Peng Bin, Petersen Poul Erik, Bian Zhuan, Tai Baojun, Jiang Han
Department of Preventive Dentistry, School of Stomatology, Wuhan University, China.
Acta Odontol Scand. 2004 Dec;62(6):328-32. doi: 10.1080/00016350410010036.
The purpose of the study was to assess the outcome of school-based oral health education (OHE) and a sugar-free chewing gum program on the oral health status of children in terms of reduced caries increment and gingival bleeding over a period of 2 years. Nine primary schools randomly chosen from one district were divided into three groups: OHE group (Group E), sugar-free chewing gum in addition to OHE group (Group G), and the control group (Group C). All children of grade 1 (aged 6-7 years) were recruited (n = 1342). After 2 years, 1143 children remained in the study group at follow-up. The overall drop-out rate was about 15%. Data on dental caries and gingival bleeding were collected by clinical examination. The results showed that the mean increment of DMFS in Group G was 42% lower than in groups E and C (P < 0.05). The mean increments in F-S were higher in Groups G and E than in Group C (P < 0.01). The gingival bleeding scores were statistically significant among the three groups. Compared to Group C, the mean increment in bleeding scores of Group G was 71% lower (P < 0.01) and in Group E 42% lower (P < 0.05). The school-based OHE programs had some positive effect improving children's oral hygiene; in certain circumstances children may benefit from using polyol-containing chewing gum in terms of reduced dental caries.
该研究的目的是评估为期两年的学校口腔健康教育（OHE）和无糖口香糖项目对儿童口腔健康状况的影响，具体指标为龋齿增量减少和牙龈出血情况。从一个区随机选取的9所小学被分为三组：口腔健康教育组（E组）、除口腔健康教育外还使用无糖口香糖的组（G组）和对照组（C组）。招募了所有一年级（6至7岁）的儿童（n = 1342）。两年后，1143名儿童留在研究组接受随访。总体辍学率约为15%。通过临床检查收集龋齿和牙龈出血的数据。结果显示，G组的DMFS平均增量比E组和C组低42%（P < 0.05）。G组和E组的F-S平均增量高于C组（P < 0.01）。三组之间牙龈出血评分具有统计学意义。与C组相比，G组出血评分的平均增量低71%（P < 0.01），E组低42%（P < 0.05）。基于学校的口腔健康教育项目在改善儿童口腔卫生方面有一定积极作用；在某些情况下，儿童使用含多元醇的口香糖可能有助于减少龋齿。
