Posts for: December, 2013
The field of orthodontics continues to progress with new and innovative techniques. One such innovation is known as a TAD — Temporary Anchorage Device. Best described as “mini-implants,” TADs provide orthodontists with more precise control over the movement and positioning of certain teeth that could reduce treatment time.
Braces, the most common form of orthodontic device, are small brackets affixed to the outside of the teeth. We thread small flexible wires through the brackets which in turn apply gentle pressure to the teeth. This puts pressure on the periodontal ligament, an elastic tissue that holds the teeth in place to the jawbone. The ligament has small fibers that insert into the teeth and are held there by a substance called cementum. The pressure on the ligament causes it to form new bone, ligament and cementum as it moves into the new desired position.
Of course, each orthodontic case is different. The best outcome for some patients is to move only certain teeth, while minimizing movement on others. This involves a concept in orthodontics known as “anchorage,” a planned circumstance where certain teeth or groups of teeth are immobilized (or “anchored”) to prevent movement.
TADs do just that — they are, in effect, mini-screws or implants temporarily placed in the jaw bone to inhibit movement of a specific tooth or group of teeth, while not interfering with the movement of the misaligned teeth. These tiny devices are typically installed using only local anesthesia to numb the general location of their placement, and then removed when orthodontic treatment is completed.
TADs are part of an overall strategy to correct poor bite and teeth misalignment in the most precise and efficient way possible. They require planning, sometimes through consultation with different dental disciplines, to assure that their placement won’t damage nerves, sinuses or other vital structures. Their use, though, could help shorten treatment time with braces, and help contribute to the best possible outcome — a new smile.
If you would like more information on transitional mini implants, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “What are TADs?”
When her daughter Ashby was born in 2007, Nancy O'Dell was overjoyed; but she found the experience of pregnancy to be anxiety-provoking. O'Dell is host of the popular entertainment news show Entertainment Tonight.
After her baby was born she compiled her memories and thoughts into a book for first-time pregnant mothers. The book, “Full of Life: Mom to Mom Tips I Wish Someone Had Told Me When I Was Pregnant,” covers a wide range of topics — including oral health during pregnancy.
“While my dental health has always been relatively normal, pregnancy did cause me some concern about my teeth and gums. With my dentist's advice and treatment, the few problems I had were minimized,” O'Dell told Dear Doctor magazine. An example of her experience is a craving for milk that started at about the time the baby's teeth began to form. She felt that her body was telling her to consume more calcium.
As often happens with pregnant mothers, she developed sensitive gums and was diagnosed with “pregnancy gingivitis,” the result of hormonal changes that increase blood flow to the gums.
“I love to smile,” said O'Dell, “and smiles are so important to set people at ease, like when you walk into a room of people you don't know. When you genuinely smile you're able to dissolve that natural wall that exists between strangers.”
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.”