摘要
目的:将季铵盐抗菌单体甲基丙烯酰氧乙基一正十六烷基一二甲基氯化铵(DMAE-CB)添加到窝沟封闭剂中获得改性封闭剂,评价添加季铵盐单体对封闭剂机械性能的影响。方法:将DMAE-CB添加到商品窝沟封闭剂Helioseal中获得DMAE-CB改性封闭剂作为实验组;未添加抗菌单体的Helioseal作为阴性对照,具备氟释放功能的窝沟封闭剂Helioseal F作为阳性对照,研究三组封闭剂在牙釉质表面的接触角、聚合转化率、表面硬度等机械性能。结果:DMAE-CB抗菌单体的添加并没有影响窝沟封闭剂在牙釉质表面的接触角、聚合转化率和硬度(P>0.05)。结论:少量DMAE-CB抗菌单体的添加并没有对窝沟封闭剂本身的机械性能造成影响,具有临床应用的可行性。
Objective：This study was attempted to incorporate an antibacterial monomer,methacryloxylethyl cetyl dimethyl ammonium chloride（DMAE-CB）,into a pit and fissure sealant,and to evaluate its mechanical properties of this DMAE-CB-incorporated sealant.Method：DMAE-CB was incorporated into a clinically used sealant,Helioseal.Helioseal without DMAE-CB served as a negative control.Helioseal F,containing a fluoride-releasing resin,was used as a positive control.The surface contact angle,degree of conversion,microhardness and microleakage were measured and compared.Result：There were no significant differences in the contact angle,degree of conversion,microhardness between the DMAE-CB-incorporated group and the negative control（P 0.05）.Conclusion：The incorporation of small amounts of the monomer DMAE-CB showed no influence on the contact angle,degree of conversion,hardness and microleakage of the parental material.
出处
《临床口腔医学杂志》
2011年第6期352-355,共4页
Journal of Clinical Stomatology
基金
国家自然科学基金项目(30772444)
关键词
抗菌
窝沟封闭剂
季铵盐
接触角
转化率
硬度
antibacterial
pit and fissure sealant
quaternary ammonium
contact angle
degree of conversion
hardness
