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.
Sitting down a lot, bad mechanics, trying to over correct posture, trying to do lower ab work with hyperlordosis, trying to stick your ass out (girls), or trying to puff your chest up (guys) will cause tightness in the hip flexors.