Cementum is a specialized calcified substance covering the root of a tooth. The cementum is the part of the periodontium that attaches the teeth to the alveolar bone by anchoring the periodontal ligament. 1 Development.
When pulled tight, this complex band of tissue can cause the spine, hip and knee to lose its natural alignment, and possibly cause some pain or problems with strength movements. The upper medial fibers also blend into the fibers of the thoracolumbar fascia, which means it has a role in low back structure too.
Runners get their IT bands beat up because of the common feature of pronation following fatigue. This pronation causes tibial internal rotation, femoral adduction and internal rotation, and a stretching of the hip abductors, which increases the length and tension applied to the IT band and makes it stupidly unhappy.