What is the structure that connects cementum to the alveolar bone?

The periodontal ligament is the structure that connects cementum to the alveolar bone. This ligament plays a crucial role in supporting the teeth within their sockets by attaching the cementum, which is the outer covering of the tooth root, to the alveolar bone, which forms the bony structure of the jaw. The periodontal ligament is made up of fibrous connective tissue that acts as a cushion and provides a shock absorber during chewing, while also containing nerve endings and blood vessels that are vital for the health of the tooth and surrounding tissues. Thus, its connection between the cementum and the alveolar bone is essential for maintaining tooth stability and health.