Consider the following examples of two different types of statistical investigations. Example 1 Radio rating services sometimes collect data on listenership by asking participants to record the date, time, and station each time they listen to the radio.
Popular types of invisible braces include ceramic brackets, inside braces and clear aligners. Ceramic braces are just like metal braces, except that they use tooth-colored brackets (and sometimes tooth-colored wires) rather than metal to straighten teeth.
The three main parts of your braces are: 1  Brackets â Brackets are attached to the teeth using special glue that bonds them to the tooth surface and holds them in place. 2  Archwire â The archwire is the thin metal wire that connects each bracket and puts pressure on the teeth to help guide them into place.