Gráinne Paula Conway, a former Director of Nursing at the Leas Cross nursing home from 1999 to 2005, has been found guilty of professional misconduct by An Bord Altranais.
Ms Conway has been removed from the nursing register following a hearing of the nursing board's Fitness to Practise Committee.
It found she failed to ensure residents at Leas Cross received adequate care.
Ms Conway was no longer working in Leas Cross when Primetime Investigates went undercover and discovered incidents of mistreatment of residents in May 2005.
The home was subsequently closed.