Your dental insurance carrier should never have given information to a third person concerning you without express written authorization signed by you with respect to your insurance policy with the exception of your employer assuming your dental insurance policy is a work related benefit.If your dental insurance carrier provided information about you without authorization, I would contact some representative with your insurance carrier and discuss your displeasure over what happened in order to prevent a recurrence. You might also discuss the situation with your state's department of insurance. Your dispute is more of a governmental adminsitrative issue concerning a consumer complaint as opposed to a legal action.