Calderone J J, Davis J M
J Public Health Dent. 1987 Summer;47(3):145-9. doi: 10.1111/j.1752-7325.1987.tb01993.x.
In 1979, the dental health program of the New Mexico Health and Environment Department began a school-based sealant activity. Children in the first, second, third, sixth, and seventh grades in selected New Mexico communities were offered sealants through this sealant activity. During the 1984-85 school year, program staff began seeing several hundred sixth-grade students who had received sealants in either the first, second, or third grade. Tooth- and surface-specific data on the current condition of all the previously sealed occlusal surfaces were collected from all these previous recipients of sealants. During the 1985-86 school year, we found that sixth-grade students who received sealants as first, second, or third graders had 5.6 percent of the occlusal surfaces of their first permanent molars either decayed, missing, or filled. Their classmates who had not previously received sealants had 26.85 percent of the same tooth surfaces either decayed, missing, or filled. During the 1985-86 school year, the complete retention rates for sealants were found to be 67.36 percent after six years, 78.53 percent after five years, and 93.47 percent after one year. The partial retention rates were found to be 10.46 percent after six years, 10.63 percent after five years, and 3.04 percent after one year.
1979年，新墨西哥州卫生与环境部的牙齿健康项目启动了一项以学校为基础的窝沟封闭活动。通过该活动，新墨西哥州部分社区的一、二、三、六和七年级学生可以接受窝沟封闭。在1984 - 1985学年，项目工作人员开始观察数百名在一、二或三年级时接受过窝沟封闭的六年级学生。从所有这些之前接受过窝沟封闭的学生那里收集了所有先前封闭的咬合面当前状况的牙齿和表面特定数据。在1985 - 1986学年，我们发现，在一、二或三年级时接受过窝沟封闭的六年级学生，其第一恒磨牙的咬合面有5.6%出现了龋坏、缺失或已填充的情况。他们那些之前未接受过窝沟封闭的同学，相同牙齿表面出现龋坏、缺失或已填充情况的比例为26.85%。在1985 - 1986学年，发现窝沟封闭剂的完全保留率在6年后为67.36%，5年后为78.53%，1年后为93.47%。部分保留率在6年后为10.46%，5年后为10.63%，1年后为3.04%。
