Tooth Anatomy Quiz: Learn Crown and Root Parts

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Questions and Answers

What is the function of cementum in tooth anatomy?

It covers the root (correct)

It is the hard outer layer protecting the crown

It connects the tooth to the jawbone

It provides structural support

Which part of the tooth anatomy is responsible for connecting the tooth to the jawbone?

Dentin

Periodontal ligament (correct)

Enamel

Pulp

What is the main function of enamel in tooth anatomy?

Is the hard outer layer that covers the crown (correct)

Provides structural support

Contains blood vessels and nerves

Covers the root

Which part of the tooth anatomy is often described as the core with nerves and blood vessels?

Pulp Signup and view all the answers

What is the role of dentin in tooth structure?

Is the main tooth structure Signup and view all the answers

Which part of tooth anatomy anchors the tooth in the jawbone?

Root Signup and view all the answers

What is the function of the periodontal ligament in tooth anatomy?

Connects tooth to jawbone Signup and view all the answers

What is the function of the cementoenamel junction (CEJ) in tooth anatomy?

It is where the enamel of the crown meets the cementum layer of the root. Signup and view all the answers

Which tissue in tooth anatomy is described as having no vessels, nerves, or cells and is composed of dense minerals?

Enamel Signup and view all the answers

What is the significance of the neck of the tooth in tooth anatomy?

It is where the enamel of the crown meets the cementum layer of the root. Signup and view all the answers

What does the root canal in a tooth anatomy refer to?

The space within the root of the tooth that houses the pulp. Signup and view all the answers

Where does enamel cover in a tooth according to tooth anatomy?

Crown Signup and view all the answers

How many third molars (wisdom teeth) are present in the Universal Numbering System for the canine teeth?

3 Signup and view all the answers

Which tooth is numbered '29' in the Universal Numbering System?

Wisdom tooth (3rd molar) Signup and view all the answers

What is the number of the upper dental arch in the Universal Numbering System?

25 Signup and view all the answers

Which tooth is located between the lateral incisor and first bicuspid in the Universal Numbering System?

Canine (cuspid) Signup and view all the answers

How many central incisors are present in the Universal Numbering System for the upper dental arch?

2 Signup and view all the answers

Study Notes

Tooth Anatomy

The visible part of the tooth above the gum line is called the crown, which is covered in enamel.
The part of the tooth below the gum line, anchoring it in the jawbone, is called the root.

Tooth Structure

The crown is composed of: • Enamel (protective outer layer) • Dentin (main tooth structure) • Pulp (core with nerves and blood vessels)
The root is composed of: • Cementum (covering the root) • Periodontal ligament (connects tooth to jawbone)

Tooth Components

Enamel: the hard, glossy outer layer covering the crown
Dentin: the hard tissue making up most of the tooth, providing structure and support
Pulp: the core of the tooth containing nerves and blood vessels
Cementum: a thin layer covering the outer surface of the tooth roots, playing a role in anchoring the tooth in the jawbone

Tooth Classification

Teeth are not classified as bones

Tooth Anatomy Overview

A tooth has three major parts: crown, neck, and root
A tooth has four major tissues: enamel, cementum, dentin, and pulp

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Description

Test your knowledge on the anatomy of a tooth, focusing on the crown (visible part above the gum line) and the root (part below the gum line). Learn about the enamel, dentin, pulp, cementum, and other essential components that make up a tooth structure.