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Bacterial penetration in the apical pocket wall of advanced human periodontitis
Author(s) -
Frank R. M.
Publication year - 1980
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.1600-0765.1980.tb00315.x
Subject(s) - junctional epithelium , connective tissue , epithelium , periodontitis , cell junction , gingival and periodontal pocket , microbiology and biotechnology , pathology , bacteria , biology , chemistry , anatomy , cell , medicine , dentistry , biochemistry , genetics
The presence of bacteria in the apical wall of periodontal pockets has been observed in 8 cases of advanced human chronic periodontitis out of a total of 14 patients studied. The apical junctional epithelium and the underlying connective tissue were removed under general anesthesia. Filaments, rodshaped and coccoid microorganisms with predominant Gram‐negative cell walls were observed in the enlarged epithelial intercellular spaces. In the connective tissue, these microorganisms were found among badly damaged cellular fragments and collagen fibrils. Between the apical sub‐gingival plaque and the junctional epithelium of the pocket wall, several layers of polymorphonuclear leukocytes were observed with numerous phagosomes showing engulfed bacteria. Bacterial invasion of the apical wall of the pockets is possible in the final stages of human chronic periodontitis.