“Any person, to prevent the initiation and further progress of caries and periodontoclasia, must clean his teeth right, every night before retiring. If he also cleans them at other times, this contributes to greater personal oral cleanliness.”
“Another important use of dental floss is cleaning the surface of the tooth at the gingival margin and within the gingival crevice, down to the very bottom. Too large a string must be forced, to pass it into the narrow space between the tooth and the gum.”
“Most people do not now know that it is necessary to use dental floss, or how to use it. They must be taught. Those who are interested in teaching personal oral hygiene, and in promoting dental health and personal oral cleanliness, must give proper consideration to dental floss.”
"A Clean Tooth Does Not Decay, nor does periodontoclasia occur about a clean tooth." C. C. Bass, M.D.