碳酸饮料对青少年恒牙釉质脱矿作用的体外实验研究

The experiment study of demineralization on the surface of the young permanent teech enamel by carbonated beverage

目的:通过扫描电镜对经碳酸饮料处理过的离体年轻恒牙釉质的观察,研究碳酸饮料对青少年恒牙的脱矿作用。方法:收集新近因正畸减数拔除的年轻恒上颌第一前磨牙20颗,随机分为A组、B组(每组10颗牙),A组牙齿置入碳酸饮料(可口可乐)中,放入37℃恒温箱中1个月,并定期加以摇动,后应用扫描电镜(SEM)观察牙齿牙釉质表面的形态学变化;B组牙齿用蒸馏水洗净后,即刻应用扫描电镜(SEM)观察牙齿牙釉质表面的形态。结果:A组的牙釉质表面松软、极为粗糙,多孔隙,呈蜂窝状脱矿;B组牙釉质表面致密平坦,均匀而平滑,偶见表浅划痕。结论:碳酸饮料会导致牙釉质脱矿,青少年过多饮用碳酸饮料会对牙齿造成损害。

Objective： To explore the enamel demineralization by carbonated beverage from the teeth which soaked in the carbonated beverage. Method： 20 teeth of the young permanent first premolar of maxillary were collected from orthodon- tic extraction, which of 20 teeth were randomly divided into group A,groupB. The teeth of groop A were placed into the car- bonated beverage, which be put in the 37℃ incubator for a month, and periodically shake, the teeth of group B were cleaned with distilled water, and then the application of scanning electron microscope （SEM） in each group to observe the morpholo- gy of the enamel surface. Result：The surface of the enamel of groop A was loose,soft,very rough, the surface was alveolate; The surface of the enamel of groop B was relatively flat,dense,uniform and smooth. Conclusion：The enamel demineralization can be caused by carbonated beverage： and the adolescent drink too much carbonated beverage will lead the tooth damage.