The 17-year-old actor Gaten Matarazzo aka "Dustin Henderson" in Stranger Things, posted a picture on Instagram, following his fourth surgery - he was born with cleidocranial dysplasia, a rare genetic disorder that affects teeth and bones.

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The surgery was a success:

Gaten Matarazzo has been spreading awareness about his rare bone condition

The Stranger Things star has also encouraged fans to learn more about his condition and how they can help those with it. He previously revealed that although his case is not severe, it has affected his on-screen abilities: "It’s one of the reasons why I haven’t been getting roles, because of my lisp, and the teeth situation, and my height," he said.

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Gaten Matarazzo attends the Premiere of Disney's "Star Wars: The Rise Of Skywalker," Hollywood, California, 2019