There have been suits brought in the past by inmates regarding what they believed to be a certain lack of medical attention and care which they believed was tantamount to cruel and unusual punishment.  It did not always fly.  But it is my understanding that inmates are entitled to medical and dental care while in prison and although I do not know what the standard of care is in determining the issues involved here, I am fairly sure that negligence in caring for an inmate is not not tolerated just because of the incarceration.  It is true that certain Constitutional rights are curtailed while in prison but this is not in this category. I would speak with a local personal injury attorney on the matter but you will need documentation as to all that you have alleged here.