Oops, it doesn't look like 'Cavity Prevention Awareness day' is a national day..

Other days

eat what you want

Eat What You Want Day
youth

Youth Day
buddy

Buddy Day
my little pony

My Little Pony Day
boy friend

Boy Friend Day
comfy

Comfy Day
bow tie

Bow Tie Day
pumpkin

Pumpkin Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
china

China Day