Implants · single question
What are the main periodontal ligament fibers involved in resisting occlusal (chewing) loads?
Show answer and explanation
Correct answer: B. Oblique fibers
B) Oblique fibers — CORRECT.
The oblique fibers are the largest group of PDL fibers, running obliquely from cementum to alveolar bone. They are the principal fibers for resisting occlusal (axial/vertical) forces, converting compressive loads into tension on the alveolar bone.
A) Apical fibers: Radiate from the apex; resist tipping and avulsion — not primary for occlusal loads.
C) Gingival fibers: Part of the gingival fiber group, not PDL proper; support the gingival attachment.
D) Horizontal fibers: Resist lateral (tipping) forces — not the primary fiber group for axial loads.
The oblique fibers are the largest group of PDL fibers, running obliquely from cementum to alveolar bone. They are the principal fibers for resisting occlusal (axial/vertical) forces, converting compressive loads into tension on the alveolar bone.
A) Apical fibers: Radiate from the apex; resist tipping and avulsion — not primary for occlusal loads.
C) Gingival fibers: Part of the gingival fiber group, not PDL proper; support the gingival attachment.
D) Horizontal fibers: Resist lateral (tipping) forces — not the primary fiber group for axial loads.