Composition of teeth, Tissues surrounding the teeth, Dental Charting

Week 3

Apex

The tip of the root

Pulp Cavity

Cavity that is filled with pulpal tissues and is located at the central portion of the tooth. It is also surrounded by dentin

Anatomic root

embedded in the bone of the upper and lower jaws and is covered by cementum

Apical Foramen

small opening that the blood supply (arteries and veins) lymphatic drainage system and the nerve supply enter the tooth into the dental pulp

Anatomic crown

The portion of the tooth that is covered by enamel and visible in the oral cavity

Cusp

A peak of elevation of a tooth located on the occlusal surface of molars and premolars and on the incisal edges of canines

Lobe

A primary developmental center of in the formation of the crown of the tooth

Fissure

A fault that occurs along the developmental groove during the incomplete or imperfect union of two lobes

Pit

a pinpoint depression located at the junction of developmental grooves or fissures. Often the site of dental caries.

Mamelon

a lobe found on the incisal edge of anterior teeth. Usually three in number

groove

a linear depression on the surface of the tooth

ridge

a linear elevation on the surface of a tooth.

Marginal ridges

elevated borders of enamel which form the margins of molars and premolars mesially and distally as well as the lingual surfaces of anterior teeth

fossa

a rounded or irregular depression found on the surface of a tooth

Enamel

hardest tissue of the human body; covers entire crown of teeth. Calcium & phosphorus

Dentin

light yellow substance, makes up largest portion of tooth. Harder than bone, softer than enamel. Located beneath the enamel.

Dentin

70% inorganic matter calcium & phosphorus

cementum

bone like tissue that covers the roots of the tooth made of collagen

periodontal ligament

fibrous tissue that separates the tooth from the bone socket and anchors the tooth to the bone. made of collagen

Cusp of carabelli

a fifth cusp found on the lingual surface of some maxillary first molars

tubercle

small elevation that is produced by an extra formation of enamel