"To clean the teeth" means to use a toothbrush and toothpaste to remove dirt, food particles, and bacteria from your teeth in order to keep them healthy and prevent cavities or gum diseases. Full definition
This mechanical chewing action helps clean their teeth like brushing. (petpeoplestores.com)
In my opinion, the thought of cleaning your small dogs teeth with dry dog food is along the same line as cleaning your teeth with tortilla chips. (dogingtonpost.com)
The procedure consists of cleaning the teeth by scraping the tartar build up using manual tools or ultrasound. (dogplaqueremovaltips.com)