自来水和矿泉水对碳酸饮料脱矿后的年轻牙釉质的再矿化作用

发布时间：2019-03-12 10:36

【摘要】：目的:探讨矿泉水和自来水能否对碳酸饮料脱矿后的青少年牙釉质发生再矿化作用,及两者再矿化作用程度的比较。方法:选取口腔科因正畸需要拔除的青少年前磨牙9颗,每颗牙齿沿牙体长轴分为颊舌两部分,制备成18个釉质块,随机分为A、B、C 3组,每组6块,标本经碳酸饮料浸泡1周后,A组随机选取2个标本在电镜(SEM)下行形貌观察,其余标本用能谱(EDX)检测矿物质的相对含量[即Ca(钙)、P(磷)元素的相对含量];B组标本用大量矿泉水超声震荡清洗后,浸泡于矿泉水中1周,然后随机选取2个标本于SEM下行形貌观察,其余标本行用EDX检测矿物质的相对含量;C组标本用大量自来水超声震荡清洗后,浸泡于自来水中1周,然后随机选取2个标本于SEM下进行形貌观察,其余标本用EDX检测矿物质的相对含量。结果:SEM显示A组标本呈蜂窝状脱矿,B、C两组标本蜂窝状孔隙中均有不规则沉积物,B组沉积物更为致密;EDX显示矿物质相对含量:B组A组(P0.05),C组A组(P0.05),B组和C组间差异无统计学意义。结论:矿泉水和自来水均能对碳酸饮料脱矿后的牙釉质进行再矿化,且再矿化程度相当。
[Abstract]:Objective: To study the effect of mineral water and tap water on the remineralization of dental enamel after demineralization of carbonated beverage, and to compare the degree of re-mineralization. Methods:9 young premolars extracted by orthodontics were selected, each tooth was divided into two parts of the buccal tongue along the length axis of the tooth. The 18 enamel blocks were randomly divided into groups A, B and C,6 pieces in each group, and the specimens were soaked in a carbonated beverage for 1 week. The relative content of mineral matter[that is, the relative content of Ca (Ca), P (P) element] was detected by the energy spectrum (EDX) in group A. The relative contents of Ca (Ca) and P (P) elements were detected by the energy spectrum (EDX) of the remaining specimens. soaking in mineral water for 1 week, and randomly selecting two specimens to be observed by the SEM, and the relative content of the minerals is detected by the EDX in the remaining sample lines; and after the sample is washed with a large amount of tap water in a large amount of tap water, the sample is soaked in the tap water for 1 week, Then two specimens were randomly selected for morphology observation under the SEM, and the relative contents of the minerals were detected by EDX in the remaining specimens. Results: SEM showed that in group A, there were irregular deposits in the honeycomb pores of group B and C, and the deposit of B group was more compact; and the relative content of the contents of EDX in group B: group A (P0.05) and group C (P0.05). There was no statistical difference between group B and group C. Conclusion: Mineral water and tap water can be re-mineralized after demineralization of carbonated beverage, and the degree of re-mineralization is comparable.
【作者单位】：遵义医药高等专科学校;武汉大学中南医院口腔医学中心;
【基金】：湖北省计划生育委员会科研基金项目(编号:303131980)
【分类号】：R781

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