That’s a tooth extraction, a root canal is where they drill down through the tooth and root to get at and eliminate the infection, saving the tooth. It’s not a one session job, they drill down then inject antibiotics to kill the infection, then place a temporary filling in the hole. This is to make sure the infection is gone before placing the permanent filling. I had one a few years ago that took several sessions to get rid of the infection. With a good dentist, it’s not painful. Hell, my wisdom teeth extraction was way more painful.
Garbage is not all that’s available here, there are plenty of healthy choices everywhere. You just have to stay away from the fast food peddlers, which includes “fine dining” chain restaurants.