Is waking up with really black teeth a sign of gum disease?think its been going on for over a year (not me) i've only just found out now.thankyou.

Possibly: But you may have other issues such as gerd and black teeth can be caused by many other factors such as tobacco usage, medications, vitamins, mouth-rinses, etc. See a dentist or oral surgeon to evalulte clinically.

Dental exam needed: Use of meth, cocaine, swishing with coke and other acidic drink will turn teeth black by causing rampant decay. Chewing betel nuts will also turn teeth black. Toxins like lead and other heavy metal can cause black lines on gums. A dental exam is needs for diagnosis and treatment.