温熱刺激に対する歯肉の微細血管形態と血流量に関する実験的研究
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In relation to clinical and histological findings of gingiva, local microcirculatory system of hamster gingiva was studied on its morphology and the blood flow according to the ^<133>Xe clearance method under the four different thermal irritations. The results were as follows : 1) No change on the morphology of blood vessels and the amount of blood flow was observed in the control group, 37℃ (preliminary experiment) group, which exhibited no abnormal clinical and histological findings of ginigva. 2) 45℃ group exhibited similar findings to the control group, i.e. no changes were observed in its clinical and histological findings of gingiva and the morphology of blood vessels as well as the amount of blood flow. 3) 55℃ group showed normal gingival findings clinically, however, a slight disturbance was observed histologically, and morphological changes of blood vessels together with the persistent decrease of blood flow were recognized. 4) 65℃ group and 75℃ group showed considerable disorders on clinical and histological findings of gingiva and, in accordance to those, morphological changes of blood vessels and the decrease of the amount of blood flow were observed. From these results, it may be concluded that the amount of blood flow decreases when gingiva is suffered from some pathologic conditions such as inflammation. Even in the clinically normal gingiva, the changes in blood flow were found when pathologic conditions were observed histologically.
- 特定非営利活動法人日本歯周病学会の論文
- 1975-09-25
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関連論文
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- 4.各種刺激に対する微細循環系の形態反応に関する研究 : Golden Hamsterに対する温度刺激について(第16回 日本歯周病学会総会一般講演要旨)
- 温熱刺激に対する歯肉の微細血管形態と血流量に関する実験的研究