抄録
The gingival tissue fluid was collected from 80 clinically healthy gingival sulci of out-patients. The fluid flow was measured by weighing and determining the amount of ninhydrin positive substance in each sulcus. In 44 clinically healthy cases, the step progress was studied before and after the insertion of prosthetic appliance. Moreover, 20 cases with ill fitting crowns were selected and the exudate from such cases was compared with the result obtained in clinically healthy cases. As the result, the crevicular tissue fluid flow was found in every cases and a significant correlation between the fluid weight and the amount of ninhydrin positive substance existed in these cases. This correlation in the gingival fluid was also established in cases after giving prosthetic appliances. The influence of prosthetic appliances upon the crevicular tissue fluid was observed as the increasing of the fluid weight and the amount of ninhydrin positive substance, in post crown cases and in ill fitting crown cases. However, the change of gingival fluid in the early stage after the insertion of prosthetic appliances could be found in neither the fluid weight nor the amount of ninhydrin positive substance, because of relatively wider range of variation, and it could be observed as a significant difference of correlation coefficient between the fluid weight and the amount of ninhydrin positive substance, among the clinically healthy gingivae, cases at 7-10 days after insertion, cases at 30 days after insertion and cases with poorly fitted crowns.
