Temp Bridge pain

I had my four front teeth removed 2 days ago , and had three teeth on each side prepped for my temp bridge, It was a long day. After I was sent home I had some pain on the left side when I bite down on the bridge and of course I was very sore. today I still have nerve pain when I bite down on the left side so I have been eating on the right. I went to the dentist again today and told him I was still getting pain and he said take Advil and we will see if it settles down , and if not we will look into the tooth as it might need a root canal if it don't calm down. I'm also getting a lot of saliva now since this work. Is this normal after such work? I'm very nervous as I don't want more problems.