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.
If you've ever had braces, your orthodontist may have prescribed rubber band attachments to the brackets. You likely saw a drastic improvement in the straightness of your teeth while using rubber bands. Because of their strength, rubber bands can cause teeth to move in different directions and straighten more quickly.ou likely saw a drastic improvement in the straightness of your teeth while using rubber bands. Because of their strength, rubber bands can cause teeth to move in different directions and straighten more quickly.