Shock Collar Question - May 5


Brooke is wearing the Shock Collar this morning!

Today's question: Some of the oldest teeth-cleaning artifacts in history date back over 2,500 years. Tooth powder and tooth cream used to be made of abrasive substances like crushed seashells mixed with oils to fight germs. In fact, Dental hygiene has existed for centuries but did you know that daily teeth cleaning has only been around since the 20th century,? It was made popular by one specific group of people. Which group popularized daily brushing?

Shock Collar Question - May 5