Denture adhesives, yeah THAT gooey stuff. If your lower denture is moving around too much and causing frequent sore spots, it may be time to try a denture adhesive. Years ago, the formula was changed due to problems caused by overuse. Do they work? Most of the time they last until you have a coffee or a meal, not eight hours as advertised. They are not the best solution, but in a pinch, if you are singing a love song to your spouse, maybe. Just remember to use as little as possible; it should not be a ¼ inch cushion.