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.
* Required Fields. The Braces mouthguard: offering essential protection for athletes with braces, is specifically designed to conform to upper brace brackets for instant comfort and prevention from lacerations. Made with 100% medical-grade silicone, it adapts to changes in mouth structure as teeth adjust. Available in strapped or strapless versions.