Have you noticed sore spots under or a loose feeling to your removable partial? When a partial denture is made it clasps around your teeth and also rests on the gums. Over time the gum areas recede and a gap forms under the partial. With the teeth acting as a fulcrum the partial will often start to rock during chewing. The bite can begin to feel uneven and chewing become less effective.
Often the solution to a loose or rocking partial denture is to reline the acrylic portion of the partial to fill the gap that has developed between the partial and the receding gums. This routine maintenance process, in most cases, need to be done about every 3-5 years.