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The post also directs followers to go to ccdsmiles.org to learn more about cleidocranial dysplasia, and ways of helping those with the condition.

Matarazzo didn't offer any further details on his surgery, but he told People magazine back in 2016 that he’s previously had several surgeries on his mouth, adding that he has a comparatively mild case of cleidocranial dysplasia, or CCD, compared to others.

Netflix announced in September 2019 that \"Stranger Things\" will be back for a fourth season, though a premiere date has yet to be announced.

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