Ideally, since you have given her a temporary dressing, we must wait till the patient is completely asymptomatic.
Once it is established that the patient is asymptomatic, the best way to save the tooth would be to restore it with composite or miracle mix and put a CROWN on the tooth.
If ZOE cement was given as temporary then composite may not bond, so miracle mix can be put and a crown wil be the best to safeguard the tooth and ensure its long life
