Lindsay Lohan is on the road to the recovery -- dentally speaking, at least.

Over two weeks after the ever-embattled actress, 25, flashed shockingly yellowed, decaying teeth at a Hollywood red carpet event, she proved her million-dollar smile is on the mend.

Lohan shared a brand-new pic -- revealing a whiter, even-looking smile -- on her WhoSay page Saturday. On a bedside table by the Mean Girls' in the pic: An ashtray with a stubbed-out cigarette or two, plus a can and glass containing unidentified beverages.

"Thanks Dr. Dorfman for the zoom," Lohan wrote beneath the beaming photo. "My gums are so sore though!"

Dr. Dorfman would be Dr. Bill Dorfman, DDS, a high-profile, L.A-based dentist who's worked with such stars as Eva Longoria, Jessica Simpson, Anne Hathaway, Usher and Ozzy Osbourne.

Despite the new and improved smile, Lohan has graver matters to worry about: On Wednesday, she has a hearing with Judge Sautner, who could sentence her to a year and a half in jail for violating the terms of her probation.