A teenager experiences many rites of passage: pimples, a first crush, a first kiss, a driver's license, the prom and braces.

The last ordeal is perhaps the most dreaded.

While braces may be something no teen looks forward to, millions of smiles are enhanced by the work of braces.

The job of these dental appliances is to apply pressure to teeth, which makes them stay in a certain spot, creating straighter teeth and a beautiful smile.

The American Association of Orthodontics recommends that every child get a checkup with an orthodontist by age 7.

Some orthodontic problems are easier to correct if detected sooner rather than later, and early treatment can prevent more severe problems later in life.

Without treatment, teeth problems can lead to tooth decay, gum disease, bone destruction, chew problems and digestive difficulties. A bad bite can contribute to speech impediments, tooth loss, chipped teeth and other dental injuries.

The length of time for a teenager to wear braces varies, but most teens wear them for two years.

The time frame depends on the health of the teeth, gums and bones, the severity of the problem, and how closely the patient follows instructions (such as wearing a headgear or a retainer).

Today's braces are different from those of yesteryear.

Brackets, the part of the braces that holds the wire, come in traditional metal as well as clear or tooth color.

Sometimes, brackets can even be put on the back of the teeth to completely minimize the appearance of braces.

Wires are smaller and more advanced than in the past, straightening teeth even faster.

Because they have a mouth full of wires, braces wearers need to be on top of their dental health.

It's important to brush after meals, remove anything lodged in braces and avoid foods that can get stuck in braces like popcorn, gum and hard candy.

True, it's hard to get excited about having wire, rubber bands and other gadgets in your mouth. Braces are definitely not as fun as the prom.

But you'll know they were worth any amount of pain they might have caused when you see the end result - a beautiful smile.