Which statement correctly describes supragingival and subgingival terms?

Which statement correctly describes supragingival and subgingival terms?

• A. They refer to tooth color
• B. Supragingival means above the gumline, subgingival means below it
• C. Supragingival means below the gumline, subgingival means above it
• D. They refer to the age at which teeth erupt

Answer: (B)

These terms describe location in relation to the gumline. Supragingival means above the gumline, the portion of the tooth that you can see and clean above the gingival margin. Subgingival means below the gumline, inside the gingival sulcus or pocket, where access is more limited. This distinction guides how we clean and treat: supragingival areas are cleaned and polished above the gum margin, while subgingival areas require careful instrumentation below the margin to address deposits and periodontal health. They are not about tooth color or eruption age.

These terms describe location in relation to the gumline. Supragingival means above the gumline, the portion of the tooth that you can see and clean above the gingival margin. Subgingival means below the gumline, inside the gingival sulcus or pocket, where access is more limited. This distinction guides how we clean and treat: supragingival areas are cleaned and polished above the gum margin, while subgingival areas require careful instrumentation below the margin to address deposits and periodontal health. They are not about tooth color or eruption age.