Fig. 2From: The microbial changes in subgingival plaques of orthodontic patients: a systematic review and meta-analysis of clinical trialsForest plots of comparing the frequencies of four periodontopathogens before and after appliance placement. a The frequency of Aa at first molar; b The frequency of Pg at first molar; c The frequency of Tf at first molar; d The frequency of Pi at first molar; e The frequency of Pi at central incisorBack to article page