{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T15:10:34Z","timestamp":1778253034067,"version":"3.51.4"},"reference-count":27,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2012,7,6]],"date-time":"2012-07-06T00:00:00Z","timestamp":1341532800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Invest &amp; Clin Dent"],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>To estimate differences in the prevalence of <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>revotella intermedia<\/jats:italic> and <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>revotella nigrescens<\/jats:italic> in the subgingival plaque of patients with periodontitis (including aggressive and advanced chronic periodontitis) compared to healthy controls, and to search for significant associations with clinical status.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Sixteen patients and 16 healthy controls were enrolled in this study. Interproximal plaque index, oral hygiene index, gingival index, bleeding on probing, probing depth, and clinical attachment level were recorded. Samples of subgingival plaque were taken with paper points from four teeth of each individual and immediately plated on appropriate supplemented Columbia agar. Black pigmented colonies were identified with the Rapid <jats:styled-content style=\"fixed-case\">ID<\/jats:styled-content>32 A system, and further differentiated using matrix\u2010assisted laser desorption ionization\u2013time of flight mass spectrometry. For the statistical analysis, chi\u2010squared test and the Mann\u2013Whitney <jats:italic>U<\/jats:italic>\u2010test were used.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p><jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>revotella nigrescens<\/jats:italic> was isolated from 10 patients and three controls, while <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>.\u00a0<jats:italic>intermedia<\/jats:italic> was isolated from only two patients. <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>.\u00a0<jats:italic>nigrescens<\/jats:italic> was found more frequently in the subgingival plaque of patients (<jats:italic>P\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.029), and was significantly associated with high values of clinical indices (<jats:italic>P\u00a0<\/jats:italic>\u2264<jats:italic>\u00a0<\/jats:italic>0.025). Significant differences for <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>.\u00a0<jats:italic>intermedia<\/jats:italic> were not found.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Periodontitis seems to be associated with increased coloniza\u2010tion with <jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>.\u00a0<jats:italic>nigrescens<\/jats:italic>. Whether or not it is a major pathogen needs to be determined.<\/jats:p><\/jats:sec>","DOI":"10.1111\/j.2041-1626.2012.00129.x","type":"journal-article","created":{"date-parts":[[2012,7,6]],"date-time":"2012-07-06T09:32:31Z","timestamp":1341567151000},"page":"20-25","source":"Crossref","is-referenced-by-count":23,"title":["Association of periodontitis with increased colonization by <i><scp>P<\/scp>revotella nigrescens<\/i>"],"prefix":"10.1111","volume":"4","author":[{"given":"Catalina\u2010Suzana","family":"Stingu","sequence":"first","affiliation":[{"name":"Institute for Medical Microbiology and Epidemiology of Infectious Diseases University of Leipzig Leipzig Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reiner","family":"Schaumann","sequence":"additional","affiliation":[{"name":"Institute for Medical Microbiology and Epidemiology of Infectious Diseases University of Leipzig Leipzig 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