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.
Invisalign braces are just another type of orthodontic appliance used to create a constant force on the teeth in order to move them. When worn correctly they will move the teeth. Anytime teeth are moved the body produces chemicals to help the teeth move and the bone remodel around the teeth. These chemicals, while helping the body move the teeth will also produce soreness and sensitivity around the teeth.