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Dental crowns

Dental crowns are permanent tooth covers that are cemented to chipped, cracked or broken teeth to improve their appearance and function.

Can teeth shift because of a tight crown?

Steven Bader (Newton Centre, MA) on Jan 8, 2012
Although anything is possible, it is very unlikely that one new crown created any significant shift in your front teeth. Front teeth, especially lower, do tend to get crowded over time. You should be checked for any signs of periodontal disease because that is one cause for more rapid shifting of teeth.
Amanda Seay (Mount Pleasant, SC) on Jan 3, 2012
If a crown does not fit properly it can not only cause shifting of teeth in a horizontal direction but also in a vertical direction as well. What this means is that you can develop spaces, shifting and tipping of teeth, and changes in your bite. A properly fitting crown should not only fit the underlying tooth structure but also have some intimate contact with the adjacent teeth. This means it should provide a nice and easy snap when you floss. If the floss slides through too easily then this can cause the adjacent teeth to shift into that available space. It should also provide equal intensity contact to the opposing tooth when compared to the teeth around it. If the crown is hitting with more intensity or less intensity then once again, the adjacent teeth can be affected. Most often times people will adapt to the changes over time but adaptation does not mean it is a good thing. It means that the teeth, muscles or joint may have compensated for the ill-fitting crown and you can develop problems in other areas. If your crown is in the back then it is not likely that the "tightness" of the crown caused crowding to your front teeth. However, if the crown caused a major change in your bite then it may be possible that your mouth has adapted for that change.
Les Latner (Los Angeles, CA) on Dec 30, 2011
Without pre-treatment models and photographs, this is a hard thing to know for sure. It is doubtful that teeth would shift noticably because a new crown was tight. I think it possible that the teeth might shift just a little so that the bite feels off, but I do not think that you would see this as it would be too small to tell. Les Latner, DDS