Correlation between Changes of Periodontal Disease and Quantity of Gingival Crevicular Fluid (Part I)

Gingival Crevicular Fluid was sampled from 8 patients with the mild periodontitis. The filter paper strips (Harco Electronics Ltd, Winnipeg, Canada) were inserted in the periodontal pocket with intracrevicular method for 5min. The paper strips was quantitated by Harco-Gingival Crevicular Fluid Meter (GCFM, Harco Electronics Ltd, Winnipeg, Canada). The depth of the periodontal pocket were measured on the labial site of upper or lower incisor teeth. The degree of gingival inflammation was according to the criteria of the Gingival Inflammation by Löe and Silness (1963). The examinations were made by one of authors. The standardised oral color-photographs were taken and the variation in gingival-schrinkage was measured with Nikon Profile Projector (Model V-16C, NIPPON KOGAKU, Japan) Eight patients were treated with brushing and scaling. Each examination was performed on the first examination, 4 weeks and 8 weeks. The results obtained were as follows. 1) Gingival Crevicular Fluid was much more influenced by the degree of gingival inflammation than by pocket depth. But, variation in gingival schrinkage was not seen to influence the amount of Gingival Crevicular Fluid. 2) A new Gingival Crevicular Fluid Meter-PERIOTRON has been deviced for the measurement of gingival crevicular fluid. This newly -developed Gingival Crevicular Fluid Meter electrically could determine the amount of gingival crevicular fluid. Therefore, this is capable of accurately measuring the fluid on the paper strips. Further, this device shows to be quickly, easy, precisely, automatical digital read out and useful.