Fig. 1

Distribution of papillary marginal attached (PMA) values and hemoglobin concentrations by Perioscreen and their relationships. (A) Distribution of PMA values. (B) Distribution of hemoglobin concentrations. (C) Relationship between PMA value and hemoglobin concentration. Each circle represents the data of a subject. Bars indicate the mean PMA score. Data expressed as the mean ± standard deviation. ***P < 0.001 between the groups.