"Casual observation of people as they smile and talk and laugh reveals only the gross diseases and abnormalities of the teeth, and the absence of those that already have been lost".
"The fact that caries is a local disease and that the way in which it is initiated and progresses as a result of bacterial action has been known since the original, thorough, and convincing work of W. D. Miller first published in this country in 1890. The fact that this explanation of the cause of caries is still questioned, doubted, denied, or misunderstood by many is a good example of how long it may be, sometimes, from a scientific discovery before its potential benefits are fully recognized".
"Dental service alone, no matter how efficient, does not prevent the loss of teeth. This can be accomplished only by the efforts of the patient himself".
"A Clean Tooth Does Not Decay, nor does periodontoclasia occur about a clean tooth." C. C. Bass, M.D.