Braces are a subject of Orthodontist. Not everybody is recommended to go for braces. A orthodontist needs to undergo certain steps to diagnose whether one needs braces.
First of all an orthodontist will look at the teeth closely in order to determine if braces are needed. Overlapping teeth that crowd each other are difficult to clean, even for a dental hygienist. Adults may want to correct the problem with braces, not just for cosmetic reasons, but to keep teeth as healthy as possible. Teeth that overlap are difficult or even impossible to floss properly, especially for children. Plaque builds up between teeth, causing decay.
Then the orthodontist checks for signs of an overbite in order to determine if teeth need braces. If the front teeth protrude over the bottom teeth, not allowing the teeth to align when they are clenched together, this may be an overbite.
Thereafter your orthodontist will test to see if there may be a possible underbite as another way to determine if teeth need braces. In this case, the bottom teeth will protrude, extending forward beyond the upper teeth. If the teeth can't be clenched together evenly on top and bottom, this may indicate the need for braces or possibly some other form of dental care.
Finally your orthodontist will determine if teeth need braces as early as possible. While adult dental problems can be treated with braces, it's usually easier to start care early in life. Proper alignment of teeth can help prevent tooth decay and gum disease. Getting braces to correct the alignment of teeth can improve the ability to chew properly, thus aiding in healthy digestion.
First the orthodontist will need to reach a diagnosis before deciding on treatment. Reaching the diagnosis means making use of several different tools, including X-rays, photographs and impressions. The X-rays give the orthodontist a good idea of where the teeth are positioned and if any more teeth have yet to come through the gums. Special X-rays that are taken from 360 degrees around the head may also be ordered; this type of X-ray shows the relationships of the teeth to the jaws and the jaws to the head.
The orthodontist may also take regular photographs of the patient's face to help him or her understand these relationships better. And finally, the orthodontist may need an impression made of the patient's teeth. This is done by having the patient bite down on a mushy material that is used later to form an exact copy of the teeth.