The detection rates of gingival bleeding, dental calculus, periodontal pocket and periodontal attachment loss were 93.
牙龈出血、牙石、牙周袋、牙周附着丧失的检出率分别为93。
2
Objective:To observe the effects of nicotine and smokeless tobacco extract (ST)on growth and attachment of human gingival fibroblast.
目的：体外观察尼古丁和烟草浸提液（ST）对人牙龈成纤维细胞的生长和贴附影响。
3
Conclusions Waterlase can achieve stability of gingival margin and gain normal periodontal attachment faster in crown lengthening surgery in aesthetic area.