhibition of hydroxyapatite-glass ionomer cement
10.3969/j.issn.1001-3733.2016.05.008
- VernacularTitle:羟基磷灰石-玻璃离子水门汀的机械性能、氟释放行为与抑菌效果
- Author:
Yue ZHAO
;
Yuansheng DING
;
Yu KONG
;
Baohua LI
;
Qingling YANG
- Keywords:
Glass ionomer cement(GIC);
Hydroxyapatite (HA);
Mechanical properties;
Fluorine release behavior;
Bacterial inhibition
- From:
Journal of Practical Stomatology
2016;32(5):631-634
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate mechanical properties,fluorine release behavior and bacteria inhibition effect of hydroxyapatite-improved glass ionomer cement(HA/GIC).Methods:HA/GIC was prepared with HA mass fraction of 28％.Bending strength and compressive strength of HA/GIC and GIC were measured by an universal material testing machine.Microstructure of the materials was observed by scanning microscope technique (SEM).Accumulation of fluorine release was measured by fluorine ion selective electrode.Bacterial inhibition of total bacteria and Streptococcus mutans was monitored by fluorescence in situ hybridization.Results:Bending strength,compressive strength and fluorine release accumulation of HA/GIC were significantly higher than those of GIC (P ＜ 0.05).There were many.irregular polymerized particle monomers and micro cracks within the GIC.In HA/GIC,hydroxyapatite particles were connected with original composition.Bacterial inhibition of total bacteria and Streptococcus mutans by HA/GIC was more effective than that by GIC.Conclusion:HA/GIC has perfect mechanical properties,fluorine release behavior and bacterial inhibition effect.
