You should probably discuss the specifics of the torus removal with your dentist. But I have done tori removal on the bottom jaw and the patients generally recover fine. There may be a few days of pain and soreness but as the gum tissue heals to protect the area, the pain improves.
The procedure to remove a torus is probably less involved than removing wisdom
teethBroken or knocked out tooth
Dental care - adult
Dental x-rays
Development of baby teeth
Development of permanent teeth
Plaque and tartar on teeth
Teething
Teething symptoms
Toothaches that are going sideways or stuck in the jaw bone. I'm not sure how long the dentist would want to wait until dentures can be worn but its possible that it can be done in the same day.