Gum Material for Relining Dentures. This gum material is used to shape and reline your dentures for a better fit. It softens when heated and hardens when cooled. If you do not get the exact fit you want the first time, just simply reheat, as it will soften, and try again. You can redo this process as many times as you like until you get the perfect fit. It is enough gum relining material to redo a full upper and lower denture.
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