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Effect of Splint Placement on Black-pigmented Bacteroides and Spirochetes in the Dental Plaque of Beagle Dogs

1984; SAGE Publishing; Volume: 63; Issue: 11 Linguagem: Inglês

10.1177/00220345840630110601

1544-0591

F.H.M. Mikx, D Ngassapa, F.M.J. Reijntjens, Jaap C. Maltha,

Streptococcal Infections and Treatments

The gingival microbiota in beagle dogs was investigated during a period of 42 days after the placement of continuous wire and arch bar splints. The splints were found to induce an increase in helicoidal-shaped micro-organisms and black-pigmented Bacteroides. Two different asaccharolytic Bacteroides types were isolated and tentatively identified as B. gingivalis and B. asaccharolyticus. In addition, B. intermedius- like organisms were isolated. The last two species were observed only after splint placement. The local accumulation of helicoidal-shaped micro-organisms in the epithelial tissue rather than in the micro-ulcerations was regarded as an indication of an active role for these spirochetes in the disease process. The observed shift toward tissue-invading and potentially pathogenic micro-organisms after splinting stresses the need for antimicrobial measures during splint placement in order to minimize periodontal destruction.