窝沟封闭项目成本──效果影响因素浅析广东省口腔医院（邮５１０２６０）黄少宏龋齿是世界上最广泛流行的疾病。世界卫生组织推荐的龋齿预防保健措施中，窝沟封闭项目被列为仅次于氟化物项目的主要方法，封闭剂的应用使龋齿降低率在６０～９９％，作为预防项目窝沟封闭正... Pit and fissure sealing project costs ─ ─ Analysis of the impact of factors Guangdong Provincial Hospital (Post 510260) Huang Shaohong dental caries is the world's most widespread disease. In the prevention and treatment of caries prophylaxis proposed by the World Health Organization, the pit and fissure sealant project was listed as the main method next to the fluoride project. The application of sealant reduced the rate of decayed caries by 60-99%. As a preventive project, pit and fissure occlusion was positive. ..