the major problem with having "bad teeth" is that it affects your quality of life. it is difficult to chew properly and thus people who lose their teeth tend to have improper nutrition. there have been numerous papers linking periodontal disease to heart disease and low birth weight in babies. recently some even suggest that being edentulous (no teeth) is linked to a higher rate of dementia. however i have never read of any evidence linking "bad teeth" to other conditions.
what problems are caused by having bad teeth?