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.
Types of Braces. Invisalign | Rubber Bands. InvisalignÂ®. InvisalignÂ® is the clear way to straighten teeth without braces, using aligners. Aligners are removable and virtually invisible, which means you can straighten your teeth without anyone knowing; and you can still eat and drink what you want. Also, you can brush and floss normally to maintain healthy gums and teeth; and there are no wires, metal or brackets to cause mouth abrasions.