gingivitis,morbidity

over 90% of the world population have chronic gingivitis to some
口腔:牙龈炎:gingivitis牙龈出血:bleading gums牙痛:toothache口腔
gum disease, receding gums, gum inflammation (gingivitis)
home remedies for gingivitis
口 腔 问 题 牙龈出血(bleading gums),牙龈炎(gingivitis), 牙痛