????: Not sure what you mean by tighten around the gum line. However flossing removes food around the teeth making the gums healthier and the gum pockets will be less deep or tighter.
Answered 11/19/2017
5.5k views
It can help: Flossing together with good oral hygiene will cause inflammed gingiva to heal.
Answered 10/18/2016
5.4k views
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