Dental Procedure For Dental Recession
Dental recession is a displacement of the gum around the teeth that results in greater tooth exposure and a longer looking tooth. As the gum that protects the root surface of the tooth is lost, not only does it create an esthetic deformity, it makes the tooth more sensitive to changes in temperature (hot and cold), touch, and to proper oral hygiene techniques. The exposed root surfaces also are more susceptible to cavities. Causes of dental recession include:
- Periodontal disease: The bacteria that cause gingivitis can release toxins that injure the gum tissues and create gum recession. Once the gum is affected by gingivitis (see article "Gingivitis"), it is even more susceptible to further dental recession and bone loss. So if the gum is red, swollen, or bleeds when probed, it is more likely to continue receding. Eventually, there may not be enough healthy gum and bone left to protect the tooth and the tooth may need to be removed. If there is less than 2 mm of healthy gum in an area of recession, a dentist may recommend a gum graft to help prevent further receding gums and help protect the tooth.
- Trauma: Medium or hard bristle toothbrushes, brushing too hard, or brushing inappropriately can damage the teeth and the gums. It is very important to use a soft bristle toothbrush when cleaning the teeth, and to follow proper technique. Mechanical trauma to the gums also can be caused by improperly fitting dental restorations or dentures. Fillings that are rough or dentures that are loose or poorly designed can injure the gums and cause them to recede.
Gums also may recede as a result of orthodontic treatment or from manipulation during restorative procedures. To prevent this from occurring, a dentist may recommend gum grafting before orthodontics or restorative treatment.
Gum grafts are indicated if an individual has root sensitivity to touch or temperature changes, if new restorative work will be done in the area of the dental recession, if the roots are susceptible to cavities, or if an individual is having problems following proper plaque control procedures. In addition, gum grafts are cosmetic periodontal procedures that can be performed to enhance smiles if recession has created esthetic problems such as long teeth or exposed roots.
By Laura Minsk, DMD
Periodontal Disease: Preventing Tooth And Bone Loss
The best way to control periodontal disease and to help prevent tooth loss is with early detection and treatment. Three out of four people are afflicted by periodontal disease at some point in their lives, so everyone should be tested. After reviewing a patient's dental and medical history, the dental care provider or periodontist will conduct a thorough clinical intraoral exam called a periodontal charting.
This consists of taking a series of measurements around each tooth. Unless the gums are very inflamed and sensitive, the periodontal charting causes minimal discomfort.
The space between the gum and the tooth is measured using a periodontal probe. This space is called the probing or pocket depth. In a healthy mouth, this space should be between 0 and 3 millimeters.
The amount of recession or loss of gum around each tooth is measured. In healthy mouths, the gum tissue should be at the junction of where the crown of the tooth meets the root. The two measurements (pocket depth and recession) are then added to calculate the amount of attachment loss around each tooth. The greater the amount of attachment loss, the more advanced the periodontal disease.
While completing the periodontal charting, a dentist will evaluate the conditions of an individual's gums. Healthy gums are pale pink, firm, and immobile. The gums should not bleed during the probing exam. Bleeding gums during this exam are a sign of gum inflammation, gingivitis or periodontitis.
The dentist will also measure tooth mobility. Under normal functional conditions, teeth should not move. Tooth mobility is a sign that there has been bone loss around the teeth or that the biting forces are too strong. If so, the dentist may also assess a patient's occlusion, or bite. If the bite has changed or if the forces on the teeth are too strong, there may be an acceleration of bone loss around the teeth.
A full mouth series of X-rays (approximately 20 films) are also indispensable in a periodontal examination.
In addition to identifying areas with cavities, bone infection, tumors, or developmental abnormalities, X-rays help reveal if bone loss has resulted from periodontal disease. The crest of the teeth's supporting bone is normally 2 mm below where the crown of the tooth meets the root. A greater distance indicates a history of bone loss.
Although bacterial samples are not usually taken for diagnosis of periodontal disease , under certain circumstances, it may be necessary to take a bacterial culture from a plaque sample. This is especially valuable to help detect sites at high risk for disease progression or if conventional treatment is not working.
The culture is analyzed in a laboratory for the presence of certain bacteria that are known to contribute to gum disease. Actually, of the more than 300 different types of bacteria normally found in the mouth, there are only about 13 that are known to be associated with causing periodontal disease. After identifying the specific disease-causing bacteria, the laboratory can test to determine what antibiotics they are susceptible to.
Depending on the risk factors (see article " Risk Factors for Periodontal Disease") involved and a person's specific situation, other tests may also be required. Under certain circumstances, a dentist may require diagnostic casts (molds of one's teeth), medical laboratory tests, medical consultation, or genetic testing.
After completing the periodontal examination, the dentist will be able to discuss with the patient the diagnosis, treatment alternatives, potential complications, and expected results. The key to long-term periodontal health is early diagnosis and treatment. Because everyone is at risk of developing periodontitis, everyone should be routinely tested.
By Laura Minsk, DMD