Health Medicine Do children really need root canals? Insurance reimbursements tend to incentivize intervention over prevention, which isn’t always supported by evidence. Christina Szalinski/Undark ...

Learn what the latest studies say about root canals—when they’re needed, how they work, and why quality care matters.

They have extra training that helps them diagnose and treat tooth pain and perform root canals, a special procedure designed to save an infected or decayed tooth.