“The open cavity presents the advanced stage of the caries lesion. Usually the disease process is active, and is progressing at an accelerated rate.”
“Especially useful for removing material from the tooth for microscopic preparations in studying the composition of the film pad, is a teasing needle made by grinding to spade or spatula shape a No. 10 silver steel sewing needle driven (eye end) into a four inch length of three-sixteenths inch wooden doweling.”
“There is no reason to suppose that this organism bears any specific relation to caries, with the exception that it is an important component of the bacterial film (plaque material) on teeth and in cavities, without which lesions do not originate or advance.”
"A Clean Tooth Does Not Decay, nor does periodontoclasia occur about a clean tooth." C. C. Bass, M.D.