I am legally seperated 5 years at this stage and am thinking of proceeding to a divorce. I pay substantial maintenance for my children. My ex is trying to get me to agree to pay half of all future medical & dental expenses and wants this added to the existing seperation terms as part of the divorce, and feels this should have been in the original seperation agreement. My question is - is it "normal" or at least commonplace in seperation or divorces to have explicit provisions for sharing of childrens medical and dental expenses ? Thank you in advance