Task: Answer Verification
Input (English): Question: Does low-intensity pulsed ultrasound induce osteogenic differentiation of human periodontal ligament cells through activation of bone morphogenetic protein-smad signaling?
Answer: Low-intensity pulsed US effectively induced osteogenic differentiation of human periodontal ligament cells, and the BMP-Smad signaling pathway was involved in the mechanism.
Output (English): yes