The following individual came in because her top denture was not fitting properly. The denture was getting loose and not staying in place anymore, but was not causing any pain. Upon examination, it was revealed the loose denture had been digging into the soft tissue resulting in an ulcer (white part in the center) with overgrown tissue along its border (bulge between white spot and mirror). At this stage, the treatment required was a denture adjustment, and the fabrication of a new denture once the area healed (roughly 2 months). Fortunately, this case was caught early enough that adjusting the denture allowed healing to occur. If this was allowed to progress, this could have required corrective surgery as well.
In some cases, sores like this could be cancerous. One of the main ways of differentiating between cancer and a denture sore is the rate of growth and response to denture adjustments. Oral cancer is generally very aggressive and fast-growing and will not respond to adjustments in the denture. Denture sores, on the other hand, will have a trigger spot from the denture and develop to this size much more slowly. With regular checkups, the rate of growth can be determined to help aid in diagnosis and appropriate treatment, a delay in treatment of oral cancer can often have disastrous results.