Had dentist that performed work 7years ago I complained and over a period dentist did 4route canals and always gave a different reason for discomfort instead of fixing the problem... took me some time but after more pain and poor work I finiallly fired him and went on another mission of finding yet another dentist... took about a year and to what I thought was a good thing was a major mistake I got serviced by yet another dentist... this dentist needs to go back to school... but what do I do now his work keeps falling apart,, he is very ruff and on my last visit abusive... I am scare of dentists as it is... time and money... and work that still needs to be taken care of... please help

Try a dental school... the students will be slower, but they will do solid, dependable treatment, it will be cheaper, checked over by a professor (who are very picky) and very gentle!

Yep... work done in dental school is the best you will get. The students need to do a number of each kind of treatment and don't get a passing grade until it is done right. It's once they get out they slack off.