“…In the current study, the corresponding rates were 36.5% and 42.9% for the submarine and marine groups, respectively. In Deutsch's study of an American submarine crew, the average rates of tooth brushing and dental flossing were 1.79 and 0.63 times a day, respectively (5). In the present study, the values were 1.35 and 0.473, respectively, for the submarine group and 1.36 and 0.42, also respectively, for the marine group.…”