Oops, it doesn't look like 'oral health day' is a national day..

Other days

cuddle up

Cuddle Up Day
nae nae

Nae Nae Day
cursing

Cursing Day
hoodie

Hoodie Day
my little pony

My Little Pony Day
brow

Brow Day
pampering

Pampering Day
ruby

Ruby Day
carpenters

Carpenters Day
first love

First Love Day