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Gingivitis

  • Author: James M Stephen, MD, FAAEM, FACEP; Chief Editor: Steven C Dronen, MD, FAAEM  more...
 
Updated: Jun 03, 2016
 

Background

Gingivitis is an inflammatory process limited to the mucosal epithelial tissue surrounding the cervical portion of the teeth and the alveolar processes. Gingivitis has been classified by clinical appearance (eg, ulcerative, hemorrhagic, necrotizing, purulent), etiology (eg, drug-induced, hormonal, nutritional, infectious, plaque-induced), and duration (acute, chronic). The most common type of gingivitis is a chronic form induced by plaque. Gingivitis is shown in the image below.

Moderate chronic gingivitis. Note that the papilla Moderate chronic gingivitis. Note that the papillae are edematous and blunted. They may bleed with brushing. Note areas of edema overlying some of the root areas. Pallor is seen in these areas. Image courtesy of Robert J. Lindberg, DMD.

Compare the image above to a healthy mouth, below.

Healthy mouth and gingiva. Note the healthy light Healthy mouth and gingiva. Note the healthy light pink color of the gingiva. The intradental papillae are sharp and fill the intradental space. No local edema is present. Image courtesy of Robert J. Lindberg, DMD.

Acute necrotizing ulcerative gingivitis (ANUG, ie, trench mouth) is an acute infectious gingivitis. The term trench mouth was coined in World War I when ANUG was common among trench-bound soldiers.

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Pathophysiology

The most common type of gingivitis involves the marginal gingiva and is brought on by the accumulation of microbial plaques in persons with inadequate oral hygiene. Gingivitis proceeds through an initial stage to produce early lesions, which then progress to advanced disease.

The initial stage of an acute exudative inflammatory response begins within 4 or 5 days of plaque accumulation. Both gingival fluid and transmigration of neutrophils increase. Deposition of fibrin and destruction of collagen can be noted in the initial stage. At approximately 1 week, transition to early lesions is marked by the change to predominately lymphocytic infiltrates. Monocytes and plasma cells also may be present. With time, lesions become chronic and are characterized by the presence of plasma cells and B lymphocytes. As chronic local inflammation progresses, pockets develop where the gingiva separates from the tooth. These pockets deepen and may bleed during tooth brushing, flossing, and even normal chewing. As this persistent inflammation continues, periodontal ligaments break down and destruction of the local alveolar bone occurs. Teeth loosen and eventually fall out.

ANUG is a completely different syndrome caused by acute infection of the gingiva with organisms such as Prevotella intermedia, alpha-hemolytic streptococci, Actinomyces species, or any of a number of different oral spirochetes. ANUG may result in accelerated destruction of affected tissues, as well as local or systemic spread of infection.

Noma (cancrum oris) is a syndrome in which ANUG spreads beyond the gingiva. The infection invades local tissues of the mouth and face.

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Epidemiology

Frequency

United States

Frequency is difficult to determine because of the lack of agreement on measurement criteria. Many people believe that gingivitis begins in early childhood and that 9-17% of children aged 3-11 years have gingivitis. At puberty, prevalence rises to 70-90%. In recent years, periodontal disease, the endpoint of chronic gingivitis, slowly has decreased among adult Americans.

ANUG may be a clinical problem in immunocompromised patients during chemotherapy. Gingivitis and resulting periodontal disease are seen more frequently in patients with either diabetes or HIV.

International

Studies in Australia, Sweden, England, and Switzerland report gingivitis in 48-85% of children aged 3-6 years, but whether this range reflects population differences or whether it is due to different criteria used to define the disease is difficult to know. In adolescence, incidence around the world is comparable to US data (70-90%). ANUG may be found in areas where those at risk, particularly children, face poor living conditions. Recent publications show several cases in areas such as Nigeria, where ANUG and noma were observed in children younger than 14 years.[1]

Mortality/Morbidity

Periodontal disease has been shown in some studies to be an associated factor in coronary artery disease (CAD) and cerebrovascular disease/ischemic stroke.[2, 3, 4, 5] Elevated levels of chronic inflammation (eg, C-reactive protein) have been shown to fall after treatment of periodontal disease. These elevated markers have clear association with vascular disease, so treatment of periodontal disease may theoretically have an impact on CAD and ischemic CNS disease.[6] However, a clear cause-and-effect relationship has not been demonstrated between treatment of periodontal disease and improvement of atherosclerotic diseases or outcomes.[7] A recent study that induced gingivitis in healthy volunteers was associated with a clear increase in inflammatory markers.[8]

A large study that enrolled 805 patients with a first myocardial infarction (MI) and 805 control patients without MI concluded that the risk of a first myocardial infarction was significantly increased in patients with periodontitis. The study found that 43% of MI patients vs 33% of matched controls had mild to severe periodontitis. After researchers controlled for smoking, diabetes, education, and marital status, individuals with periodontitis had a 28% increased risk of MI.[9, 10]

Periodontal disease in pregnancy has been associated with an increase in preterm birth and adverse pregnancy outcomes.[11] However, treatment of periodontal disease in pregnancy has not been shown to improve pregnancy outcomes.[12] Periodontitis coexisting with bacterial vaginosis is associated with higher vaginal bacterial counts.[13] Periodontitis in a person with diabetes has been associated with exacerbation of both conditions.[14, 15] Treatment of periodontitis in persons with type 2 diabetes has improved glycemic control.[16]

Severe periodontal disease, as shown in the image below, may occur.

Severe periodontal disease. Loss of the gingival t Severe periodontal disease. Loss of the gingival tissue is seen, making the teeth appear long. Even more effacement of the papillae is present. Heaped up ridges are observed in the areas overlying the roots. Image courtesy of Robert J. Lindberg, DMD.

Chronic gingivitis leads to tooth loss. ANUG may progress into the local soft tissues of the mouth, resulting in noma or cancrum oris, or may spread hematogenously to any other part of the body.

Sex

See the list below:

  • Gingivitis is slightly more prevalent in males than in females because females tend to have better oral hygiene.

Age

See the list below:

  • Adults are most commonly affected.
  • Children from sub-Saharan regions of Africa may be at risk for ANUG because of poor living conditions.
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Contributor Information and Disclosures
Author

James M Stephen, MD, FAAEM, FACEP Assistant Professor, Tufts University School of Medicine; Attending Physician, Director of Graduate Education, Department of Emergency Medicine, Tufts Medical Center

James M Stephen, MD, FAAEM, FACEP is a member of the following medical societies: American Academy of Emergency Medicine, American College of Emergency Physicians

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

Chief Editor

Steven C Dronen, MD, FAAEM Chair, Department of Emergency Medicine, LeConte Medical Center

Steven C Dronen, MD, FAAEM is a member of the following medical societies: American Academy of Emergency Medicine, Society for Academic Emergency Medicine

Disclosure: Nothing to disclose.

Additional Contributors

Michael Glick, DMD Dean, University of Buffalo School of Dental Medicine

Michael Glick, DMD is a member of the following medical societies: American Academy of Oral Medicine, American Dental Association

Disclosure: Nothing to disclose.

Acknowledgements

Mark W Fourre, MD Associate Clinical Professor, Department of Surgery, University of Vermont School of Medicine; Program Director, Department of Emergency Medicine, Maine Medical Center

Disclosure: Nothing to disclose.

Robert J Lindberg; Special thanks to Robert J Lindberg, DMD, for images and excellent dental care.

References
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Healthy mouth and gingiva. Note the healthy light pink color of the gingiva. The intradental papillae are sharp and fill the intradental space. No local edema is present. Image courtesy of Robert J. Lindberg, DMD.
Moderate chronic gingivitis. Note that the papillae are edematous and blunted. They may bleed with brushing. Note areas of edema overlying some of the root areas. Pallor is seen in these areas. Image courtesy of Robert J. Lindberg, DMD.
Severe periodontal disease. Loss of the gingival tissue is seen, making the teeth appear long. Even more effacement of the papillae is present. Heaped up ridges are observed in the areas overlying the roots. Image courtesy of Robert J. Lindberg, DMD.
 
 
 
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