Periodontics · single question
When a soft tissue graft is placed over a tooth (e.g., coronally advanced flap + CTG), what type of attachment is formed between the graft and the tooth?
Show answer and explanation
Correct answer: A. Long junctional epithelium
✓ A) Long junctional epithelium is correct.
When soft tissue grafts (CTG, free gingival graft) are placed over denuded root surfaces, healing occurs primarily via long junctional epithelium (LJE) — a thin epithelial layer that migrates apically along the root surface. True regeneration (new cementum/PDL/bone) does not occur with these procedures. LJE provides a seal but is a repair, not regeneration. This distinguishes it from guided tissue regeneration procedures.
When soft tissue grafts (CTG, free gingival graft) are placed over denuded root surfaces, healing occurs primarily via long junctional epithelium (LJE) — a thin epithelial layer that migrates apically along the root surface. True regeneration (new cementum/PDL/bone) does not occur with these procedures. LJE provides a seal but is a repair, not regeneration. This distinguishes it from guided tissue regeneration procedures.