咀嚼无糖口香糖对成年人菌斑指数的影响

目的 评价麦芽糖醇口香糖对菌斑集聚水平的影响。方法 60名年龄于25~50岁之间,符合纳入标准的志愿者,按照性别、Qu igley-Hein(Turesky改良)菌斑指数(MPI)随机分为3组,每组20人,3组分别为麦芽糖醇口香糖组(MCG)、木糖醇口香糖组(XCG)、单纯胶基口香糖组(GB);指导志愿者咀嚼口香糖,每天5次,每次2粒(约1.4 g/粒),持续12周。通过记录MPI来评价菌斑集聚水平的变化,采用多因素重复测量方差分析的方法对处理因素,时间因素,以及处理与时间交互因素进行分析(P<0.05)。结果 与基线值相比,MCG组、XGG组、GB组受试者MPI分别下降了48.1%、52.4%、21.6%,MCG组与XCG组之间无显著性差异(P>0.05),MCG组、XCG组与GB组之间均有显著性差异(P<0.01)。结论 传统木糖醇口香糖与麦芽糖口香糖对菌斑抑制有着相似的功效。

Influence of sugar free chewing gum on dental plaque index

Objective To investigate the influence of Maltitol chewing gum （MCG） on plaque accumulation. Methods A total of 60 subjects which aged between 25 - 50 years were enrolled in the study according to the inclusion and exclusion criteria. And they were divided into 3 groups： Maltitol chewing gum group,Xylitol chewing gum （XCG） group and Gum base （GB） group according to age and initial modified plaque index （MPI）. During the total 12 weeks＇ study,all the participants were required to chew the products under instruction ,5 times a day ,and 2 pellets/times. The dental plaque accumulation was evalnated by recording the MPI of each participant. The treatment effect,time effect,and the interaction effect of time ＊ treatment were analyzed by muhi-variate test of repetitive measure ANOVA （P 〈 0. 05 ）. Results After using these products with different formulation for 3 months,compared with the baseline, the MPI of three groups decreased significantly （P 〈 0. 01 ）. MCG group decreased by 48. 1%, XCG group decreased by 52.4% and GB group decreased by 21.6. The significant difference was found between MCG/XCG group and GB group （ P 〈 0. 01 ）, and there was no significant difference between MCG group and XCG group. Conclusions Maltitol CG and Xylitol CG may have similar effects on the improvement of oral health status.