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angularis nigra

space or gap seen at the cervical embrasure, below the contact point of some teeth, when the interdental papilla does not fully enclose the space, leading to an aperture between adjacent teeth
Class type of: mouth disease Q4764028

Facts

2 properties
Subclass of
mouth disease[1]
Anatomical location
Interdental papilla[2]
🏷️ Also known as
en open gingival embrasures en angularis nigra en black triangle de Schwarzes Dreieck (Zahnmedizin) fa سه‌گوش سیاه fr triangle noir interdentaire zh 黑三角 (牙科)
🔖 Identifiers · 1
Image (Wikimedia Commons)
Angularis nigra 2.png ↗

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Subclass of 1
mouth disease
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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). angularis nigra. Retrieved November 9, 2026, from https://4ort.xyz/entity/angularis-nigra
MLA “angularis nigra.” 4ort.xyz Knowledge Graph, 4ort.xyz, 9 Nov. 2026, https://4ort.xyz/entity/angularis-nigra.
BibTeX @misc{4ortxyz_angularis-nigra_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{angularis nigra}}, year = {2026}, url = {https://4ort.xyz/entity/angularis-nigra}, note = {Accessed: 2026-11-09}}
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