Bleeding on Interdental Brushing Index (BOIB) the tooth surface with a periodontal probe. d. The free gingiva also forms the soft tissue wall of the gingival sulcus. e. The free gingiva meets the tooth in a thin, rounded edge called the gingival margin.
Bleeding on Interdental Brushing Index (BOIB)the tooth surface with a periodontal probe.d. The free gingiva also forms the soft tissue wall of the gingival sulcus.e. The free gingiva meets the tooth in a thin, rounded edge called the gingivalmargin.