As woof says, the end result should have been checked several times with the articulation paper to assure a proper fit.
Having had number of crowns fitted here in the U.S., I do notice that for the first 2-3 days or so, the newly installed device seems perhaps not fir as good as it could. I attribute this to some swelling of the gums during the procedure. I've not confirmed my suspicions with my dentist, but after a rather short period of time the crown fits better, but the gum line around it is often tender for perhaps a week.
Good luck with it!