Teachers Robert Styron and Scott Shively were originally placed on administrative leave earlier in January after allegations of discrimination, harassment and retaliation.
In a letter to school parents, principal William Kohut said both vocal instructors returned to their positions after "appropriate action."
Allegations of abuse painted the school's dance department as a toxic environment. Two teachers involved have voluntarily resigned from the school.
Superintendent Tom Boasberg spent last semester on sabbatical with his family. He returned to higher test scores but ongoing challenges.