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Bacterial bone resorption in advanced cases of human periodontitis
Author(s) -
Frank R. M.,
Voegel J. C.
Publication year - 1978
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.1600-0765.1978.tb00177.x
Subject(s) - periodontal fiber , dental alveolus , osteocyte , calcification , chemistry , periodontitis , bone resorption , resorption , dentistry , gingival and periodontal pocket , pathology , microbiology and biotechnology , biology , medicine , osteoblast , biochemistry , in vitro
In advanced cases of human periodontitis with pocket depths over 4 mm, severe tooth mobility and bone loss involving approximately two‐thirds of the alvelor height as assessed radiographyically, numerous Gram negative and Gram postitive filamentous, rodshaped, and coccoid bacteria were seen inflitrating the periodontal ligament, coming into close contact with the alveolar bone surface and even invading superfical osteocyte lacunae. Typical bone resporption occured along the bacterial front. This was characterized by a scattered dissolution of individual apatite crystals denuding corssstriated collagen fibrils which were finally destroyed. In the vicinity of such areas, two types of calculus formation were observed in the ligament. Calcification occurred at the surface and between the microorganisms with entrapped bacterial remnants. The second type of calcification developed on cellular remnants. The presence of microorganisms alongs resorbing alveolar bone surfaces in advanced cases of periodonitis cannot be considered as an artifact.