Fluor Protector抑制饮料致牛牙釉质脱矿的实验研究

目的 :研究FluorProtector对饮料导致牛牙釉质脱矿的抑制作用。方法 :将 40个牛牙标本分成实验组和对照组 ,每组又分为 2个亚组。实验组在FluorProtector预处理釉质后用不同种类饮料处理 ,对照组未经FluorProtector预处理而直接用饮料处理。饮料的处理是 5min/次 ,5次 /d ,共处理 7d。采用微量化学分析法测定饮料在处理牙釉质后 1～ 7d饮料中钙和磷浓度的变化。结果 :实验组与对照组经同种饮料处理后钙、磷溶出的浓度明显不同 ,表现为实验组低于对照组 ,差异具有显著性 (P <0 .0 5 )。结论 :FluorProtector对饮料所致的牙釉质脱矿具有明显的抑制作用 ,并随时间的延长而减弱。

Inhibitory effect of Fluor Protector on demineralization of bovine enamel caused by beverages

Objective: To investigate the inhibitory effect of Flu or Protector on the demineralization of bovine enamel caused by some beverages. Methods: Forty bovine teeth were equally divided into experimental and control groups, each of them were subdivided into two groups. The enamel sp ecimens of the experimental group were pretreated with Fluor Protector and then exposed to carbonated drinks and fruit juice respectively,the enamel specimens o f control group were exposed to beverages directly. All the enamel specimens wer e exposed to beverages 5 times a day and for 5 minutes each time. After 7- day exposure,the concentration of calcium and phosphate in the beverages were measu red by EL 312e Micro-Plate. Results: The concentration of calci um and phosphate in the corresponding beverage of experimental group was lower t han that in control group in the same expossure time(P<0.05) except the phos phate concerntration in carbonated drinks in 7-day exposure(P>0.05).Conclusions: Fluor Protector can inhibit the demineralization of bovin e enamel caused by beverages.The inhibitory effect of Fluor Protector decreases as the exposure time prolonges.