Posts for: April, 2018
The primary goal of dental care is to preserve teeth. But there are circumstances in which removing a tooth, even a relatively healthy one, could prove best in the long run.
A malocclusion (poor bite) related to crowding might fit such a circumstance. Crowding occurs when the size of the jaw is too small for the teeth coming in. With not enough space, some teeth could erupt out of their proper positions. Removing certain teeth frees up space to eventually allow braces or other orthodontic devices to re-align the teeth.
The teeth most frequently removed are the first bicuspids, located between the cuspid (the "eyeteeth" directly under the eyes) and the back teeth, and the second premolar. Removing these won't normally affect appearance or functionality once orthodontic or cosmetic treatments are complete.
Because of the mechanics of jaw development it might be necessary to perform these extractions several years before orthodontic treatment. This could create another potential problem: the time lag could adversely affect bone health.
This is because bone, as living tissue, has a life cycle with cells forming, functioning and then dissolving, and new cells taking their place. When teeth are chewing or in contact with each other they generate force that travels through the tooth roots to the bone and stimulates cell growth at a healthy replacement rate.
But when a tooth is missing, so is this stimulation. This slows the replacement rate and eventually leads to decreased bone volume. Too much bone loss could create obstacles for orthodontic treatment or a future dental implant.
To avoid this, the dentist will often place a bone graft with processed bone mineral within the empty tooth socket right after extraction. The graft serves as a scaffold for bone cells to grow upon. The graft (plus any other added growth boosters) can help maintain a healthy level of bone volume to facilitate future orthodontic or restorative treatments.
Since targeted extraction for orthodontics is time-sensitive, you should have your child's bite evaluated by an orthodontist by age 7 to see if any action is necessary. The earlier a malocclusion is detected, the more likely a more attractive and healthy smile will be the ultimate outcome.
If you would like more information on correcting poor bites, 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 “Tooth Removal for Orthodontic Reasons.”
Not long ago the dental bridge was the alternative treatment of choice to partial dentures for restoring lost teeth. Over the last few decades, however, dental implants have nudged bridgework out of this premier spot.
That doesn’t mean, though, that bridgework has gone the way of the horse and buggy. In fact, it may still be a solid restorative alternative to partial dentures for certain people.
A traditional bridge consists of a series of porcelain crowns affixed to each other like pickets in a fence. The end crowns are fitted onto the teeth on either side of the empty tooth space; known as abutment teeth, they support the bridge. The crowns in the middle, known as pontics (from the French for “bridge”), replace the teeth that have been lost.
Bridges have been an effective and cosmetically pleasing method for tooth replacement for nearly a century. To achieve those results, though, a good portion of the abutment teeth’s structure must be removed to accommodate the crowns. This permanently alters these teeth, so they’ll require a restoration from that point on.
Dental implants, on the other hand, can be installed in the missing space without impacting any neighboring teeth. What’s more, implants provide greater support to the underlying bone than can be achieved with bridgework.
But not everyone is a viable candidate for implants, and ironically the reason most often has to do with the bone. If a patient has suffered significant bone volume loss, either because of disease or the long-term absence of the natural teeth, there may not be enough bone to properly support an implant. Unless we can adequately restore this lost bone volume through grafting, we’ll need to consider another type of restoration.
That’s where bridgework could be a viable option for patients in this or similar situations. With continuing advances in materials and new applications, the traditional bridge still remains an effective and important means to restore a smile marred by missing teeth.
If you would like more information on dental restoration options, 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 “Crowns & Bridgework.”