咀嚼无糖口香糖对含漱蔗糖溶液后牙菌斑原位pH值的影响

被引:6
作者
董艳梅
潘一春
王冬梅
曹采方
机构
[1] 北京大学口腔医学院牙体牙髓科,北京大学口腔医学院正畸科,北京大学口腔医学院牙体牙髓科,北京大学口腔医学院牙周科,,,
关键词
牙菌斑; 口香糖; 漱口药; 蔗糖; 木糖醇;
D O I
暂无
中图分类号
R780.1 [口腔疾病的预防与卫生];
学科分类号
1003 ;
摘要
目的 通过对牙菌斑原位pH值变化的动态监测 ,观察咀嚼无糖口香糖对牙菌斑原位pH值的影响。方法 采用受试者自身对照的临床试验方法 ,选择 16名健康成人志愿者为受试者 ,年龄 2 3~ 32岁 ,其中男性 6名 ,女性 10名。首先测定受试者 4 8h菌斑的静止pH值 ,以及受试者用10 %蔗糖溶液含漱 1min后在 5、10、2 0和 30min时菌斑的pH值 ,取得受试者的Stephan曲线作为基线对照 ;而后观察咀嚼两种益达无糖口香糖对含漱 10 %蔗糖溶液后菌斑pH值变化的影响。菌斑原位pH值的测定采用pH微电极接触法在口内直接测量。结果 含漱 10 %蔗糖溶液后立即开始咀嚼无糖口香糖可使菌斑pH值在各检测时间点 (含漱 10 %蔗糖溶液后 5、10、2 0和 30min)均维持在静止pH水平 ,无明显下降 ;含漱 10 %蔗糖溶液后在 5min时开始咀嚼无糖口香糖则使菌斑pH值从含漱蔗糖溶液后 5min时的 5 .5 9迅速回升至 10min时的 6 .98。结论 受到蔗糖攻击后 ,咀嚼无糖口香糖可迅速缓冲菌斑的酸性产物 ,升高菌斑pH值。
引用
收藏
页码:26 / 28
页数:3
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