Select the meaning of the underlined word in the following sentence.Apply the gel on the gingival margin around the selected teeth using the blunt tipped applicator included in the package.
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A
Edge
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B
Grease
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C
Incisor
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D
Cavity
The gingival margin means the edge, the precise boundary line where tooth enamel meets gum tissue, critical for periodontal health assessment.
A) Edge
Edge precisely captures margin's anatomical meaning: the boundary line defining transition between structures. Gingival margin specifically denotes the cervical edge where crown meets gingiva, exactly matching edge's boundary definition.
B) Grease
Grease denotes lubricating substance, material unrelated to anatomical boundaries. No conceptual pathway connects lubricants with gum-tooth interfaces.
C) Incisor
Incisors are anterior teeth, specific tooth type rather than anatomical boundary. Gingival margins exist on all teeth including incisors, but margin isn't synonymous with tooth type.
D) Cavity
Cavities denote tooth decay, pathological lesions rather than anatomical boundaries. Gingival margins may be affected by cavities but aren't cavities themselves, structure versus pathology distinction.
Conclusion
Gingival margin denotes anatomical boundary at tooth-gum interface, distinct from grease, incisors, or cavities. Edge alone captures margin's essential character: the precise demarcation line where dental crown transitions to periodontal tissues, critical for clinical assessment and treatment planning.
Topic Flashcards
Click to FlipWhat is the specific term for the line where the gum tissue meets the tooth's surface?
The gingival margin.
In publishing, what do we call the intentionally blank space that runs along the binding edge of a book's pages?
The gutter margin
If an investment account falls below a certain value, triggering a requirement to deposit more funds, what is that trigger point called?
The maintenance margin.
When a pathologist examines excised tissue, what do they call the outer boundary that must be clear of cancerous cells for a positive prognosis?
The tumor margin.
In a formal debate, succeeding by a very small measure of votes or points is often called winning by a what?
A razor-thin margin.
Can "margin" refer to the amount by which something is surpassed or exceeded?
Yes