However, contemporary mechanobiology reveals that the PDL is far more than a passive anatomical cushion.
It functions as an extraordinarily dynamic, highly innervated mechanosensory organ capable of transducing complex masticatory and orthodontic forces into critical biochemical signals that directly govern alveolar bone remodeling and tissue homeostasis.
Published in the International Journal of Oral Science, this comprehensive review delves into the state-of-the-art evidence regarding the macro- and microstructural architecture of the periodontal ligament.
The authors examine the nonlinear, viscoelastic, and poroelastic mechanical behavior of the PDL, detailing how its heterogeneous collagen network, cellular assemblies, and interstitial fluid dynamics dissipate destructive strains.
Crucially, the paper bridges the gap between physics and cellular biology by dissecting the mechanotransduction cascades triggered within periodontal ligament cells under compressive, tensile, and shear loading—illustrating how mechanical stimuli translate into coordinated osteoclastogenesis and osteoblastogenesis.
For periodontists, orthodontists, and dental researchers, this review delivers an indispensable scientific framework to better understand tooth support mechanisms, optimize force delivery in tooth movement, and advance future tissue engineering strategies for functional periodontal regeneration.
📖 Ready to explore the microstructural models, nonlinear biomechanical properties, and cellular mechanotransduction pathways of the periodontal ligament? Click here to read the full article PDF.
