A Cavity hard at work

The Cavities are characters that appeared in the Kirby: Right Back at Ya!, in episode 95 (32 in the Japanese version) called A Dental Dilemma.

Cavities live in someone's teeth and have pickaxes to dig the teeth. They started living in King Dedede's and Tuff's teeth to cause tooth decay, because they didn't brush their teeth. Their weakness is dental help. They're purple with pink eyes and four teeth. They also don't have many distinctive features. They can multiply quickly.

They were killed or otherwise removed by Hardy and Yabui.