Can crown be ground to fit opposing teeth?

The need for an adjustment after having a crown placed is not uncommon. How much of an adjustment is possible would really depend on how thick the porcelain is in the area that needs to be adjusted. I would recommend following up with the same dentist who placed your crown. He should be able to tell you how much adjustment can be made. Your dentist may be concerned that further adjusting the crown will make it too thin, and this is why he suggested making a slight adjustment to the opposing tooth.  I hope this helps. Click save on the save button below my name, so that you may ask me more questions in the future.

The crown can certainly be further adjusted. There are 2 downsides. 1. Depending on the thickness of the porcelain, the metal beneath the crown may be exposed which doesn't look so nice and 2. The porcelain that remains after adjusting may not be able to be fully polished which can then lead to opposing tooth wear.

In terms of removing the crown, it's usually straightforward to remove a crown with metal beneath the porcelain. It would be a last resort and not typical for your situation. A slight adjustment would probably suffice. I hope this helps!

Generally, I would suggest the dentist further reshape the crown.  A really sharp spot on the opposite tooth might warrant a little polishing.

Crowns used to typically be porcelain baked onto a gold or metal sub-structure.  Today many crowns are solid zirconia or porcelain.

Leaving a crown (or filling) too tall can become very painful, and could cause further damage.