I was wondering, for a root canal , I went last week for the first part. Usually you get a rubber dam, a shot and such but this time since my tooth was so dead they told me i did not need the shot and they would start drilling and i wouldnt feel a thing. They drilled, got the puss out, suctioned and what not. Im going back on the 31st for the second visit im guessing for a cap? What will they do now? Will i need a shot this time or..?