gingival marginal atrophy
英
美
网络 龈缘萎缩
双语例句
- METHODS: Four hundred and eighteen aged patients with gingival marginal atrophy and root surface exposure were enrolled in this study. The patients were randomized into NaF, LaCl_3, NaF+ LaCl_3 rinse solution group and control rinse solution group.
方法：选择60~84岁有牙龈萎缩、根面暴露的418名老年人，随机分为NaF组、LaCl3组、NaF+LaCl3组和对照组。