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Flow‐chart of inclusion of participants and study procedures. CDC‐AAP, Centers for Disease Control and Prevention‐American Academy of Periodontology; aMMP‐8, activated matrix metalloproteinase‐8; POCT, point‐of‐care test; BoB, bleeding on brushing; GBoB, gingival bleeding on brushing; TPS, toothpaste slurries; Hb, haemoglobin.
