Mesial – The forward side of the tooth.
The mesial of the tooth is found on the “in between surface” of the tooth next to it.
Distal – The back side of the tooth.
Buccal – The cheek-side of the tooth.May 12, 2018.
Incisors (8 total): The middlemost four teeth on the upper and lower jaws.
Canines (4 total): The pointed teeth just outside the incisors.
Premolars (8 total): Teeth between the canines and molars.
Molars (8 total): Flat teeth in the rear of the mouth, best at grinding food..
Rather than anterior, posterior, medial, and lateral, the cardinal directions when discussing teeth include mesial (toward the dental midline), distal (away from the dental midline), lingual or palatal (toward the tongue or palate, relative to teeth on the mandible or maxilla, respectively), and buccal/labial (toward .
The lower incisor and molar roots are directed obliquely back ward; in addition, the incisor roots are more or less medially directed, and the molar roots are tilted outward..
The roots of the teeth, whether they are single or multiple in number each have two of the three previously mentioned layers in their makeup
The pulp chamber continues down from the crown into the roots and finishes at the apex of the root where there is an opening which allows the structures of the pulp chamber to exit and enter
Dentin makes up the core of the entire tooth that surrounds the pulp, which contains the neurovascular structures
The apical foramen at the root apex is where the neurovascular structures enter the tooth and travel up the root canal to the expanded pulp chamber of the crown
The roots of the tooth vary depending on the type of tooth
Common directional terms used in relation to the teeth and the dental arches include (Figs 1-4 and 1-5):
