Abstract
The onset of dental caries and periodontal disease is caused by plaque formed of oral bacteria. We can prevent both of them by making appropriate plaque control routine practice. According to the national health and nutrition examination survey of 2010, 96％ of Japanese use a toothbrush, 20 ％ an interdental brush, and 12 ％ dental floss. With toothbrush, the interdental plaque removal rate is limited to 58％．Therefore, gingival inflammation often occurs from this part and then further develops into periodontal disease; hence, use of dental floss or interdental brush is strongly recommended. However, there are many patients who have not yet recognized the importance of improving self care by using additional devices to a toothbrush. Prevention of interdental caries and periodontal disease is possible by utilizing dental floss as an interdental cleaning tool. The present paper is to report a case in which our team gave great importance to plaque control in the high risk areas and achieved considerable improvement in oral health together with the patient by repeating oral hygiene instructions.
