The tooth may be slightly tender for the next 24 to 36 hours. Ibuprofen (such as Motrin or Advil) should be adequate for relief.
If a temporary filling was placed, please be gentle when eating, as well as when you are brushing and flossing. Stay away from overly hard and or chewy foods.
The definitive restoration recommended for the tooth will depend on the amount of remaining tooth structure and location of the tooth. Many root canal treated teeth will require a crown to avoid future fractures. This is because the tooth will become brittle and more susceptible to fracture after root canal treatment.