Posts for: September, 2021
Dentists extract millions of teeth each year, mostly because of disease. But sometimes a healthy tooth is removed to gain a more favorable, long-term dental health outcome.
An example of this is extracting teeth for the sake of orthodontic treatment. This is often beneficial when treating bite problems caused by crowding, a condition in which not enough space on the jaw exists to accommodate all of the teeth coming in. When this happens, the limited space can force teeth out of their proper alignment.
Crowding also complicates correcting the bite problem with braces: As with the eruption phase, there's no available room for orthodontic movement. One solution that may arise after a detailed examination is to open up space on the jaw by removing some of the teeth.
Planning this kind of tooth extrication requires careful forethought with the end in mind—ultimately, the dental providers involved want the resulting appearance after braces to look as natural as possible. For that reason, dentists usually choose teeth for extraction that are outside of the "smile zone" (the teeth visible while smiling) like premolars and molars.
Additionally, dentists are concerned about bone loss after extracting the teeth. Bone often diminishes around empty tooth sockets, especially if those sockets were damaged during extraction. This loss in bone can weaken the jaw structure and cause significant problems while moving teeth with braces.
To avoid this, dentists take great care during tooth removal not to damage the socket. Additionally, they may place a bone graft within the socket immediately after removing the tooth, especially if the space will remain vacant for a significant period of time. A bone graft serves as a scaffold upon which new bone cells can form and accumulate.
After the extractions, the orthodontist may then proceed with correcting the bite. Patients may also need some form of prosthetic teeth to fill in the spaces while wearing braces. Often prosthetic teeth can be incorporated with the braces for a more natural look. After braces, any remaining gaps may require further restoration, either with dentures, bridges or, later in adulthood, dental implants.
Complex bite problems like crowding pose unique challenges in correcting them. But using techniques like tooth extraction can help achieve a successful and satisfactory outcome.
If you would like more information on treatments for bite problems, 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.”
The worst outcome of periodontal (gum) disease is tooth loss—but it isn't the only form of misery you might suffer. One of the more troublesome results associated with gum disease is gum recession.
Normal gum tissue covers teeth from just above the visible crown to the roots, providing protection against bacteria and oral acid similar to the enamel on the crown. But advanced gum disease can weaken these tissues, causing them to pull away or recede from the teeth.
Not only can this diminish your smile appearance, but the exposed areas are more susceptible to further disease and painful sensitivity. And it certainly can accelerate tooth loss.
But there are some things we can do to reduce the harm caused by gum recession. If we're able to diagnose and treat a gum infection early while the gums have only mildly receded, the tissues could stabilize and not get worse.
The chances for natural regrowth are unlikely, especially the more extensive the recession. In such cases, the gums may need some assistance via plastic periodontal surgery. Surgeons reconstruct gum tissues by grafting like tissues to the area of recession. These grafts serve as a scaffold for new tissues to gradually grow upon.
There are two general types of grafting procedures. One is called free gingival grafting. The surgeon completely removes a thin layer of skin from elsewhere in the mouth (such as the palate), then shapes and attaches it to the recession site. Both the donor and recession sites heal at approximately the same rate, usually within 14-21 days. This procedure replaces missing gum tissue, but doesn't cover exposed tooth roots to any great extent.
In cases of root exposure, dentists usually prefer another type of procedure, known as connective tissue grafting. The donor tissue is usually taken again from the palate, but the design of the surgery is different. A flap of tissue at the recipient site is opened so that after the connective tissue from the palate is placed at the recipient site to cover the exposed roots, the flap of tissue covers the graft to provide blood circulation to the graft as it heals.
Both kinds of procedures, particularly the latter, require detailed precision by a skilled and experienced surgeon. Although they can successfully reverse gum recession, it's much better to avoid a gum infection in the first place with daily oral hygiene and regular dental care.
If you would like more information on treating gum recession, 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 “Periodontal Plastic Surgery.”
QB sensation Johnny Manziel has had a varied career in professional football. After playing two seasons for the NFL Cleveland Browns, he quarterbacked for a number of teams in the Canadian Football League. More recently, he joined the Zappers in the new Fan Controlled Football league (FCF). But then with only a few games under his belt, he was waylaid by an emergency dental situation.
It's unclear what the situation was, but it was serious enough to involve oral surgery. As a result, he was forced to miss the Zappers' final regular-season game. His experience is a reminder that some dental problems can't wait—you have to attend to them immediately or risk severe long-term consequences.
Manziel's recent dental problem also highlights a very important specialty of dentistry—oral surgery. Oral surgeons are uniquely trained and qualified to treat and correct a number of oral problems.
Tooth extraction. Although some teeth can be removed by a general dentist, some have complications like multiple roots or impaction that make regular extractions problematic. An oral surgeon may be needed to surgically remove these kinds of problem teeth.
Disease. Oral surgeons often intervene with diseases attacking areas involving the jaws or face. This includes serious infections that could become life-threatening if they're not promptly treated by surgical means.
Bite improvement. Some poor bites (malocclusions) arise from a mismatch in the sizes of the jaws. An oral surgeon may be able to correct this through orthognathic surgery to reposition the jaw to the skull. This may compensate for the difference in jaw sizes and reduce the bite problem.
Implants. Dental implants are one of the best ways to replace teeth, either as a standalone tooth or as support for a fixed dental bridge or a removable denture. In some cases, it may be better for an oral surgeon to place the implants into a patient's jawbone.
Reconstruction. Injuries or birth defects like a cleft lip or palate can alter the appearance and function of the face, jaws or mouth. An oral surgeon may be able to perform procedures that repair the damage and correct oral or facial deformities.
Sleep apnea. Obstructive sleep apnea is usually caused by the tongue relaxing against the back of the throat during sleep and blocking the airway. But other anatomical structures like tonsils or adenoids can do the same thing. An oral surgeon could address this situation by surgically altering obstructing tissues.
It's likely most of your dental care won't require the services of an oral surgeon. But when you do need surgical treatment, like Johnny Manziel, these dental specialists can make a big difference in your oral health.
If you would like more information about oral surgery, please contact us or schedule a consultation.
Losing teeth can make it more difficult to eat, not to mention the effect it can have on your smile. But that could be just the beginning of your problems. Missing teeth can contribute to extensive bone loss within your jaws and face. Here's why.
Bone is like any other living tissue—cells develop, function and eventually die, and new cells take their place. Forces generated during chewing stimulate this new growth, helping the jawbone maintain its normal volume and density.
But you lose this stimulus when you lose teeth. This can cause a slowdown in bone cell regrowth that can eventually diminish bone volume. And it can happen relatively quickly: you could lose a quarter or more of jawbone width around a missing tooth within a year.
As this loss continues, especially in cases of multiple missing teeth, the bone can eventually erode to its base level. This loss of dental function can make chewing more difficult, place more pressure on the remaining teeth and adversely affect facial appearance. It could also prevent an implant restoration to replace missing teeth.
Dentures and other forms of dental restoration can replace missing teeth, but not the chewing stimulus. Dentures in particular will accelerate bone loss, because they can irritate the bony gum ridges they rest upon.
Dental implants, on the other hand, can slow or even stop bone loss. Implants consist of a metal post, typically made of titanium, imbedded into the jawbone at the site of the missing tooth with a life-like crown attached. Titanium also has a strong affinity with bone so that bone cells naturally grow and adhere to the implant's surface. This can produce enough growth to slow, stop or even reverse bone loss.
This effect may also work when implants are combined with other restorations, including dentures. These enhanced dentures no longer rest on the gums, but connect to implants. This adds support and takes the pressure off of the bony ridge, as well as contributes to better bone health.
If you've lost a tooth, it's important to either replace it promptly or have a bone graft installed to help forestall any bone loss in the interim. And when it's time to replace those missing teeth, dental implants could provide you not only a life-like solution, but a way to protect your bone health.
If you would like more information on dental 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 “The Hidden Consequences of Losing Teeth.”
At what age should you begin treating a poor bite? Many might say with braces around late childhood or early adolescence. But some bite problems could be addressed earlier—with the possibility of avoiding future orthodontic treatment.
A crossbite is a good example. In a normal bite, all of the upper teeth slightly cover the lower when the jaws are shut. But a crossbite occurs when some of the lower teeth, particularly in back, overlap the upper teeth. This situation often happens when the upper jaw develops too narrowly.
But one feature of a child's mouth structure provides an opportunity to intervene and alter jaw development. During a child's early years, the palate (roof of the mouth) consists of two bones next to each other with an open seam running between them. This seam, which runs through the center of the mouth from front to back, will fuse during puberty to form one continuous palatal bone.
An orthodontist can take advantage of this separation if the jaw isn't growing wide enough with a unique device called a palatal expander. This particular oral appliance consists of four, thin metal legs connected to a central mechanism. The orthodontist places the expander against the palate and then uses the mechanism to extend the legs firmly against the back of the teeth on both sides of the jaw.
The outward pressure exerted by the legs also widens the seam between the two palatal bones. The body will respond to this by adding new bone to the existing palatal bones to fill in the widened gap. At regular intervals, the patient or a caregiver will operate the mechanism with a key that will continue to widen the gap between the bones, causing more expansion of the palatal bones until the jaw has grown to a normal width.
The palatal expander is most effective when it's applied early enough to develop more bone before the seam closes. That's why it's important for children to undergo bite evaluation with an orthodontist around age 6. If it appears a bite problem is developing, early interventions like a palatal expander could slow or stop it before it gets worse.
If you would like more information on interceptive orthodontics, 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 “Palatal Expanders.”