Note 89 — Chapter XVII · COFFEE, MEDICINALLY AND DIETETICALLY CONSIDERED.—THE TRUE THEORY OF STIMULATION.[84]
Reading edition
The prevalence of “bad teeth” is in my opinion referable chiefly to three causes: (1) innutrition resulting from the use of impoverished or indigestible food substance, (2) the use of hot drinks, (3) non-use of the teeth; dental exercise is the best dentifrice. Observe the quality, whiteness and clean condition of the dogs’ teeth: from early youth their “tooth-brushes” are bones, which they are constantly gnawing. Bread-crusts, or wheat-kernels, would do the business for our young growing children, replacing “candy,” for instance.