Periodontics · single question
What is the correct treatment to CORRECT A BLACK TRIANGLE (open gingival embrasure)?
Show answer and explanation
Correct answer: B. IPR (interproximal reduction) and cosmetic bonding/composite
✓ B) IPR (interproximal reduction) and cosmetic bonding/composite are the treatments.
Black triangles (open gingival embrasures) occur when: (1) Loss of interdental papilla (periodontal disease, surgery); (2) Triangular-shaped teeth; (3) Post-orthodontic treatment. Correction methods: IPR (interproximal reduction) reshapes the contact point apically, making teeth appear more rectangular → papilla appears to fill the space better. Cosmetic bonding/composite veneers reshape the proximal surfaces to close the embrasure. Porcelain veneers can also be used. These are conservative, reversible to some extent.
Black triangles (open gingival embrasures) occur when: (1) Loss of interdental papilla (periodontal disease, surgery); (2) Triangular-shaped teeth; (3) Post-orthodontic treatment. Correction methods: IPR (interproximal reduction) reshapes the contact point apically, making teeth appear more rectangular → papilla appears to fill the space better. Cosmetic bonding/composite veneers reshape the proximal surfaces to close the embrasure. Porcelain veneers can also be used. These are conservative, reversible to some extent.