BIOL 221 Lecture Notes - Lecture 8: Periodontal Fiber, Apical Foramen, Hard Tissue
4 Mar 2020
School
Department
Course
Professor
Document Summary
The crown is the upper part of the tooth. It is covered by enamel, which is the hardest substance in the body. The root is the lower part of the tooth. Dentin is another calcified tissue present beneath the enamel of the crown and forming the root of the tooth. Cementum, which is calcified connective tissue, covers the dentin of the root and provides an anchor point for the root within the alveolus. The periodontal ligament consists of connective tissue fibers that anchor the tooth into the alveolus. There is no enamel covering the root. The pulp cavity is a space within the root that houses blood vessels and nerves. These enter and leave via the apical foramen in the root canal. Dental caries are cavities caused by acids produced by bacteria that eat away the enamel. Alveoli of mandible and maxilla (a&p i) Teeth are located in the alveoli of the mandible and maxilla.
