作者
Dong Xie, Yiming Weng, Xia Guo, Jun Zhao, Richard L Gregory, Cunge Zheng
发表日期
2011/5/31
期刊
Dental Materials
卷号
27
期号
5
页码范围
487-496
出版商
Elsevier
简介
OBJECTIVE
The objective of this study was to use the newly synthesized poly(quaternary ammonium salt) (PQAS)-containing polyacid to formulate the light-curable glass-ionomer cements and study the effect of the PQAS on the compressive strength and antibacterial activity of the formed cements.
MATERIALS AND METHODS
The functional QAS and their constructed PQAS were synthesized, characterized and formulated into the experimental high-strength cements. Compressive strength (CS) and Streptococcus mutans viability were used to evaluate the mechanical strength and antibacterial activity of the cements. Fuji II LC cement was used as control. The specimens were conditioned in distilled water at 37°C for 24h prior to testing. The effects of the substitute chain length, loading as well as grafting ratio of the QAS and aging on CS and S. mutans viability were investigated.
RESULTS
All the PQAS-containing …
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D Xie, Y Weng, X Guo, J Zhao, RL Gregory, C Zheng - Dental Materials, 2011