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A Comparison of Four Types of Toothbrushes and Different Tooth Brushing Methods on Plaque Removal II. Examinations using first year dental hygiene students as subjects OTA, NORIO MUSHA, YOSHINORI HAYASHI, SATOSHI ISAKA, TAKAICHI brushing method tooth brush plaque removal periodontal disease oral hygiene application/pdf In a continuation of the first report, the authors hoped to clarify the relationship between toothbrush specifications and various brushing methods. For this purpose, we compared the effectiveness of plaque removal for 4 different types of brushes with 4 different brushing methods. The first year students of Matsumoto Dental College, School of Dental Hygiene, were selected as subjects. The results were as follows: 1. Brushing methods: No significant difference was observed with the roll, Bass, or modified Stillman methods when all surfaces were grouped together. Also, no significant difference was observed on the facial surfaces with the different methods. However, the Bass and roll methods tended to be slightly better. The results of this study did not correlate with the previous study or with the reports from Arai and Watanabe. The subjects' skill and control at the time of evaluation were taken into consideration. 2. Test brushed: Test brush S was the most effective when all surfaces were grouped together and test brush M was the least effective. This tendency was observed on both the facial and the proximo facial surfaces. 3. Interaction between test brushes and the amount of plaque prior to testing: It was observed that subjects who were divided into the "small" group prior to testing kept the amount of plaque at the same low level after testing. By comparing the results with the previous report, the authors concluded that there was more advancement in the skill of the second year students than the first year students. 松本歯科大学学会 1987-04-30 eng journal article VoR https://mdu.repo.nii.ac.jp/records/1264 AN00232590 0385-1613 松本歯学 13 1 41 49 https://mdu.repo.nii.ac.jp/record/1264/files/matsumoto_shigaku_13-01-03.pdf application/pdf 368.7 kB 2012-05-24