Rubber dam: Helps prevent entry of humidity to a cavity, In particular prior to insertion of silicate fillings, And through root canal therapy. Social backlinks twitter : Facebook: Instagram: Tiktok : tiktok.com/@mkdentist05 Disclaimer :This channel does not encourages or encourages any illegal functions and all information provided by this channel https://telegra.ph/Sannhakhoa-d%E1%BB%A5ng-c%E1%BB%A5-nha-khoa--Top-Quality-Dental-Solutions-03-28