歯周疾患患者における歯齦色の色彩学的研究
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Remodelled ophthalmic funds camera for human gingiva was employed to take a photograph of upper and lower anterior interdental palillaes and lower lip. The photoelectric colorimeter was used to estimate the light extinction of the developed reversal color film. In this study R value (the light extinction of gingival color to lower lip color) and visual color matching were applied to estimate the gingival color. The purposes of this investigation were to compare the gingival colors of normals and periodontal patients and to study the gingival color changes following periodontal treatments. The results were as follows 1 In non mottled gingiva statistically significant higher R values were observed in periodontal patients than the normals. By visual color matching the hue of the gingival colors in periodontal patients inclined to the direction of RP, the value was lower than that of healthy gingiva, and the chroma was higher than that of healthy gingiva. In melanin pigmented gingiva, little difference was observed in R value. The hue of gingival colors in periodontal patients distributed in the direction of RP than that of healthy gingiva. Little difference, however, was observed in value and chroma. 2 The close relationship was observed in the gingival color estimations between by absorptimeter and by visual color matching in normals and periodontal patients, even in gingival color estimations following periodontal treatments. 3 Following scaling significant R value reduction was observed in 1 week, while after 6 weeks treated gingival color showed healthy. By visual color matching, gingival color following scaling seemed to be healthy after 6 weeks. 4 Following subgingival curettage significant R value reduction was observed from 1 to 2 weeks, while after 6 weeks treated gingival color showed healthy. By visual color matching, gingival color following subgingival curettage seemed to be healthy after 6 weeks. 5 Significant R value reduction was observed from 2 to 4 weeks following gingivectomy while after 9 weeks little reduction was observed. After 12 weeks, R value showed a little higher than that of normal gingiva. By visual color matching it was demonstrated that after 12 weeks following gingivectomy hue was distributed slightly in direction of RP, value and chroma seemed to be normal. 6 Significant R value reduction was observed from 2 to 4 weeks following flap operation, while after 9 weeks little changes was observed and after 12 weeks R value was a little lower than that of normal gingiva. By visual color matching, it was shown that after 12 weeks following flap operation hue seemed to be normal, and value was higher and chroma was lower than that of normal gingiva. 7 The gingival color changes following subgingival curettage and flap operation were similar except that the gingiva treated by flap operation takes 7 to 10 days longer to the healthy gingival color than by subgingival curettage.
- 1978-12-28
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