For population 25 years and over in King City: 1  High school or higher: 96.7%. 2  Bachelor's degree or higher: 31.4%. 3  Graduate or professional degree: 8.0 4 %. Unemployed: 7. 5 7%. Mean travel time to work (commute): 29.1 minutes.
Horizontal fibers (J) attach to the cementum apical to the alveolar crest fibers and run perpendicularly from the root of the tooth to the alveolar bone. Oblique fibers (K) are the most numerous fibers in the periodontal ligament, running from cementum in an oblique direction to insert into bone coronally.
The periodontium, which is the supporting structure of a tooth, consists of the cementum, periodontal ligaments, gingiva, and alveolar bone. Cementum is the only one of these that is a part of a tooth. Alveolar bone surrounds the roots of teeth to provide support and creates what is commonly called a  socket .