A study on the toothbrushing habits in lower school children.

previous surveys dealing with the toothbrushing habits is as to the number of times these children brush their teeth per day for a given period of time. Studies of this kind throughout a year or years are still scanty not only in Japan, but also in foreign countries. In the present study, therefore, the author was concerned with a year-long survey regarding the manner and frequency of toothbrushing habits on the part of the elementary and lower secondary schools in an effort to incorporate the results in a more effective toothbrushing program in the future.