歯ブラシ線維の使用後における植毛部別寸法変化とSEM観察及び線維の汚れ程度について

概要

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Toothbrushing plays a central role of maintaining a periodontal health. The purpose of the present study is to examine the dimensional changes in diameter of the filaments taken from different locations of toothbrush after the use of given period of weeks (2, 4, 6, 8 and 10 weeks), comparing the effect of brushing methods and the use of dentifrice. Surface charactereistics were also assessed through the staining the filaments by basic fuchsin and through the observation by scanning electron micrography and by microradiography. At the 0.3mm from the free end of the filaments taken from the outermost row, the decrease in diameter did not differ between toothbrushing methods. However, at the 0.3mm point taken from the inner tufts, the decrease of diameter was significantly greater for the filaments taken from the toothbrush performed by scrub toothbrushing method than that performed by roll method. This result indicates the principal location of the working point would be at the end of the filament in scrub toothbrushing method. Scanning electron micrographic study revealed that the use of dentifrice afford long and deep scraches on the surface resulting in the rapid worn out of the filament. On the surface of the used filaments, some radiopaque deposits were observed on the microradiogram. The mechanisms of this deposition was not clear.
特定非営利活動法人日本歯周病学会の論文
1980-09-28