Classic braces are the metal braces, which are very common. They consist of metal braces, metal wires, and colored rubber bands. Other types of braces include: Lingual braces, which are placed behind the teeth Aligner trays, which can be taken off and put back on Ceramic braces, which are colored like teeth and are far less visible than metal braces Braces take between one and two hours to be installed, depending on the type of braces being installed and your individual teeth, the rate at which your orthodontist works, and more.