Posts for: May, 2015
There’s only one way to effectively halt the progressive damage of periodontal (gum) disease — completely remove the bacterial plaque and hardened deposits (calculus) from above and below the gum line that are causing the infection. Although we can accomplish this in most cases with hand instruments called scalers, ultra-sonic equipment or both, some cases may require periodontal surgery to access and clean deeper “pockets” of infection.
As this damaging disease progresses, the supporting bone dissolves and the gum tissues will begin to detach from a tooth, leaving an open space known as a “periodontal pocket.” Besides plaque and calculus pus may also form as a result of the infection. All of this material must be removed from the pocket before healing and, hopefully, tissue reattachment can begin.
Shallow pockets near the gum line are usually accessed and cleaned with hand instruments. But deeper pockets (5 millimeters or greater in depth) may require a surgical procedure to completely clean the area also allowing for regenerative procedures to be done to regain attachment. This will reduce the depth of the periodontal pockets that will make them more accessible for future cleanings and maintenance. Flap surgery is a common type of such a procedure: a small opening (similar to the flap of a letter envelope) is surgically created in the gum tissue to expose the area of infection around the tooth root and bone.
There are also other types of periodontal surgery for repairing and stimulating regeneration of damaged gum tissues. Using grafts or other enhancements, these plastic surgical techniques are especially useful where gum tissues have receded above the natural gum line, leaving more of the underlying tooth below the enamel exposed to disease. These procedures have become more effective in recent years with the development of specialized technologies called “barrier membranes” and biologic growth factors. These materials have allowed bone grafts to be more successful as this technology is engineered for targeted tissue growth and repair, and then dissolve at an appropriate point in the regeneration process.
Periodontal surgery isn’t appropriate for every situation. Still, these procedures do play an important role for many patients to put a halt to the damage caused by gum disease.
If you would like more information on surgical procedures for 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 “Periodontal Surgery: Where Art Meets Science.”
X-rays are an important diagnostic tool in dentistry because of their ability to penetrate and pass through body tissues. Because they penetrate at different speeds depending on tissue density (shorter and thus darker on exposed film for soft tissues, longer and lighter for hard tissues like bone or teeth), we’re able to detect decay which appear as dark areas on x-ray film.
Without x-rays, the early detection and diagnosis of dental problems would be quite difficult. But despite its obvious benefits, it’s still a form of released energy that exposes patients to a certain amount of radiation. Since the potential health risk from radiation depends on the amount released (the dosage) and for how long and often a person is exposed, we must determine if the dosage and frequency from dental x-rays is a cause for concern.
It’s a common misconception to view any radiation exposure as dangerous. The truth is, however, we’re all exposed daily to radiation from the natural environment — about 2 to 4.5 millisieverts (the dosage measurement for radiation exposure) a year, or about 10 microsieverts (one-thousandth of a millisievert) every day.
In comparison, radiation exposure from routine dental x-rays is a fraction of this if measured over time. A set of four bitewing images of the back teeth produces 4 microsieverts of radiation, less than half the average daily exposure. One of the most comprehensive x-ray sets, a full mouth series of 18-20 images using “D” speed film, results in an exposure of 85 microsieverts, equaling about a week of normal radiation exposure.
These thoroughly researched rates help demonstrate that regular dental x-rays are relatively safe. What’s more, x-ray technology has continued to advance since first used in the mid-20th Century. With innovations in film and digital processing, today’s equipment produces only 80% of the radiation exposure of earlier machines. In effect, we’ve increased our capabilities to more accurately detect and diagnose issues through x-rays, while lowering the amount of radiation exposure.
Of course, a person’s annual exposure rate may differ from others. If you have concerns for yourself or your family about x-ray radiation exposure, please feel free to discuss this with us. Our primary goal is to improve your oral health without undue risk to your health in general.
If you would like more information on x-ray diagnostics and safety, 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 “X-Ray Frequency and Safety.”
Last year, over 1.5 million people heard the words no one wants to hear: “You have cancer.” While only a small portion of those — about three percent — were diagnosed with oral cancer, their survival rate isn’t as good as with other types of cancers: 58% five years after diagnosis.
Here, then, are some things you should know about this deadly disease.
Oral cancer is an “equal opportunity” disease. People from all walks and stations of life experience oral cancer. The disease has caused the untimely deaths of Ulysses S. Grant, Babe Ruth and George Harrison, one of the original Beatles. However, you don’t have to be prominent or famous to acquire oral cancer: it can strike anyone at any age, especially people 40 years and older.
Oral cancer is difficult to detect early. Oral cancer usually appears as a small, scaly-shaped sore known as a squamous cell carcinoma. Appearing in the lining of the mouth, lips, tongue or back of the throat, the early stages often resemble other benign conditions such as cold or canker sores, so they’re easily overlooked in the early stages. To increase your chances of an early diagnosis, you should see your dentist about any mouth sore that doesn’t heal in two to three weeks; it’s also advisable to undergo a specific oral cancer screening during your regular dental checkups.
Tobacco and heavy alcohol use are strongly linked to oral cancer. Tobacco smokers are five to nine times more likely to develop oral cancer while snuff or chewing tobacco users are roughly four times more likely than non-tobacco users. People who are moderate to heavy drinkers are three to nine times more likely to develop oral cancer than non-drinkers.
You can reduce your risk for oral cancer. Besides quitting tobacco use and moderating your alcohol consumption, there are other things you can do to reduce cancer risk: a nutritious diet rich in fresh fruits and vegetables; limited sun exposure with adequate sunscreen protection and clothing; and safe sexual practices to avoid contracting Human Papilloma Virus (HPV16), strongly linked to oral cancer. And above all, practice effective, daily oral hygiene with regular dental cleanings and checkups.
If you would like more information on prevention and treatment of oral cancer, 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 “Oral Cancer.”
Considering the costs, many people view replacing a back tooth as less important than a more visible front tooth. They’re rarely seen, so who will notice?
You might, eventually. A missing back tooth can set off a chain reaction of problems that can affect your overall dental health. Besides playing an important role in chewing food, back teeth also redistribute most of the chewing force away from the front teeth. Their absence can also affect the bite: adjacent teeth to the missing one will tend to migrate toward the open space, causing them to tip and rotate into an improper position. This can cause an increase in tooth mobility, excessive wear and erosion, and endanger their survival in the long run.
To avoid these and other problems you should consider some form of replacement. Most dentists prefer a dental implant for its life-like appearance and durability, and because its titanium post has a natural affinity with bone. Bone cells will grow around and permanently adhere to the implant, which may stop and even reverse bone loss in some cases.
Implants, though, require a certain amount of bone structure initially to anchor and position properly. If you have inadequate bone and don’t want to bone graft the area, the next best option is a fixed bridge, in which the missing tooth is replaced with an artificial crown known as a pontic. The pontic is fused between two support crowns that are permanently affixed to the natural teeth on either side of the missing tooth (also known as abutments). While fixed bridges restore function and inhibit tooth migration, they require the natural tooth supporting the bridge to be reduced to accommodate the crowns placed on them. This permanently alters them and places them at higher risk for future nerve damage, gum disease and decay.
One final option is a removable partial denture (RPD). Although RPDs restore function and improve appearance, their movement within the mouth may place additional stress on the teeth that hold them in place. This movement over time could damage or loosen them.
We can discuss which option is best for you after a complete dental exam. The important thing, though, is to replace the back tooth as soon as possible — doing nothing could cost you much more in the long run.
If you would like more information on tooth replacement, 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 “Replacing Back Teeth.”