Maybe you had braces as a child, or you are thinking of having your own (it's never too late) or your child's teeth straightened through orthodontia. But how much do you really know about this branch of dentistry? Here are six questions people often ask about orthodontia.

Q. How did the word “orthodontia” originate?
A. From Latin roots meaning “straight” and “teeth”

Q. Teeth are anchored in bone. How is it possible to move them?
A. Living bone is not unchanging. The bone, ligament, and the outer layer of a tooth's root (called cementum) react to the stresses of biting and chewing. Due to this stimulation the bone is constantly being resorbed (broken down) and rebuilt as it is pushed from one side of a tooth and pulled from the other. Under normal conditions, there is a balance resulting in a steady state. Orthodontia takes advantage of this process to slowly change the teeth's position in the desired way.

Q. My dentist talks about the periodontal ligament. What does this mean?
A. The ligament is a fibrous tissue that connects the teeth to their bone and takes part in the dynamic process of resorption and rebuilding of the bone.

Q. What kinds of conditions can orthodontia correct?
A. Treatment can improve the teeth's position and relations to each other (being too crowded or badly spaced) and the way the upper and lower jaws relate. It can enhance the appearance of a person's teeth and face, and can also improve the teeth's function in biting and chewing.

Q. What is the best first step to orthodontic treatment?
A. Talk to your general dentist about your concerns. If you are referred to an orthodontist, the next step is to assess your situation using molds of your teeth that show the way the upper and lower teeth meet (your bite). Special x-rays will be taken to show the locations of your teeth and relation of your upper and lower jaw. Your dental team may also use photographs of your smile and computer imaging to get a clear view of how your teeth are now and how they may be moved.

Q. What are some of the methods of treatment?
A. In the traditional method, small metal brackets are attached to the crowns of the teeth. Thin wires, called arch wires, are strung through attachments on the brackets. These wires are used to apply controlled force to direct the teeth in the desired direction. Another method is to use removable clear plastic aligners. A series of aligners is designed by a computer, to be changed from one to the next as the positions of the teeth slowly change.

Contact us today to schedule an appointment to discuss your questions about braces and orthodontia. You can also learn more by reading the Dear Doctor magazine articles “Moving Teeth with Orthodontics” and “The Magic of Orthodontics.”

We'd like to take a moment to clarify why it is so important to wear the retainer(s) given to you after your orthodontic treatment. These devices, which literally “retain” your teeth in their new and improved positions, are not just for kids. Anyone who has recently had their teeth moved through orthodontics needs to wear them for the prescribed length of time. Here's why:

Though your teeth may now look perfectly aligned, research has shown that there is no “right” position for your teeth to be in that can assure they don't move again — no matter what age you are when treated for malocclusion (“mal” – bad; “occlusion” – bite). In fact, most people will see changes to their bite and tooth alignment as they get older, with or without orthodontic treatment.

For one thing, there is a natural tendency for bottom front teeth to undergo a gradual “uprighting” with age. This can cause them to crowd as they move toward the tongue. And it happens regardless of whether wisdom teeth are present.

In the case of teeth that have been straightened recently, a type of “memory” of their original position may cause them to drift back to it. This tendency gradually lessens, but it may be a problem for up to 18 months.

That's why it's crucial to follow our instructions for wearing retainers. Keep in mind that the plan we have given you is designed to achieve the best possible results in your individual case. Some people will need to wear retainers 24 hours per day, some just at night, and still others on an as-needed basis. You may have received a removable retainer or one that is secured to the back of your teeth. The important thing is to secure the results you've worked so hard to achieve.

If you have any questions about orthodontic retainers, please contact us, or schedule an appointment for an orthodontic consultation.

You can read more about this topic in the Dear Doctor magazine article “The Importance of Orthodontic Retainers.”

On the day when braces come off, most people feel that their orthodontic treatment is over. When they are then asked to wear retainers, they may wonder what this additional requirement will accomplish. Wasn't the work of moving their teeth to desired positions already completed? To understand the answer to this question, you need to understand how orthodontics works.

How does orthodontic treatment remodel your smile?

Although they give the appearance of being stable and unmoving, teeth and their surrounding structures (gums, jawbones, and ligaments) are living tissues and are actually in a constant state of change.

Teeth are rooted in bone and are attached by a fibrous tissue called the periodontal ligament (from peri meaning around and odont meaning tooth). One side of the ligament attaches to the cementum (part of the tooth's root) and the other side is attached to the bone, with the tooth suspended in between.

These tissues are constantly remodeling themselves, but pressure from the lips and cheeks on one side and from the tongue on the other create a balance that keeps the teeth suspended in the same location. When mild forces are placed on the teeth, such as the forces from the wires used in orthodontic treatment, the tissues slowly adapt and rebuild, resulting in a new position for the teeth.

What are retainers?

Orthodontic retainers are devices usually made of a clear plastic section that is fitted to the roof of the mouth, with thin wires that fit over the teeth.

What is the purpose of retainers?

The remodeling process keeps going after the orthodontic treatment stops, so time is needed for the teeth to reach a new balanced state. The retainer stabilizes them in their new position so that bone and ligament can reform around the teeth and hold them there. This works well for adolescents, whose jaws are in a state of growth, but adults may need outside assistance to stabilize their teeth for a longer time. They may be asked to wear retainers indefinitely to make sure their teeth do not move from their new positions.

What happens if you don't wear your retainers?

If you don't wear your retainers, your teeth are likely to return to the positions they had prior to your orthodontic treatment. This can happen fairly rapidly, underscoring the importance of wearing retainers as instructed.

What are the different types of retainers?

Most retainers are removable devices as described above. For people who require long-term use of retainers, thin retainer wires can be bonded to the inside surfaces of their front teeth. Such wires are usually left in place for several years, relieving them of the need to remove and replace their retainers.

Contact us today to schedule an appointment to discuss your questions about orthodontics and retainers. You can also learn more by reading the Dear Doctor magazine article “Why Orthodontic Retainers?”

The much anticipated day has arrived: your child's braces have been removed. You are really happy with the way your son's or daughter's smile looks now. All the time, money, and discomfort of having teeth straightened have been well worth it.

But did you know that the teeth could relapse into their old positions if your child doesn't wear a retainer every night?

Why is wearing a retainer necessary?
It is important for both you and your child to understand the reason for wearing a retainer. It has to do with how orthodontia works in causing teeth to move to more satisfactory positions.

The reason that orthodontia (“ortho” – straight, “odont” – tooth) works is that the tissues holding teeth in place are living and keep remodeling themselves. Teeth are suspended in the jawbone by the periodontal ligament (“peri” – around, “odont” – tooth), which suspends the tooth by extending from the cementum of the tooth on one side into the bone on the other. Cementum is the thin layer of calcified tissue covering the dentin of the root. When light forces are placed on it, the periodontal ligament can reform itself and adapt to the pressures it is under.

Orthodontists know how to keep the pressures during orthodontic treatment light enough to cause movement that is slow and steady but not so strong that the tissues are damaged. If too much force is applied, the process can cause damage to the periodontal tissues and tooth roots.

When the teeth have moved to their desired positions, they will continue slowly moving. The purpose of a retainer is to stabilize the teeth in their “finished” position. They must be retained in this position long enough that the bone and ligament can completely re-form around them, a process that can take several months.

Make it clear to your child that a retainer won't have to be worn forever. Once your child understands that it is very important to wear the retainer for a few months in order to stabilize that attractive new smile, it should be easy to convince him or her to use it nightly.

Contact us today to schedule an appointment to discuss your questions about retainers. You can also learn more by reading the Dear Doctor magazine article “Why Orthodontic Retainers?”

You didn't have your teeth straightened as a child. Is it too late, or should you have orthodontic treatment now as an adult?

Orthodontics is a sub-specialty of dentistry devoted to the study and treatment of improper bites, or malocclusions. Orthodontic treatment has the goal of slowly applying pressure to teeth in a way that moves them into proper alignment in your mouth.

Recommendations are for children to have their teeth assessed for orthodontic treatment before the age of seven. The whole process can be done more easily while their teeth are coming in and their jaws are still growing.

However, if your teeth are overcrowded, you have an overbite or an underbite, or your teeth are misaligned in other ways, it is never too late. If you “missed the boat” on orthodontic treatment before, here are seven reasons to consider doing it now.

1. Orthodontic treatment brings teeth, lips and face into proportion, resulting in a beautiful smile.
2. An attractive smile contributes to self-esteem, self-confidence and better self-image.
3. Because of improved self-esteem, you may see improved social and career success.
4. Teeth that are in proper alignment will function and wear better over the years as you age.
5. Properly aligned teeth are easier to keep clean, making you less prone to periodontal (gum) disease.
6. If you have any missing teeth that need to be replaced, this can be done more effectively if your remaining teeth are put into their correct spacing and position first.
7. Current options for treatment include fixed appliances (traditional braces) in which bands and brackets are bonded to the teeth and wires are threaded through them — or as an adult you may be able to use removable clear aligners. These consist of a series of nearly invisible computer-generated clear plastic trays that progressively move the teeth into better alignment.

Take the first step: call our office for an orthodontic evaluation. Having orthodontic treatment as an adult may be just the thing to give you an attitude boost as you move forward in your life.

Contact us today to schedule an appointment to discuss your questions about teeth straightening. You can also learn more by reading the Dear Doctor magazine article “Why Straighten Teeth?”