不同饮料对不同龋敏感儿童牙菌斑pH值的影响

华西口腔医学杂志

不同饮料对不同龋敏感儿童牙菌斑pH值的影响

刘源1 , 邹静2, 尚冉1

1.口腔生物医学工程教育部重点实验室，四川大学；2.四川大学华西口腔医院儿童牙科，四川　成都　610041

收稿日期:2006-10-25 修回日期:2006-10-25 出版日期:2006-10-20 发布日期:2006-10-20
通讯作者: 邹静，Tel：028－85503527
作者简介:刘源（1979-），女，陕西人，博士研究生

Effects of Different Beverages on Plaque pH of Different Caries-sensitive Children

LIU Yuan1, ZOU Jing2, SHANG Ran1

1. Key. Laboratory of Oral Biomedical Engineering Ministry of Education, Sichuan University, Chengdu 610041, China; 2 . Dept. of Pediatric Dentistry, West China College of Stomatology, Sichuan University, Chengdu 610041, China

Received:2006-10-25 Revised:2006-10-25 Online:2006-10-20 Published:2006-10-20

摘要/Abstract

摘要：

目的比较不同种类的饮料对龋敏感儿童及无龋儿童牙菌斑pH值的影响。方法采用微型蜂式pH指示电极原位测试儿童牙菌斑pH值。选择四川省成都市幼儿园3～5岁无龋儿童10名和龋敏感儿童10名作为研究对象，观察其饮用可口可乐、统一鲜橙多及乐百氏AD钙奶饮料后牙菌斑pH值的动态变化。结果无龋和龋敏感组儿童牙菌斑的静止pH值有统计学差异（P<0.05）。饮用饮料后，各组牙菌斑pH值均下降，约5～10 min后达到最低值。无龋组儿童饮用3种饮料后pH最小值（pHmin）和pH下降幅度（△pH）均无统计学差异（P>0.05）；龋敏感组儿童饮用3种饮料后pHmin、△pH则有统计学差异（P<0.05）。结论龋敏感儿童的牙菌斑产酸力较无龋儿童高。不同饮料对牙菌斑pH值的改变不同，其潜在的致龋能力存在差异。

关键词: 牙菌斑, 饮料, pH值测定, 龋病

Abstract:

Objective To compare the impacts of different beverages on plaque pH of caries-sensitive and caries-free children and to evaluate the applicability of in situ pH measurements in human dental plaque using Beetrode microelectrode. Methods The subjective population consisted of 20 children（aged 3-5 years）. Ten of them were caries-free（dmft=0）; the other were caries-active（dmft>4）. The dental plaque pH were measured in situ with a pH microelectrode within 1 h after drinking three different beverages respectively. Then the resting pH value（pHrest）, minimum pH value（pHmin）, the range of the pH（△pH） was analyzed by ANOVA. Results There was a significant difference in pHrest between caries-free and caries-sensitive children. All the pH responses in the plaque following drinking three different beverages showed a classic Stephan-type response. The differences of the pHmin, △pH in sound sites were no statistic significance（P>0.05） after drinking beverages in caries-free children. However the changes in the caries-sensitive group were more pronounced than the non-caries group. There were significant differences on the pHmin, △pH among different beverages（P<0.05）. Conclusion The cariogenicity of plaque in caries-active children was stronger than that of the caries-free group. Different beverages have different potential cariogenicity.

Key words: dental plaque, beverage, pH measurement, caries

刘源;邹静;尚冉. 不同饮料对不同龋敏感儿童牙菌斑pH值的影响[J]. 华西口腔医学杂志.

LIU Yuan1, ZOU Jing2, SHANG Ran1. Effects of Different Beverages on Plaque pH of Different Caries-sensitive Children[J]. West China Journal of Stomatology.

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