Methods The gingivitisindex (G1) was recorded and the cr evicular fluids were cultured in anaerobic condition.
方法记录牙龈指数并采集龈沟液进行厌氧菌培养。
2
Objective To explore the changes of gingivitisindex and bacteria in crevicular fluid during orthodontic treatment.
目的探讨正畸治疗中牙龈指数及龈沟液细菌的变化。
3
Results The plaque index and gingival index of experiment group had decreased obviously, which effective rate in treatment of gingivitis was higher than that of placebo group.