THE PURPOSE
Of the study was to assess oral microbiocenosis changes in participants of microgravity modeling in a control group and using prophylaxis in the form of a probiotic supplement with 1.0·109 CFU of Streptococcus salivarius strain in one lozenge and a dairy product containing not less than 1·107 CFU of Streptococcus salivarius subsp. thermophilus strain in one gram.
MATERIALS AND METHODS
The study included 15 participants aged 25—40 years from the “Dry Immersion-2018” experiment. Five participants were included in the control group, while 10 participants were divided into 3 prophylactic groups: group I with 3 people (1 glass of dairy after evening teethbrushing and 1 glass of dairy after breakfast and teethbrushing). Group II with 3 people dissolving 1 probiotic lozenge at bedtime after teethbrushing and 1 lozenge after breakfast and teethbrushing. Group III with 4 people tested the synergism of protective streptococcus strains according to the scheme: 1 glass of dairy before nightsleep after teethbrushing and 2 probiotic lozenges under the tongue during the day. Changes were assessed by the dynamics of the Eubiotic Index and the Community Periodontal Index of Treatment Need (CPITN).
RESULTS
A significant deterioration of the periodontal condition was recorded in the control group: a growth of supragingival and subgingival tartar, bleeding gums, and a growth of pathogenic microflora. In all three prophylactic groups, a positive shift was detected in Eubiotic Index. In groups I and II there were no changes on CPITN index scale, and in group III an improvement in periodontal condition was recorded.
CONCLUSION
The probiotic drug showed a positive prophylactic effect and found synergy with the dairy product based on the Streptococcus salivarius subsp. thermophilus strain.