What does ?periodontal? mean?
Peri (around) the dontal (tooth) is the tissue that holds the tooth in its bony socket. If you’ve seen a jaw bone (mandible) or the upper bone that holds teeth (maxilla), you noticed sockets in the bone. Teeth are held in these sockets by ligaments and cementum. When dental disease affects tooth ligaments and cementum, the tooth loosens and falls out.