Don’t expect a dirty mouth on Cheryl Hines’ next TV character.

The Curb Your Enthusiasm and Suburgatory vet will be guest-starring on Season 7 of The Middle as an entrepreneurial dentist, TVLine has learned exclusively.

In an episode titled “The Convention,” Hines will play Dr. Sommer Samuelson, described as “the head of Smile Superstars International, a dental franchise of which Frankie’s (Patricia Heaton) dental office is now a part. A beautiful, captivating and inspiring force of nature, Dr. Samuelson is one part business woman and a thousand parts motivational speaker, as Frankie and her boss Dr. Goodwin (recurring guest star Jack McBrayer) soon come to find out while attending the company’s bi-annual conference and workshop.”

No airdate has been announced for the episode.

The Middle airs Wednesdays at 8/7c on ABC.

Stoked about Hines entering Middle Earth? Sound off in the comments!