歯肉炎時における歯肉のひずみおよび脈波の研究

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Ten adult mongrel dogs were used for this investigation. Two of them were used for control and the gingiva of maxillary cuspid of the rest dogs were exposed to warm water jet and inserted the Gin-Pack into the gingival crevice for causing experimental slight and moderate gingivitis. All maxillary cuspid gingiva were jetted with Water Pik at various setting of the dial. The handpiece of the machine was held in vertical direction and 10mm from the target area. The strain and pulsation on the gingiva induced by water pressure were recorded by the oscillograph. The results were obtained as follows: I. Gingival strain 1. Normal gingiva: 1) When the Water Pik was set on a lower dial number, the pattern of the gingival strain was regular, and when the Water Pik was set higher, an irregular pattern was observed. 2) When setting the dial on number three, a more clear and regular pattern was observed. 3) Except forthe dial number five, the height of the spike of the strain depended on the strengh of the water pressure, but set on the dial number five, the pattern showed a lower level height. 2. Slight gingivitis: 1) An irregular strain was developed, but there was no correlation with the strengh of the water pressure. 2) The height of the spike of strain was according to the dial number 1≒5<3. 3) Except for the dial number three, there was a larger strain than in the normal gingival strain. 3. Moderate gingivitis: There was more irregular strain than the above two groups and the spike was in the level near the dial number five on the normal gingiva. II. Gingival pulsation 1. In the normal gingiva, after the water pressure was applied, there was a smaller pulsation than before. 2. In both experimental gingivitis, the pulsation was irregular and inconspicous. 3. On the moderate gingivitis, when the dial setting was on five, there was no spike in the base line.
特定非営利活動法人日本歯周病学会の論文
1981-03-28

著者

星原安石
城西歯科大学歯周病学講座

歯肉炎時における歯肉のひずみおよび脈波の研究

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