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When he and his son started the Sheffield Dentifrice Co. in 1880, they improved and reformulated that mouthwash and sold it as “Sheffield’s Elixir Balm” for the gums. Based on contemporary news reports at the time, Sheffield conceived of a ready-made tooth crème in the mid-1870s and was using it on his patients with great praise from them.
The principles of the chemo-parasitic theory were bolstered by the descriptions of bacterial plaque on tooth surfaces independently by GV Black and by JL Williams in 1898. The biomass of plaque helps localize acids at the tooth surface and prevent dilution by saliva. Miller thought that no single species of bacteria could cause caries.
Anderson's theory of faulting, devised by Ernest Masson Anderson in 1905, is a way of classifying geological faults by use of principal stress. [1] [2] A fault is a fracture in the surface of the Earth that occurs when rocks break under extreme stress. [3] Movement of rock along the fracture occurs in faults.
Dr. Lyon's Tooth Powder: a brand of powdered dentifrice mainly popular during the mid twentieth century. It is still available today in independent drug stores and certain drug store chains. Created by Dr. I. W. Lyon, D.D.S. [19] Elmex: [20] sold since 1962, was manufactured by GABA International AG, a Swiss manufacturer of branded oral care ...
Red tooth powder from India. Tooth powder was historically used among the Romans to clean and whiten teeth, to fix them when loose, to strengthen the gums, and to assuage toothache. [2] [3] [4] They made tooth powder from a variety of substances, such as the bones, hoofs, and horns of certain animals; [2] crabs; oyster [5] and murex shells; and ...
A 1930s poster from the Work Projects Administration promoting oral hygiene. Tooth decay is the most common global disease. [14] Over 80% of cavities occur inside fissures in teeth where brushing cannot reach food left trapped after eating and saliva and fluoride have no access to neutralize acid and remineralize demineralized teeth, unlike easy-to-clean parts of the tooth, where fewer ...
Dipping tobacco. Dipping tobacco is a type of finely ground or shredded, moistened smokeless tobacco product. It is commonly and idiomatically known as dip. Dipping tobacco is used by placing a pinch, or "dip", of tobacco between the lip and the gum (sublabial administration). The act of using it is called dipping.
The powder contained orris root, carbonate of calcium, and magnesia. The liquid contained castile soap (soap made exclusively from vegetable oil), glycerin , sizeable portions of water and alcohol , and, for flavoring, a small quantity of oil of peppermint , clover , cinnamon , and star anise , as well as, for coloring, cochineal (a dye made ...
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