积极呵护牙龈和牙齿，愿大家一直拥有健康的笑容！

编辑：张欣

排版：吴泽仪

图源：网络

参考资料

1.孟焕新.牙周病学（第5版）[M].北京：人民卫生出版社

2.Receding Gums https://www.webmd.com/oral-health/guide/receding_gums_causes-treatments

3.Jati, Ana Suzy et al. “Gingival recession: its causes and types, and the importance of orthodontic treatment.” Dental press journal of orthodontics vol. 21,3 (2016): 18-29. doi:10.1590/2177-6709.21.3.018-029.oin

4.Teeth and Gum Care https://www.webmd.com/oral-health/guide/teeth-gum-care