Yep, you can die from bad teeth. It usually send infection to the brain. In the olden days it happened a lot. The article is lengthy I only posted the beginning.
http://abcnews.go.com/Health/insurance-24-year-dies-toothache/story?id=14438171
By CARRIE GANN, ABC News Medical Unit
Sept. 2, 2011
A 24-year-old Cincinnati father died from a tooth infection this week because he couldn't afford his medication, offering a sobering reminder of the importance of oral health and the number of people without access to dental or health care.
According to
NBC affiliate WLWT, Kyle Willis' wisdom tooth started hurting two weeks ago. When dentists told him it needed to be pulled, he decided to forgo the procedure, because he was unemployed and had no health insurance.
When his face started swelling and his head began to ache, Willis went to the emergency room, where he received prescriptions for antibiotics and pain medications. Willis couldn't afford both, so he chose the pain medications.
The tooth infection spread, causing his brain to swell. He died Tuesday.