抄録
Various changes manifested in the oral tissues attendant upon upon the menstrual cycle of women early attracted the scholarly attention and many studies dealing with them have been known. Of them, researches particularly connected with the menstrual gingivitis as manifested in the gingivae are published from time to time. However, their study from a Colometric point of view is yet to come.
With a sample of 51 women, the author studied the gingivae, palates and lips on a chronological basis in the light of colometry for the purpose of analyzing changes in the gingival coloration in the menstrual and non-menstrual cycles comparatively. The following were salient conclusions obtained as the result of the present study.
1. As the result of preliminary tests, measurements of hue, value and chroma at 2 hours 30 minutes after breakfast and at 3 hours after lunch were found to be in agreement with one another except for a few exceptions. Therefore, the gingival coloration at these times may be taken as indicative of the normal one.
2. In common with the menstrual and non-menstrual cycles, the redness of oral membranes was, determined to be in order of the alveolar mucous membrane, interdental papillae, marginal gingivae, lips and palates. On the other hand, the brightness was in order of the lips, marginal gingivae, alveolar mucous membrane, interdental papillae and palates.
The so-called “Richness of color”, however, was found to be in order of the alveolar mucous membrane, interdental papillae, marginal gingivas, lips and palates in the mensirual women. On the other hand, in the non-menstrual women the order was from the interdental papillae, alveolar mucous membrane, marginal gingivae, lips and palates.
3. Respective measurements of hue, value and chroma revealed definite differences between the menstrual and non-menstrual cycles in terms of the interdental papillae, marginal gingivae, alveolar mucous membrane and palates. But almost no change was observed with the lips. These changes, however, were found with a significant difference in the alveolar mucous membrane alone. That is to say, as compared with the alveolar mucous membrane in nonmenstrual cycle the redness and richness of color increased in the same locality in menstrual cycle, with a pronounced decrease of the brightness. With other membranes, definite changes were not appreciably measured.
