TMI Alert! Stars at the Dentist!

Even Glee tough guy Mark Salling fears the man with the drill! Check out Julianne Hough, Kim Kardashian and more stars as they open wide

MARK SALLING

"Good times at the dentist," Tweeted a very worried-looking Salling, who got his pearly whites polished before returning to belt out those notes for Glee's New Directions.