I had a tiny spot of micro leakage on a composite filling on a molar that I wanted repaired without removing the whole filling.

From the sounds of things, you are not particularly happy with the appearance of the filling that your dentist did.  I would recommend returning to your dentist and explaining to him/her what you do not like about the appearance of your filling.  Your dentist will likely remove your filling and replace it with one that is more cosmetic.  If you speak with your dentist and feel that he/she is unable to correct the issue to your liking, then you could consider finding a great cosmetic dentist to replace the filling.  It would probably be most cost effective for you to have your current dentist correct the issue.  Good luck and I hope this helps. Follow me if you have more questions.Sarah Thompson, DMD

It sounds like your dentist did the proper thing by removing all of your filling rather than just fix the spot as you wanted.  It is very difficult to get a new filling to strongly bond to an old filling.  Decay can actually track under an old filling.  Just "fixing the spot" can lead to more problems down the road.  It is better to remove the entire filling, usually, and replace it with a new one.  If you are unhappy with the color discuss it with your dentist.  But you might ask your friends if they can even see what you are concerned with if it is a ways back in your mouth.  If you are still unhappy I am sure your dentist will help you correct the problem.  Good luck to you!