Periodontal Disease: It means you have unhealthy gums. See your dentist.
Answered 9/16/2013
4.9k views
Multiple reasons: Could be due to buildup of bacteria in form of plaqueor calculus, infection due to a problem with the tooth itself or even trauma or external stimulus. See a qualified dentist to evaluate.
Answered 2/1/2018
4.9k views
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