School-based education to improve oral cleanliness and gingival health in adolescents in Tehran, Iran
School-based education to improve oral cleanliness and gingival health in adolescents in Tehran, Iran
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DOI：
10.1111/j.1365-263x.2009.00972.x
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发表时间：
2009-07-01
影响因子：
3.8
通讯作者：
Murtomaa, Heikki
中科院分区：
文献类型：
--
作者：
Yazdani, Reza;Vehkalahti, Miira M.;Murtomaa, Heikki
背景学校可以成为健康教育方案的重要场所，控制日益增长的口腔疾病负担，促进口腔健康。本研究的目的是评估学校教育干预对伊朗德黑兰15岁青少年口腔清洁和牙龈健康的短期影响。目前的整群随机试验的基础上暴露学生（n = 287;对照组，n = 130）在公立学校的口腔健康知识，通过传单或录像带。12周后评估结果。阳性结果定义为与基线相比，牙菌斑或牙龈出血的牙齿数量至少减少50%。评估包括百分比变化，需要治疗的人数（NNT），和学生的自我评估。在基线时，所有学生都有牙菌斑，93%的学生至少有一颗索引牙牙龈出血。口腔清洁的阳性结果是传单组的58%（P < 0.001），录像组的37%（P < 0.001），对照组的10%。牙龈健康的相应数字分别为72%（P < 0.001）、64%（P < 0.001）和30%。对于口腔清洁度，宣传单组的NNT为2，录像带组为3;对于牙龈出血，两组的NNT均为3。超过三分之二的学生认为他们的口腔健康行为有了适度的改善。一个易于组织和廉价的学校为基础的干预措施，可以在短期内有效地改善口腔清洁和牙龈健康的青少年;特别是在发展中国家的口腔卫生系统。
Background. Schools can be an important setting for health education programmes, controlling the growing burden of oral diseases and promoting oral health.Aim. The aim of this study was to evaluate the short-term effect of school-based educational intervention on oral cleanliness and gingival health of 15-year-olds in Tehran, Iran.Design. The present cluster randomized trial was based on exposing students (n = 287; control, n = 130) at public schools to oral health knowledge through a leaflet or a videotape. The outcome was evaluated after 12 weeks. A positive outcome was defined as at minimum a 50% reduction in numbers of teeth with dental plaque or gingival bleeding compared to baseline. Evaluation included percentage changes, number needed to treat (NNT), and students' self-assessment.Results. At baseline, all students had dental plaque, and 93% had gingival bleeding on at least one index tooth. Positive outcome for oral cleanliness was 58% (P < 0.001) of the students in the leaflet group, 37% (P < 0.001) in the videotape group, and 10% of controls. Corresponding figures for gingival health were 72% (P < 0.001), 64% (P < 0.001), and 30%. For oral cleanliness, NNT was 2 in the leaflet and 3 in the videotape group; for gingival bleeding, NNT in both groups was 3. More than two-thirds of the students assessed their oral health behaviours as having improved moderately.Conclusion. An easy-to-organize and inexpensive school-based intervention can in the short term be effective in improving oral cleanliness and gingival health among adolescents; in particular, in countries with a developing oral health system.