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目的探讨儿童龋齿与口腔幽门螺杆菌(HP)感染的相关性。方法选择200例3~6岁儿童进行研究。观察龋齿发生情况,测量牙菌斑指数和口腔HP感染情况。结果 200例儿童中,97例儿童患龋齿,龋齿患病率为48.5%;117例儿童口腔HP阳性,口腔HP阳性率为58.5%。男女龋齿患病率、口腔HP阳性率比较,差异均无统计学意义(χ~2=0.000、0.205,P=0.983、0.651)。不同年龄儿童口腔HP阳性率比较,差异无统计学意义(χ~2=3.161,P=0.367)。龋齿儿童口腔HP阳性率高于无龋齿儿童(χ~2=21.787,P<0.05)。轻、中、重度龋齿儿童口腔HP阳性率比较,差异有统计学意义(χ~2=13.158,P<0.05)。口腔HP阳性儿童牙菌斑指数高于阴性儿童牙菌斑指数,两者比较,差异有统计学意义(Z=3.012,P<0.05)。结论儿童龋齿和口腔HP关系密切,口腔HP感染和龋齿严重程度及牙菌斑指数有关。
Objective To investigate the correlation between dental caries and Helicobacter pylori (HP) infection in children. Methods 200 cases of children aged 3 to 6 years were selected for study. The occurrence of dental caries was observed, and the plaque index and oral HP infection were measured. Results Of the 200 children, 97 children had dental caries, the prevalence of dental caries was 48.5%. The positive rate of oral HP in 117 children was 58.5%. There was no significant difference in the prevalence of dental caries between men and women and the positive rate of oral HP (χ ~ 2 = 0.000,0.205, P = 0.983,0.651). There was no significant difference in the positive rate of oral HP between children of different ages (χ ~ 2 = 3.161, P = 0.367). Positive rate of oral HP in children with dental caries was higher than that in children without caries (χ ~ 2 = 21.787, P <0.05). The positive rates of oral HP in children with mild, moderate and severe dental caries were significantly different (χ ~ 2 = 13.158, P <0.05). The oral plaque index of oral HP positive children was higher than that of negative children, the difference was statistically significant (Z = 3.012, P <0.05). Conclusion There is close relationship between dental caries and oral HP in children. The oral HP infection is related to the severity of dental caries and the plaque index.