An Observation of Decubital Ulcer on Buccal Mucosa: Change of Glycosaminoglycans

This study has been performed to observe macroscopic, histological and histochemical changes in the decubital ulcer that was formed experimentally by the 5mm length and 1mm diameter wire cemented on the buccal surface of upper first molar. The tissue destruction was progressed from the surface of the decubital ulcer by mechanical stimuli, and the tissue restoration advansed from the circumference of the ulcer. At the bottom of the decubital ulcer the tissue destruction and restoration was repeated mutually. The location and molecular kinds of glycosaminoglycans also changed with these changes.