Tooth Cross Section Anatomy

Tooth Cross Section Anatomy

The tooth, one of the most complex anatomical structures in the body, is unique to the oral cavity and dental structures. It consists of a crown and one or more roots.

Crown: The crown is the visible part of the tooth in the mouth. It has a pearl white to yellow color depending on the thickness of the enamel, the age of the patient, their oral hygiene, and lifestyle choices. The enamel, the outer layer of the tooth, is extremely hard and durable.

Root: The root is the unseen portion that supports and fastens the tooth in the jawbone. The root is attached to the tooth-bearing bone—the alveolar processes—of the jaws by a fibrous ligament called the periodontal ligament or membrane.

Types of Teeth: The teeth are divided into four quadrants within the mouth, with the division occurring between the upper and lower jaws horizontally and down the midline of the face vertically. Each quadrant contains a medial incisor, a lateral incisor, a canine, two premolars, and between two and three molars.

Function of Teeth: The incisors are used for cutting and biting, the canines are used for gripping, and the premolars and the molars are used for grinding. The main functions of the teeth include chewing food into a bolus that can be easily swallowed for further digestion, giving structure, tissue support, and shape to the face, and aiding in the pronunciation of sounds during speech.

Articulating Surfaces: The articulating surfaces on the most superior part of the crown of the teeth are designed to accommodate the function of the tooth. Therefore the anterior teeth, from the right canine to the left canine, have a single incisive edge that can clamp down upon and tear away at a piece of food, whilst the premolars and molars have cusps, pits, and fissures that are able to grind and mash a mouthful of food so that it is edible.

Tooth Structure: All eight incisors share a general tooth anatomy, consisting of a crown that is continued by the root?. The crown is covered by enamel, while the root is covered by cementum?. The body of the tooth consists almost entirely of dentine which surrounds a central pulp cavity?.

Neurovascular Supply: The teeth receive their blood supply from the anterior superior alveolar arteries, posterior superior alveolar arteries, and inferior alveolar arteries. The nerves supplying the teeth are the superior alveolar nerves (CN V2), and inferior alveolar nerves (CN V3).

In conclusion, the anatomy of the tooth is intricate and multifaceted, with each component playing a crucial role in the overall function and health of the tooth. Understanding this anatomy is fundamental to maintaining good oral health and diagnosing and treating dental conditions.

Tooth Cross Section Anatomy Diagram - Tooth Cross Section Anatomy Chart - Human anatomy diagrams and charts explained. This anatomy system diagram depicts Tooth Cross Section Anatomy with parts and labels. Best diagram to help learn about health, human body and medicine.

Tooth Cross Section Anatomy