Frenum swelling from: Most likely an irritation from eating something hard or accidental abrasion from tooth brushing. Another possibility is a canker sore. All of those things will resolve on their own without treatment. However, it could also be from a gum or tooth infection and therefore it would be best to have your own dentist take a look asap.
Answered 8/30/2018
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A doctor has provided 1 answer
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