Dentistry Chapter 25 Can Visualized Being Divided Into Arrangement

Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 1

Digital Imaging

Chapter 25

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Slide 2

Learning Objectives

Lesson 25.1: Digital Imaging

1. Define the key terms associated with digital

imaging.

2. Describe the purpose and use of digital

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Slide 3

Learning Objectives

Lesson 25.1: Digital Imaging (Cont.)

7. Describe the patient and equipment

preparations required for digital imaging.

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 4

Introduction

Purpose

To present the basic concepts of digital imaging

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Slide 5

Basic Concepts

Used to record radiographic images

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Slide 6

Terminology

Analog image

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 7

Terminology (Cont.)

Direct digital imaging

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Slide 8

Purpose and Use

To generate images that can be used in the

diagnosis and assessment of dental disease

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Slide 9

Purpose and Use (Cont.)

To evaluate growth and development

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 10

Fundamentals

Digital imaging

A method of capturing an image using a sensor,

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Slide 11

Radiation Exposure

Digital imaging requires less x-radiation

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Slide 12

Equipment

X-ray unit

Sensor

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 13

X-Ray Unit

Most digital imaging systems use a

conventional dental x-ray unit as the x-radiation

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Slide 14

Sensor

A small detector that is placed in the mouth of

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Slide 15

Sensor (Cont.)

Most popular types of direct sensor

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 16

Charge-Coupled Device (CCD)

The most common image receptor used in

dental digital imaging

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Slide 17

Charge-Coupled Device (CCD) (Cont.)

The x-ray photons that come into contact with

the CCD cause electrons to be released from

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Slide 18

Complementary Metal Oxide Semiconductor/

Active Pixel Sensor (CMOS/APS)

One manufacturer uses a CMOS/APS sensor

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 19

Computer

Used to store the incoming electronic signal

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Slide 20

Types of Digital Imaging

Direct digital imaging

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Slide 21

Direct Digital Imaging

Components include an intraoral dental x-ray

unit, a sensor, and a computer with imaging

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 22

Indirect Digital Imaging

Components include a CCD camera and a

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Slide 23

Storage Phosphor Imaging

A wireless digital imaging system

A reusable imaging plate coated with phosphors is

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Slide 24

Step-by-Step Procedures

Intraoral sensor preparation

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 25

Step-by-Step Procedures (Cont.)

It is critical to refer to the manufacturer–

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Slide 26

Intraoral Sensor Preparation

Each sensor is sealed and waterproofed.

The sensor must be covered with a disposable

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Slide 27

Intraoral Sensor Placement

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Dental Radiography: Principles and Techniques, 5th Edition

Chapter 25 Student Handout

Slide 28

Advantages of Digital Imaging

Superior gray-scale resolution

Reduced exposure to x-radiation

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Slide 29

Disadvantages of Digital Imaging

Initial setup costs

Image quality

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Slide 30

Questions?

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