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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

Dental Emergency And Acute Perio Conditions

Acute periodontal conditions are a set of rapid-onset ailments that affect the oral cavity. As opposed to gingivitis or periodontitis, which are chronic infections, these conditions can be associated with pain or discomfort, and may have immediate systemic manifestations. The symptoms of acute periodontal conditions can be so severe as to create a dental emergency Gingival Abscess

An abscess is a gathering of pus in an infected area. A gingival abscess is a painful swelling of the gum that may appear to be red and shiny. It is tender to touch and can have pus draining from it. It can be caused by bacterial plaque or a foreign object embedded in a sensitive area. Treatment involves draining the pus and cleaning the abscess thoroughly. The area needs to be numbed for patient comfort, and if promptly treated, gingival abscesses should not leave any scarring or long-term complications.

Periodontal Abscess

A periodontal abscess exhibits similar signs and symptoms as a gingival abscess, but with the infection involving the bone and tissues that support the tooth. The involved tooth can become mobile and sensitive to touch due to rapid bone loss around it. To treat a periodontal abscess, the area needs to be numbed and the abscess drained. The tooth may need to be scaled in order to remove the irritants that caused the infection. It may be necessary to irrigate the abscess with special antimicrobial solutions or to take systemic antibiotics. The tooth may need to be adjusted so that the bite is more comfortable. If the abscess is severe, it may require surgical treatment or even removal of the tooth. A thorough periodontal evaluation is recommended after a dental emergency treatment to identify other possible problem areas.

Periodontal/Endodontic Abscess

This is a combined infection of the gum, bone, and the nerve in the root canal of the tooth. It can be caused by a gum infection that progressed to the tip of the tooth, infecting the nerve in the root canal, or by a nerve infection that is draining through the gum tissue. Either way, the signs and symptoms are the same as with a periodontal or gum abscess. This type of periodontal treatment may include periodontal (as above) and/or root canal therapy.

Acute Necrotizing Ulcerative Gingivitis (ANUG)

Painful ulcers that bleed easily characterize this generalized, acute condition of the gums. Bad breath can also be present, and systemic manifestations include fever and lymph node enlargement. ANUG is associated with stress, smoking, poor nutrition, and people with immunodeficiencies (including HIV). Untreated ANUG can progress to NUP (necrotizing ulcerative periodontitis), in which there is bone loss around the teeth and eventually tooth loss. Treatment of ANUG includes a cleaning of the teeth and irrigation of the gums. Plaque control is very important after initial treatment. If it is difficult to brush or floss, oral rinses may be prescribed. Antibiotic treatment may be necessary if there is systemic involvement such as fever.

Herpetic Gingivostomatitis

This is another generalized acute condition of the gums and soft tissues of the mouth. It is an infection caused by the herpes simplex virus. There may be multiple ulcers and fever. Swollen lymph nodes and malaise may also be associated with herpetic gingivostomatitis. This condition is self-limiting and resolves in 10 to 15 days. For patient comfort, treatment includes application of a numbing agent (topical anesthetic) and a thorough cleaning of the ulcers. This is followed by oral hygiene instructions and proper nutritional intake information. Under some circumstances, antiviral medications may be prescribed. Herpetic gingivostomatitis is contagious, and intimate contact should be avoided during the healing period.

Pericoronitis

This is an inflammation and infection of the tissues that cover the chewing surfaces of the teeth that are not fully erupted. The gums in that area can be red, swollen, and painful to touch. It also may be difficult to open the mouth. In addition, there can be a discharge of pus. Like with all other infections, pericoronitis can spread and create further systemic complications like lymph node enlargement, fever, and malaise. Pericoronitis is treated with a thorough cleaning and irrigation of the affected area. It may be necessary to surgically reshape the gum around the partially-erupted tooth or to remove the tooth. Antibiotic treatment also may be necessary.

Acute periodontal conditions may be manifestations of pre-existing periodontal problems that result in an acute problem and a dental emergency. The best way to prevent dental emergencies is to maintain oral health and to visit your dental care provider routinely for examinations.

By Laura Minsk, DMD

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