Influence of probiotics on the periodontium, the oral microbiota and the immune response during orthodontic treatment in adolescent and adult patients (ProMB Trial): study protocol for a prospective, double-blind, controlled, randomized clinical trial

Table 1 List of comparators

Arms	Assigned interventions
Active Comparator: Limosilactobacillus reuteri Prodentis®-lozenges (BioGaia)	Dietary Supplement: Limosilactobacillus reuteri Prodentis®-lozenges (DSM 17938, ATCC PTA 5289) Two times per day for 12 weeks
Control Comparator: Control-lozenges (BioGaia)	Dietary Supplement: Control-lozenges (BioGaia) Two times per day for 12 weeks

ISSN: 1472-6831