Dentists actually do have a high rate of drug an alcohol use...which in turn COULD BE translated to overdose, poisoning, suicide or death!!
here's an article from the CDA:
http://www.cda.org/cda_member/pubs/journal/jour1098/drugs.html
AN EVEN STRONGER CASE CAN BE FOUND HERE:
an article from webmd's emedicine that provides you with the professions with high suicide rates...
http://www.emedicine.com/med/topic3004.htm
Professions and occupations
* Police or public safety officers are at risk for suicide. The hours of work, the scenes they witness daily, the availability of guns, and the silence encouraged by the profession (keeping within the wall-of-blue), as well as alcohol usage and divorces contribute to this risk.
* Physicians, especially those who deal with progressively terminally ill patients, have a high rate of suicide. In the United States, the medical field loses the equivalent of a medical school class each year by suicide.
* Dentists have a high suicide rate. Perhaps, elements of obsessive and perfectionist tendencies combined with personal feelings of isolation may contribute to this high number of self-induced deaths.
HAHA...ITS OK, don't worry guys, I'M GOING TO DENTAL SCHOOL TOO!!!