What causes shifting of the teeth?

Multiple reasons: Genetics, age, grinding, bad habits, cavities and decay.The end result can be spaces, gaps, crookedness and misalignment.Not to worry, that can all be fixed if identified early on.

Loss of teeth: Can cause the teeth to the area where a tooth was extracted. Except for wisdom teeth it is important to replace the missing tooth with an implant, a bridge, or a denture.