Lindsay Lohan shows off sparkling smile

After her dental hygiene was called into question earlier this month, troubled starlet Lindsay Lohan is showing off a fresh set of pearly whites.

The actress posted a photo to her WhoSay page of her sparkling smile over the weekend, along with a thank you note to her dentist: "Thanks Dr. Dorfman for the zoom... My gums are so sore though!"

People reports Dr. Bill Dorfman is known for hooking up the grins of celebrities like Eva Longoria, Anne Hathaway and Jessica Simpson. If her tweet is any indication, LiLo had a teeth whitening procedure called Zoom, the magazine adds, which you may have seen used on "Extreme Makeover."

But, just as Lindsay's rep pointed out earlier this month, dental drama is the least of the 25-year-old's concerns. The star violated her probation stemming from a necklace theft conviction earlier this month, and has been pulling shifts at a Los Angeles morgue ahead of a probation revocation hearing on Wednesday.