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目的:研究固定正畸矫治器治疗6个月和12个月时牙釉质龋白斑的患病率,为有效控制牙釉质的早期脱矿提供依据。方法:将114名进行固定正畸矫治病例分为三组:6月组、12月组和空白对照组,检查各组患者靠近托槽龈方牙面的牙釉质龋白斑患病率和龋白斑指数。对各组间牙釉质龋白斑患病率和龋白斑指数进行单因素方差分析,Logistic回归分析检验治疗时间和性别对牙釉质龋白斑患病率的多重影响。结果:76%的男性患者和24%的女性患者出现了牙釉质龋白斑,其患病率的差异具有统计学意义(P<0.05);6月组和12月组间患病率的差异无统计学意义(P>0.05),但与对照组间的差异均具有统计学意义(P<0.05)。结论:患者行固定矫治器治疗时牙釉质龋白斑的患病率在最初6个月时急剧上升,因此,临床医生应注意在患者进行固定矫治器治疗的最初数月应密切关注其口腔卫生状况,必要时应采取措施防止牙釉质的脱矿。
Objective: To study the prevalence of enamel caries white spots at 6 months and 12 months in fixed orthodontic appliances, and to provide evidence for effective control of early demineralization of enamel. Methods: 114 cases of orthodontic treatment were divided into three groups: the June group, the December group and the blank control group. The prevalence of leucoderma enalei and caries leucoplama near the gingival surface of the bracket in each group were examined. index. Single factor analysis of variance (ANOVA) was used to analyze the prevalence of leukoplakia and caries leukoplakia in each group. Logistic regression analysis was used to examine the multiple effects of treatment time and gender on the prevalence of enamel caries. Results: There were statistically significant differences in the prevalence of enamel caries in 76% of males and 24% of females (P <0.05). There was no significant difference in the prevalence between June and December Statistical significance (P> 0.05), but with the control group differences were statistically significant (P <0.05). CONCLUSIONS: The prevalence of enamel caries in patients undergoing fixed appliances has risen sharply in the first 6 months, so clinicians should be mindful that their oral health should be closely monitored during the first few months of treatment with a fixed appliance , If necessary, measures should be taken to prevent demineralization of enamel.