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.
What happens when you get your braces tightened? well i have braces and i am scared to get them tightened because people say it is painful Update: i got by braces a few weeks ago and i have to get them tightened but i am scared because people say it hurts... Update 2: I don't have bands/rubber bands people! Update 3: I have top and bottom braces but no ruberbands ok people :o.