| Summary: | Aim: Еvaluation of the species characteristics of subgingival biofilm microbial associations during treatment of children with plaque-induced gingivitis aged 10-14 years.
Materials and methods: The subject of the study were 34 children with plaque-induced gingivitis. Three samples of subgingival biofilm are taken per patient: 1st sample - at the first visit; 2nd sample - two weeks later; 3rd the sample - one month later. Five teeth per child are selected from which a sample is taken for PCR testing for 9 control strains of subgingival microorganisms (A. actinomycetemcomitans, P. gingivalis, T. denticola, T. forsythia, P. intermedia, P. micros, F. nuleatum, E. nodatum, C. gingivalis).
Results: C. gingivalis (green complex) is isolated in all examined children before the start of treatment and is indispensably observed in microbial associations with P. intermedia (orange complex). In other cases, associations with 7-8 microorganisms are observed and in a more complex composition. One month after the start of treatment, no periodontopathogens or only C. gingivallis as a single microorganism was is isolated in more than 55% of the samples examined. Microbial associations are predominantly 2 to 4 microorganisms.
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