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Microscopical evaluation of the microflora in relation to necrotizing ulcerative gingivitis in the beagle dog
Author(s) -
Mikx F. H. M.,
Campen G. J.
Publication year - 1982
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.1600-0765.1982.tb01179.x
Subject(s) - beagle , biology , gingivitis , pathology , microbiology and biotechnology , dentistry , medicine , ecology
The microflora associated with necrotizing ulcerative gingivitis (NUG) in beagle dogs was investigated in three comparative studies. In the first study beagle dogs were involved harboring different stages of NUG; in the second and third studies the NUG lesions were induced by topical application of debris from a NUG lesion to the gingiva of dogs which had been pretreated with Kenacort A40 R . The microorganisms of diseased and NUG free sites were compared by microscopy in gram‐stained preparations of supra‐ and subgingival samples. Most bacterial types were observed in all dogs, in diseased and NUG free sites. Distinct quantitative differences were observed for the intermediate spirochetes in the supra‐ and subgingival samples of the diseased sites. The other bacterial types were observed in variable numbers. The fusiforms were found in higher numbers in the subgingival samples of the NUG free animals. A spirillum not described previously was observed especially in relation to inoculated and diseased dogs. It is concluded that the induction of transmissible lesions in beagle dogs offers the possibility for studying the microbial and host factors related to NUG in an animal model: further investigations will aim at the occurrence of spirochetes and spirillae in relation to necrotizing ulcerating gingivitis.