American Journal of Medical Genetics: The Genetic Basis of Tooth Development and Dental Defects (howtoadult.com)
«A mammoth and a mastodon can be immediately distinguished on the basis of their teeth, their big cheek teeth.» (scientificamerican.com)
The crevices in the chews increase tooth surface interaction time and reach down to the base of each tooth to effectively remove plaque and tartar. (petbusiness.com)