葡萄牙科学家说，他们研发出一种实验性疫苗能防止蛀牙，而它已在实验室的老鼠身上证实有效，这将有助开发防止人类龋齿的疫苗。
Portuguese scientists said they had developed an experimental vaccine against tooth decay which was successful in laboratory tests on rats and could pave the way for a version that works for humans.
目的探讨龋齿祛腐微创技术应用于对传统方法治疗龋病易造成紧张、恐惧心理患儿的有效性并提出护理要点。
Objective To discuss the effect and nursing gist of minimally invasive surgery in caries which was used on the cases who got stress and fear with traditional technology.
加强健康教育，进行预防性检查和填充治疗，对预防小学生龋齿发生非常必要。
It was necessary to strengthen health education and develop preventive treatment for the control of student's dental caries.
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