{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T00:43:17Z","timestamp":1760920997783,"version":"build-2065373602"},"reference-count":24,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2007,1,1]],"date-time":"2007-01-01T00:00:00Z","timestamp":1167609600000},"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":[[2007,1]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> The purpose of this study was to compare the results of microbiological RNA\u2010probe analysis after subgingival plaque sampling applying two different strategies.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> In 220 patients, clinical examinations were obtained prior to commencement of therapy for aggressive or generalized severe chronic periodontitis (n = 113), after combined mechanical and antibiotic anti\u2010infective periodontal therapy (n = 43), or because of periodontal pockets despite adequate therapy (n = 64). Subgingival plaque samples were obtained from the three pockets with the deepest probing depths. Two sterile paper points were inserted simultaneously into the periodontal pockets. One paper point from each pocket was put into a separate transport vial; the second paper point was pooled (multiple site test [MT3]) with paper points from each of the two other sampling sites from the respective patient into a transport vial. The content of each vial was analyzed separately for <jats:italic>Actinobacillus actinomycetemcomitans<\/jats:italic>, <jats:italic>Tannerella forsythensis<\/jats:italic>, <jats:italic>Porphyromonas gingivalis<\/jats:italic>, and <jats:italic>Treponema denticola<\/jats:italic> (<jats:italic>Td<\/jats:italic>) with a commercially available RNA\u2010probe test.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> For all tested pathogens, log\u2010transformed numbers of bacteria were higher in pooled samples compared to the mean values for the separate samples (<jats:italic>P<\/jats:italic> \u22640.01). However, for <jats:italic>Td<\/jats:italic> only, statistically significant differences in frequency were seen between the separate samples and MT3. These findings were observed over all samples as well as after evaluation of subgroups separately.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> Pooling of plaque samples increased the bacterial counts per analysis compared to separate samples and thus may increase the probability of detecting existing pathogens. However, this observation only was statistically significant for the frequency of <jats:italic>Td<\/jats:italic>.<\/jats:p>","DOI":"10.1902\/jop.2007.060236","type":"journal-article","created":{"date-parts":[[2007,1,4]],"date-time":"2007-01-04T02:32:33Z","timestamp":1167877953000},"page":"72-78","source":"Crossref","is-referenced-by-count":23,"title":["Two Subgingival Plaque\u2010Sampling Strategies Used With RNA Probes"],"prefix":"10.1002","volume":"78","author":[{"given":"Diana\u2010Maria","family":"Krigar","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jens","family":"Kaltschmitt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J\u00f6rg K.","family":"Krieger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Eickholz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,1]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0757.1994.tb00019.x"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-051X.2002.291107.x"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.1998.tb02419.x"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1976.47.7.373"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.1987.tb00949.x"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.1985.tb01382.x"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1985.56.8.443"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.1993.tb00397.x"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1994.65.9.820"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1999.70.6.574"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2000.71.5-S.867"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2001.72.12.1790"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2004.75.1.169"},{"key":"e_1_2_8_15_1","first-page":"660","article-title":"Microbiologic diagnosis in periodontal therapy. 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