@article{oai:mdu.repo.nii.ac.jp:00001263,
 author = {OTA, NORIO and AKAHANE, SHOJI and MUSHA, YOSHINORI},
 issue = {1},
 journal = {松本歯学},
 month = {Apr},
 note = {application/pdf, Using 30 second-year students of the Matsumoto Dental College. School of Dental Hygiene as subjects, we performed investigations on toothbrush filament shape changes using 4 test toothbrushes and 4 different brushing techniques over 2 weeks periods. Also, observation by scanning electron microscopy was done for the toothbrushes which yielded the second and the worst effectiveness of plaque removal. The results were as follows: 1. The round-cut filament was worn semispherically or triangularly when using the rolling and Stillman techniques. Also, the round-cut and moving areas of the toothbrush body were worn significantly with the rolling and Stillman techniques. 2. The ditches at the filament edge were not as deep after two weeks of using the Bass and scrub techniques. There were deep ditches and scratches on the edge and center area of the filament with the rolling and modified Stillman techniques.},
 pages = {35--40},
 title = {Scanning Electron Microscopic Investigations of the Shape of Toothbrush Filaments with Various Brushing Techniques II. The scond and the worst cases of plaque removal},
 volume = {13},
 year = {1987}
}