If the dentures no longer fit as well as they once did, you may need to have a procedure done to refit the base of the denture, called a “reline”. Check with your prosthodontist to see if your dentures can be relined. It is best not to reline your dentures with over-the-counter reline kits. This procedure, which can be done by your prosthodontist, will enable your dentures to have a tighter, better fit.