歯ブラシ線維の使用後における寸法変化について

概要

論文の詳細を見る
Toothbrushing plays a central role of maintaining a periodontal health so that the design of an adequate tooth-brush has been well established. However, there is no scientific evidence on the durability of the tooth-brush. It is empirically and theoretically accepted that the dimensional changes, especially the decrease in diameter of the filament should result in the decrease in the flexibility of the tufts of tooth-brush and subsequent decrease of efficacy of plaque removal. This study was performed to find the changes in diameter of the filament after the use of given period of weeks. Thirty-eight dental hygienists and 10 dentists were requested to brush with either roll toothbrushing method or horizontal scrub toothbrushing method, with or without dentifrice for 2, 4, 6, 8 and 10 weeks. Multitufted hard tooth-brush with Dupont nylon 612 filament was used as an experimental tooth-brush. The results confirmed that the filament worn out as the period of use became longer. It is especially remarkable at the tip of the filament used with horizontal scrub toothbrushing. On the other hand, roll method decrease the side of the filament as expected, but the extent of wear was comparably lower. The use of dentifrice during toothbrushing enhance the tendency of wear drastically.
特定非営利活動法人日本歯周病学会の論文
1980-03-28