After self-fitting, pink upper material has fallen in-between the teeth?

If you are using your fingers to move the Nuvoflex ™ around the gum area when self-fitting, try not to push the softer material toward the biting surfaces. If this happens, use a toothpick to adjust it while the material is warm. Should material drift in between the teeth, use the toothpick to push the material back toward the harder gum layer of the denture.