{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,5]],"date-time":"2025-11-05T20:20:46Z","timestamp":1762374046417,"version":"build-2065373602"},"reference-count":0,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[1995,7,1]],"date-time":"1995-07-01T00:00:00Z","timestamp":804556800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[1995,7]]},"abstract":"<jats:p>T<jats:sc>he occurrence of<\/jats:sc> <jats:italic>Actinobacillus actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Eikenella corrodens, Fusobacterium nucleatum, Campylobacter rectus, Capnocytophaga species<\/jats:italic>, and certain bacterial morphotypes was determined in 18 affected and 18 unaffected sites in 10 localized juvenile periodontitis (LJP) patients, and in 10 affected and 10 unaffected sites in 5 generalized juvenile periodontitis (GJP) patients. The subgingival proportion of the 7 bacterial species was determined by selective and nonselective culturing. The results showed that when considering the pure prevalence of bacteria (&gt; 0%) there were significant differences (<jats:italic>P<\/jats:italic> &lt; 0.05) in the subgingival plaque microflora of the affected sites versus those of the unaffected sites for <jats:italic>P. gingivalis, A. actinomycetemcomitans, P. intermedia, E. corrodens, C. rectus<\/jats:italic>, and <jats:italic>F. nucelatum<\/jats:italic> in LJP, and for <jats:italic>P. gingivalis, P. intermedia<\/jats:italic>, and <jats:italic>F. nucleatum<\/jats:italic> in GJP. The mean proportions of cocci, motile rods and spirochetes were also significantly different (<jats:italic>P<\/jats:italic> &lt; 0.05) in affected sites compared to unaffected sites. <jats:italic>Capnocytophaga<\/jats:italic> sp, <jats:italic>F. nucleatum, P. intermedia<\/jats:italic>, and <jats:italic>E. corrodens<\/jats:italic> were found in more than 75% of affected sites in LJP. When taking the approach that an organism, to be associated with periodontal disease, has to be detected above a certain minimum threshold, the results indicated that bacteria most frequently associated with LJP and GJP in Chile are <jats:italic>P. gingivalis<\/jats:italic> (66% of LJP and 80% of GJP affected sites), and <jats:italic>A. actinomycetemcomitans<\/jats:italic> (44% of LJP and 50% in GJP affected sites). Different bacterial species may be judged to be important in the disease process depending upon whether a pure bacterial prevalence, or a prevalence above a certain detection level, is considered. <jats:italic>J Periodontol 1995;66:559\u2013567<\/jats:italic>.<\/jats:p>","DOI":"10.1902\/jop.1995.66.7.559","type":"journal-article","created":{"date-parts":[[2012,3,20]],"date-time":"2012-03-20T22:48:47Z","timestamp":1332283727000},"page":"559-567","source":"Crossref","is-referenced-by-count":28,"title":["Occurrence of Certain Bacterial Species and Morphotypes in Juvenile Periodontitis in Chile"],"prefix":"10.1002","volume":"66","author":[{"given":"N\u00e9stor J.","family":"L\u00f3pez","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan C.","family":"Mellado","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda S.","family":"Giglio","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gloria X.","family":"Leighton","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[1995,7]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1995.66.7.559","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1995.66.7.559","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T08:49:33Z","timestamp":1760863773000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1995.66.7.559"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1995,7]]},"references-count":0,"journal-issue":{"issue":"7","published-print":{"date-parts":[[1995,7]]}},"alternative-id":["10.1902\/jop.1995.66.7.559"],"URL":"https:\/\/doi.org\/10.1902\/jop.1995.66.7.559","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"type":"print","value":"0022-3492"},{"type":"electronic","value":"1943-3670"}],"subject":[],"published":{"date-parts":[[1995,7]]}}}