Posts for category: Dental Procedures
As your dental provider, we're always alert for signs of tooth decay or periodontal (gum) disease, the two leading causes of tooth loss. But we're also watching for less common conditions that could be just as devastating.
Root resorption falls into this latter category: it occurs when a tooth's root structure begins to break down and dissolve (or resorb). It's a normal process in primary ("baby") teeth to allow them to loosen and give way when permanent teeth are ready to erupt.
It's not normal, though, for permanent teeth. Something internally or—more commonly—externally causes the root structure to break down. External resorption usually occurs at the neck-like or cervical area of a tooth around the gum line. Known as external cervical resorption (ECR), it can first appear as small, pinkish spots on the enamel. These spots contain abnormal cells that cause the actual damage to the root.
We don't fully understand how root resorption occurs, but we have identified certain factors that favor its development. For example, it may develop if a person has experienced too much force against the teeth during orthodontic treatment. Injury to the periodontal ligaments, teeth-grinding habits or some dental procedures like internal bleaching may also contribute to later root resorption.
Early diagnosis is a major part of effective treatment for root resorption. Because it's usually painless and easily overlooked, resorption is often too difficult to detect in its early stages without x-rays—a good reason for regular dental exams. Beginning spots or lesions are usually small enough to surgically remove the tissue cells causing the damage and then filled with a tooth-colored filling material. If it has advanced further, we may also need to perform a root canal treatment.
At some point, the damage from root resorption can be too great, in which case it might be best to remove the tooth and replace it with a dental implant or similar restoration. That's why catching root resorption early through regular dental exams can give you the edge for saving your tooth.
If you would like more information on diagnosing and treating root resorption, 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 “Root Resorption: An Unusual Phenomenon.”
Periodontal (gum) disease is a bacterial infection, which if left untreated could cause gum recession, bone loss and eventually tooth loss. Caused mainly by plaque left on tooth surfaces from poor hygiene practices, the deeper the infection spreads below the gum line, the more difficult it is to treat.
One possible scenario involves parts of a tooth’s root structure known as furcations. These are branching forks formed during the early development of teeth with multiple roots where they take different paths from the base of the crown. As gum disease spreads around the root it may cause different degrees of bone loss at the point of the branch.
It’s imperative when treating gum disease to uncover and remove any bacterial plaque or calculus (hardened plaque deposits) found, including below the gum line. To address bacterial plaque at the root level, it’s important to first determine if bone loss has involved the furcations (where the roots separate, also referred to as a “furcation invasion”) and to what degree.
We usually classify this degree of involvement in three classes: Class I, the invasion has created a groove in the furcation, but minimal significant bone loss; Class II, the bone loss has extended into the furcation by at least two millimeters; or Class III, the bone loss extends completely from one end of the furcation to the other (or “through and through”).
Depending on the class, cleaning plaque and calculus from furcations and then maintaining them thereafter can be quite challenging. We may need to use specially shaped hand instruments known as scalers or curettes to reach and clean root surfaces, or ultrasonic scalers that use high-frequency vibrations and streaming water to loosen and flush away plaque debris. It may also prove helpful, though limited, to apply antimicrobials or antibiotics to the area to help limit the levels of bacteria.
Disease damage around furcations may also require surgical treatment to encourage new tissue and bone growth in the area. Surgery can also help make the area more accessible to future cleaning and maintenance, both for you and us. Renewed hygiene practices on your part and regular cleaning and checkups with us will help ensure that the situation involving your tooth roots can be kept under control and your tooth preserved for many years to come.
There are a variety of methods for treating periodontal (gum) disease depending on its severity — from routine office cleanings to periodontal surgery. But the goal behind all of them remains the same: remove bacterial plaque and calculus (tartar), the root cause for gum disease, from all tooth and gum surfaces.
The traditional method for doing this is called scaling in which we use special hand instruments (scalers) to mechanically remove plaque and calculus. Scaling and a similar procedure called root planing (the root surfaces are “planed” smooth of plaque to aid tissue reattachment) require quite a bit of skill and experience. They're also time-consuming: full treatment can take several sessions, depending on how extensive the infection has spread.
In recent years, we've also seen a new method emerge for removing plaque: lasers. Commonly used in other aspects of healthcare, lasers utilize a focused beam of light to destroy and remove diseased or unhealthy tissue while, according to studies and firsthand accounts, minimizing healthy tissue destruction to a better degree than traditional techniques. Procedure and healing times are likewise reduced.
Because of these beneficial characteristics, we are seeing their use in gum disease treatment, especially for removing diseased and inflamed tissues below the gum line and decreasing sub-gingival (“below the gums”) bacteria.
Dentists who have used lasers in this way do report less tissue damage, bleeding and post-treatment discomfort than traditional treatments. But because research is just beginning, there's not enough evidence to say laser treatment is preferably better than conventional treatment for gum disease.
At this point, lasers can be an effective addition to conventional gum disease treatment for certain people, especially those in the early stages of the disease. As we continue to study this technology, though, the day may come when lasers are the preferred way to stop gum disease from ruining your dental health.
If you would like more information on treating gum disease, 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 “Lasers Versus Traditional Cleanings for Treating Gum Disease.”
Dental implant technology has advanced at such an astounding rate in recent years that you can now walk into a dentist's office with a problem tooth and out the same day with a new one. Unfortunately, not all dental situations allow for this possibility.
For example, you might be considering an implant many years after losing a tooth. But there's a potential problem: there might not be enough supporting bone. While an implant might still be possible, inadequate bone complicates the matter.
Because implants are essentially tooth root replacements, they require a certain amount of bone for stability and the best attractive outcome. As a general rule, implants need to be surrounded by at least 1.5-2.0 millimeters of healthy bone to support an implant. But you might not have enough if your tooth has been missing for awhile, regardless if you have or haven't worn dentures or other restorations.
That's because bone has a life cycle in which older cells die and newer ones form to take their place. As we chew or bite, the force generated travels up through the teeth to the bone to stimulate this new growth. Without a tooth the bone doesn't receive this stimulus, which can slow the growth rate. Over time the affected bone can lose its volume and density.
If we find you've experienced loss to the point your bone won't support an implant, that doesn't automatically mean this popular restoration is out of the picture. But it will require us first performing a procedure known as augmentation or bone grafting to help rejuvenate some of the lost bone.
With grafting, we place processed bone grafting material in the jaw through a minor surgical procedure to form a scaffold for new bone to grow upon. After several months this can result in several millimeters of new growth maintaining the width of the underlying bone, which in turn may be able to support an implant.
Bone grafting is quite common, often performed at the same time as tooth extraction if there's going to be a time lag before installing an implant. Even if performed later, though, it can successfully rejuvenate lost bone and make it possible for you to take advantage of durable, life-like implants.
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 “Dental Implants after Previous Tooth Loss.”
Gum recession — when the gum tissue covering teeth wears away — is a serious matter. If the roots become exposed you'll not only have increased sensitivity and possible discomfort, your teeth can become more susceptible to decay.
There are a number of reasons for gum recession, including overaggressive brushing and flossing, poor fitting appliances like dentures or braces, or genetics (inheriting a thin gum tissue type or poor tooth position). Perhaps the most common reason, though, is periodontal (gum) disease. Caused by bacterial plaque, a thin film of food particles that builds up on tooth surfaces, the disease weakens the gum tissues around teeth, causing them ultimately to detach and “roll up” toward the roots.
Treating the gum infection by removing the built-up plaque and calculus (hardened plaque deposits) will help stop recession or even reverse it. Â As we remove plaque the infection subsides and the gums cease to be inflamed. If they haven't receded too far they may re-grow and renew their attachment to the teeth.
In other cases, though, the recession may have progressed too far and too rapidly toward root exposure. Gums in this condition may require tissue grafts to the recessed area to create or regenerate new tissue.
Most grafting techniques fall into one of two categories. The first is known as free gingival grafting where a thin layer of skin is removed or "freed" from the roof of the patient's mouth (the palate), shaped and then stitched to the recession site.
The second category is called connective tissue grafting, most often used to cover exposed roots. In this case the donor material is transplanted from the donor site to the recipient site, but the recipient site's tissue covers the donor connective tissue graft as it still maintains a physical attachment to the original location. The recipient site can thus maintain a blood supply, which can result in quicker, more comfortable healing than with free gingival grafting.
Connective tissue grafting does, however, require sophisticated microsurgical techniques, along with the surgeon's in-depth skill and art, to prepare both the donor and recipient sites. Allografts (donor skin from another person) may also be used as a donor tissue and placed beneath the recipient site tissue thereby avoiding a second surgical site.
Gum tissue grafting can be an intense undertaking, but the results can be astounding. Not only will restoring recessed gum tissues give your teeth a new lease on life, it will revitalize your smile.
If you would like more information on treatment for 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.”