do they brush their teeth?

update:

I did some research. It seems Eskimos NEVER brushed their teeth, or used any kind of oral hygiene. Despite this, there is no trace of a cavity in any Eskimo skull. No shit. Here is a snippet from one source.

"During the same time the ether was full and the magazine pages were crowded with advertising which told you that mouth chemistry is altered by a paste, a powder, or a gargle so as to prevent decay, that a clean tooth never decays, that a special kind of toothbrush reaches all the crevices, that a particular brand of fruit, milk or bread is rich in elements for tooth health. There were toothbrush drills in the schools. Mothers throughout the land were scolding, coaxing, and bribing to get children to use the preparations, eat the foods, and follow the rules that insured perfect oral hygiene.

Meantime there appeared a statement from Dr. Adelbert Fernald, Curator of the Museum of Dental School, Harvard University, that he had been collecting mouth casts of living Americans, from the most northerly Eskimos south to the Yucatan. The best teeth and the healthiest mouths were found among people who never drank milk since they had ceased to be suckling babes and who never in their lives tasted any of the other things recommended for sound teeth by the New York Commissioner of Health. These people, Eskimos, never use tooth paste, tooth powder, tooth brushes, mouth wash, or gargle. They never take any pains to cleanse their teeth or mouths. They do not visit their dentist twice a year or even once in a lifetime. Their food is exclusively meat. Meat, be it noted, was not mentioned in the advertisement issued by Dr. Wayne.