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Microbiota of periodontal pockets losing crestal alveolar bone
Author(s) -
Tanner A. C. R.,
Socransky S. S.,
Goodson J. M.
Publication year - 1984
Publication title -
journal of periodontal research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.31
H-Index - 83
eISSN - 1600-0765
pISSN - 0022-3484
DOI - 10.1111/j.1600-0765.1984.tb00819.x
Subject(s) - dental alveolus , gingival and periodontal pocket , periodontal disease , dentistry , bacteroides , clinical attachment loss , radiodensity , periodontitis , biology , medicine , radiography , bacteria , surgery , genetics
Three adult subjects were selected with moderate to advanced progressing periodontal destruction and generalized gingival inflammation. Progressive disease sites showed radiographic evidence of crestal alveolar bone loss within the previous three months. Darkfield and cultural microbiological samples were taken from both shallow and deep levels within progressing periodontal pockets and inactive control sites in the same individual. The microbiota at shallow and deep subgingival sites within most pockets was similar. W. recta and gram positive rod Type A, however, were elevated in proportions in deep pocket zones. The darkfield and cultural techniques provided different estimates of proportions of organisms in the same sample zone. The darkfield technique was more sensitive for detection of large and curved motile rods, but cultural techniques provided higher counts of fusiform‐shaped species. Using cluster analysis and multiple linear regression, sites associated with recent bone loss were characterized by higher proportions of B. gingivalis , “fusiform” Bacteroides , and small spirochetes, than inactive sites. Inactive pockets contained similar species to progressive disease sites, but in lower proportions. F. nucleatum was isolated in similar proportions from pockets with evidence of recent disease and inactive sites.