The time zones known as Greenwich Mean Time and the International Date Line are sometimes alternatively used to demark the western from eastern hemispheres, but the would not be true hemispheres as those time zones are not straight longitudes.
The final part of braces are interarch rubber bands, which are used to adjust bite and jaw position. These are connected to the brackets with hooks, often connecting the top tooth bracket with the bottom tooth bracket to help adjust the position of the teeth in the mouth and the position of the jaw.
1 Something that is safe for braces. 2  A solution that will get under your braces to whiten your whole tooth so you do not have dark spots where your braces were when they come off. 3  Something that you can put over your braces that will get in and around all edges of the braces.