Whats the Halacha if a woman went to the Mikva and then the next morning realized that she forgot to floss her teeth before Toveling?
If no Chatzitzah was found in the teeth, Bedieved the Tevila is valid.
Note, one must not Davka floss. Any method of checking and cleaning the teeth is fine. Obviously from a practical point flossing is preferable.
.ראה שו״ע יו״ד קצח, כד- כה ובנו״כ