“Extra” has learned that pop princess Britney Spears made another emergency visit to the hospital Wednesday.

But it’s not what you think!

Britney visited an L.A. medical clinic to see dentist-to-the-stars Dr. William Dorfman, the famed smile guru from TV’s “Extreme Makeover.”

She reportedly spent several hours with Dorfman, and we hope to see her pearly whites again soon!