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.
Braces have three basic parts: 1) Brackets â brackets that are attached to each tooth. 2) Bonding or band â the material that attaches the bracket to the tooth. 3) Arch Wire â a thin metal wire that runs from bracket to bracket. Braces have come a long way from the âtrain trackâ look of years ago. Today, many orthodontic patients can get braces that attach to the backs of the teeth, or use transparent brackets.