Which statement is true about the described bone regeneration approach?

Which statement is true about the described bone regeneration approach?

• A. Distraction Osteogenesis is used for bone growth in the posterior mandible
• B. Beta-Tricalcium Phosphate is used as a Growth Factor
• C. Collagen Type II is used for Bone Regeneration
• D. Calcium Apatite Crystals Are a Form of Collagen

Answer: (A)

Distraction osteogenesis is used to promote bone growth in the posterior mandible. This approach creates a controlled fracture and then slowly pulls the bone segments apart, stimulating new bone to form in the gap as the segments advance. In the jaw, this method is especially helpful for vertical augmentation so there’s enough height to place dental implants while preserving the surrounding soft tissues and blood supply. The new bone forms as a natural response to mechanical stretch, and with proper latency, distraction, and consolidation phases, it becomes solid enough to support implants later on. The other statements don’t fit bone regeneration in this context. Beta-tricalcium phosphate serves as a scaffold or filler material that supports bone growth but does not itself act as a growth factor. Collagen type II is a major component of cartilage, not bone, so it’s not the primary driver of bone regeneration. Calcium apatite crystals are mineral components that provide stiffness and mineral density but are not collagen, the organic protein framework of bone.

Distraction osteogenesis is used to promote bone growth in the posterior mandible. This approach creates a controlled fracture and then slowly pulls the bone segments apart, stimulating new bone to form in the gap as the segments advance. In the jaw, this method is especially helpful for vertical augmentation so there’s enough height to place dental implants while preserving the surrounding soft tissues and blood supply. The new bone forms as a natural response to mechanical stretch, and with proper latency, distraction, and consolidation phases, it becomes solid enough to support implants later on.

The other statements don’t fit bone regeneration in this context. Beta-tricalcium phosphate serves as a scaffold or filler material that supports bone growth but does not itself act as a growth factor. Collagen type II is a major component of cartilage, not bone, so it’s not the primary driver of bone regeneration. Calcium apatite crystals are mineral components that provide stiffness and mineral density but are not collagen, the organic protein framework of bone.