Dental biofilm infections – an update

APMIS - Tập 125 Số 4 - Trang 376-384 - 2017
Tove Larsen1, Nils‐Erik Fiehn2
1Department of Odontology; Faculty of Health Sciences; University of Copenhagen; Copenhagen Denmark
2Department of Immunology, and Microbiology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark

Tóm tắt

Teeth are colonized by oral bacteria from saliva containing more than 700 different bacterial species. If removed regularly, the dental biofilm mainly comprises oral streptococci and is regarded as resident microflora. But if left undisturbed, a complex biofilm containing up to 100 bacterial species at a site will build up and may eventually cause development of disease. Depending on local ecological factors, the composition of the dental biofilm may vary considerably. With access to excess carbohydrates, the dental biofilm will be dominated by mainly gram‐positive carbohydrate‐fermenting bacteria causing demineralization of teeth, dental caries, which may further lead to inflammation and necrosis in the pulp and periapical region, i.e., pulpitis and periapical periodontitis. In supra‐ and subgingival biofilms, predominantly gram‐negative, anaerobic proteolytic bacteria will colonize and cause gingival inflammation and breakdown of supporting periodontal fibers and bone and ultimately tooth loss, i.e., gingivitis, chronic or aggressive periodontitis, and around dental implants, peri‐implantitis. Furthermore, bacteria from the dental biofilm may spread to other parts of the body by bacteremia and cause systemic disease. Basically, prevention and treatment of dental biofilm infections are achieved by regular personal and professional removal of the dental biofilm.

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APMIS

Tập 125 Số 4

376-384

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