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(a) Mean adherent biofilm level in the three hygienic protocol groups (baseline [B], chlorhexidine [CHX], and vibrating bath with cleaning solution [VBC]) for the buccal side. (b) Mean adherent biofilm level in the three hygienic protocol groups (baseline [B], chlorhexidine [CHX], and vibrating bath with cleaning solution [VBC]) for the palatal side.
