Dental Procedure, Pocket Depth Reduction
As the bacteria that cause periodontal disease release toxic substances, they trigger the breakdown of gum and bone. The gum then separates from the teeth, forming gaps that are called periodontal pockets. Bacteria settle in these pockets and because they cannot be removed by the patient's daily oral hygiene, they continue to accumulate and reproduce. Without proper treatment, the bacteria will continue to populate these pockets, creating further gum and bone destruction.
The first step in the treatment of periodontal disease involves the removal of the bacteria that inhabit the periodontal pockets in the form of plaque and tartar. The removal of the pocket irritants, scaling and root planing is combined with oral hygiene instructions that are aimed at improving the patient's ability to control plaque and avoid bacteria from re-infecting the periodontal pockets. Several weeks after completion of scaling and root planing, a periodontal re-evaluation should be completed to assess the healing response. If the periodontal pockets do not reduce to below 4 mm and the gums are still unhealthy, surgical treatment may be indicated.
Pocket depth reduction is a term used for a series of different surgical procedures (gingivectomy, flap surgery, osseous surgery). The purpose of these procedures is to gain access to the root surface to effectively remove calculus and to reduce the size of the pockets to help prevent bacteria from settling in.
What to Expect
Pocket depth reduction is done in the dentist's office with local anesthesia (lidocaine). After lifting the gum back, the bacterial plaque and tartar are removed from the root surfaces. It also may be necessary to remove the infected gum tissue and to smooth the bone surface. Stitches (sutures) are placed to aid in healing. The stitches are usually removed five to ten days after the surgery. Follow-up appointments are scheduled as necessary to evaluate healing and plaque control.
Post-surgical discomfort may last a few days and is usually minimal. It can be easily managed with commonly available over-the-counter medications such as aspirin, acetaminophen, or ibuprofen. Patients can expect to follow their normal routine the day after surgery. A dentist will provide special instructions related to diet, exercise, and medications.
After pocket depth reduction, patients may experience heightened tooth sensitivity. This is temporary and usually resolves within a few weeks. There are chemical aids available that help reduce sensitivity.
Some people also may experience looser teeth after periodontal surgery. This also is a transient finding that occurs as part of the normal healing process. With proper plaque control and bite adjustment, the teeth usually tighten up in a few weeks.
Another concern after pocket depth reduction is that the teeth may appear longer and that there are spaces in between the teeth. Actually, longer teeth are the result of periodontal disease, not of periodontal surgery. As periodontal disease infects and destroys the bone that encases the roots, the root surfaces become exposed. They do not appear exposed because they are covered by the inflamed, swollen gums that form the periodontal pocket. Without proper treatment, the periodontal pockets continue to deepen, giving way to more infection, bone loss, and eventually tooth loss and systemic complications.
There are treatments that can help improve esthetics after periodontal treatment. In addition to periodontal plastic surgery procedures, orthodontic tooth movement (braces) or restorative treatment (crown and bridges) can help create a more pleasing smile line.
Benefits
If periodontal pockets do not resolve after scaling and root planing, a dentist may recommend pocket depth reduction. Whether a dentist performs a gingivectomy, periodontal flap surgery, or osseous surgery, the patient will benefit from the reduction in pocket depth and the reattachment of the gums to the root surface. Pocket depth reduction, when followed by supportive periodontal treatment, is a predictable procedure that can help keep teeth healthy and reduce the risk of serious health problems related to periodontal disease. If a general dentist does not frequently do surgeries, he or she may refer the individual to a periodontist that specializes in this technique.
By Laura Minsk, DMD
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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