A toothache is a warning that you have a serious dental issue.  There is no other pain that can be so painful and telling then a severe tooth ache.   Your teeth need to be one of the top most priority because if your teeth are in bad shape it can be a very health detriment .  It is so close to sinus and head and heart that and infection can spread rapidly in the body without knowing that you could have stop it with a check up and regular cleaning to prevent problems.  TMJ can also be a problem unknown without going to the dentist and avoid headaches and a locked jaw and breaking down of your teeth because of a poor bite.  http://www.huffingtonpost.com/david-jensen/hiring-guru-luke-weil-put_b_7195648.html is a link to pain killers.