Are the other three heads on the same lateral line? When your head was damaged / broken, dirt and debris may have gotten in the line. You may want to remove the nozzles of those spray bodies and flush any sand or debris out by turning on the valve. BUt this will only be evident if the other heads on the same zone are working. If there is no water what so ever, then a valve replacement as Boots suggested is your wisest choice.
Josh
Irrigation /Landscape Lighting / Pump and Well Specialist