Saturday, December 16, 2017 7:19

How Orthodontics Treatments Works

Posted by on Monday, February 8, 2010, 17:32
This news item was posted in Dental category and has 0 Comments so far.

It is the unique properties of the alveolar bone of the jaws that make it possible to reposition the teeth. The alveolar bone is the part of the jawbone that directly surrounds the roots of the teeth.

Pressure in certain directions, applied through the teeth to the alveolar bone, results in resorption of the bone, which is an actual dissolution; the bone elements are decalcified and carried off by the bloodstream.

Yet force applied to alveolar bone in other directions can serve to strengthen it. These same properties of alveolar bone can cause problems in adult life; resorption of the bone in response to certain pressures, chemical as well as mechanical, leads to periodontal disease, the most common cause of tooth loss.

In fact, a common feature of periodontal treatment is the reshaping of dentition to relieve destructive pressures on the bone while chewing. But the orthodontist is able to relocate teeth by exploiting these properties of alveolar bone.

By the use of orthodontic appliances, usually braces, the doctor creates a controlled pressure that causes a controlled resorption of the alveolar bone. As the bone is resorbed in response to the pressures generated by the braces, the tooth, guided by the appliance, moves into the space created by the resorption.

New bone then forms behind the tooth to fill in the space that has been vacated. This explains how the orthodontist can seem to move a tooth bodily through a block of solid bone. These procedures are not without risk, and care must be taken by the doctor.

In a young child, healing is quick and efficient, and new bone is rapidly formed to replace the resorbed bone. But as the individual gets older this process becomes less efficient, and the teeth must be moved more slowly, lest the new bone not form and the bony defect become permanent, seriously weakening the tooth.

In adults particularly, tooth movement should be done slowly and deliberately. Another risk associated with rapid tooth movement is resorption of the root of the tooth, leaving less root to hold the tooth in place. A competent orthodontist takes great care not to use excessive force or obtain too rapid tooth movement.

You can leave a response, or trackback from your own site.

Leave a Reply