世界卫生组织总干事中岛宏博士关于１９９４年世界卫生日的文告由于强调适度使用氟化物，保持口腔卫生，采取健康的饮食习惯等预防计划，很多发达国家的口腔卫生已经取得显著的发展。然而，在很多发展中国家的情况开始恶化，口腔疾病在增加，而医疗费用也在不断上升。口腔... Dr. Hiroshi Nakaima, Director-General of World Health Organization, on World Health Day 1994 As a result of stress prevention programs such as the moderate use of fluoride, oral hygiene and healthy eating habits, oral hygiene in many developed countries has made remarkable progress. However, the situation in many developing countries has started to deteriorate, with the increase of dental diseases and the rising cost of medical care. Mouth ...