BANGOR — It’s back to the negotiating table for union nurses and officials at Eastern Maine Medical Center.

The nurses union and the Bangor hospital have been unable to agree on a new contract to replace the previous contract, which expired Sept. 30. Negotiations are scheduled to resume today.

The union says the main sticking point is the hospital’s unwillingness to include specified baseline staffing levels in a new three-year contract.

The dispute came to a head last Monday when nurses went on strike for one day following a two-day lockout imposed by hospital administrators before the beginning of the strike. The hospital hired 215 replacement nurses to work during the lockout and strike.