TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
25 Digital Imaging
CHAPTER LESSON PLAN & OBJECTIVES
Lesson 25.1: Digital Imaging
1. Define the key terms associated with digital imaging.
2. Describe the purpose and use of digital imaging.
3. Discuss the fundamentals of digital imaging.
CHAPTER TEACHING FOCUS
• Students will have the opportunity to learn the purpose, fundamentals, types, and equipment used in
digital imaging.
Chapter 25: Digital Imaging 2
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
CHAPTER PRETEST
Have the students answer these questions prior to covering this chapter to understand where they stand
in relation to the content.
1) A small detector that is placed intraorally to capture a radiographic image is a:
a) sensor.
b) grid. c) panoramic receptor.
d) periapical receptor.
2) Which of the following sensors is a solid-state detector that contains a silicon chip with an electronic
circuit embedded in it?
a) Charge-coupled device
b) Complementary metal oxide
semiconductor/active pixel sensor
c) Charge injection device
d) Digital x-radiation camera
3) Digital imaging uses ________ to produce an image.
a) processing chemistry
b) an electronic sensor and computerized
imaging system
c) an x-ray processor
d) radiographic film
4) Advantages of digital imaging include:
a) color imaging rather than black and white
b) low initial setup costs
c) all sensors can be autoclaved
d) increased speed of image viewing
5) A sensor with a fiber optic cable linked to the computer, placed into the mouth of the patient, and
exposed to x-radiation is an example of:
a) direct digital imaging.
b) phosphor imaging. c) use of the CCD camera.
d) indirect digital imaging.
8) Exposure times are _______ than those required for conventional radiography.
a) 10% to 20% less
b) 50% to 90% less c) 50% to 90% more
d) 10% to 20% more
9) In order to be used for digital imaging, the x-ray unit timer must be adapted to allow exposures in a
time frame of ______ of a second.
a) 1/5
b) 1/10 c) 1/15
d) 1/100
10) The electrons that compose the silicon charge-coupled device (CCD) can be visualized as being
divided into an arrangement of blocks or picture elements known as:
a) pixels.
b) a field arrangement. c) a grid.
d) phosphors.
Chapter 25: Digital Imaging 3
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
CHAPTER PRETEST ANSWERS
1) a
In digital imaging, a receptor that is used to capture an intraoral or extraoral image is called a sensor.
p. 288
7) c
Digital imaging is a technique used to record dental images.
p. 288
Chapter 25: Digital Imaging 4
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
Classroom Preparation
Lesson 25.1: Digital Imaging
INSTRUCTOR PREPARATION
Textbook Objectives Covered
1. Define the key terms associated with digital imaging.
2. Describe the purpose and use of digital imaging.
National Standards Covered
ABHES DAI (Dental Assisting I – Basic)
• Section A: Curriculum, Competencies, Externship and/or Internal Clinical Experience:
• Clinical equipment function and maintenance: Operate dental equipment according to
ABHES DAII (Dental Assisting II – Advanced)
• Section A: Curriculum, Competencies, Externship and/or Internal Clinical Experience:
• Clinical equipment function and maintenance: Operate dental equipment according to
manufacturer’s guidelines and institutional policy. (6.b)
CODA Standards for Dental Assisting Programs
• Standard 2: Educational Program:
• The curriculum must include content at the in-depth level in dental radiology. Students must
CODA Standards for Dental Hygiene Programs
• Standard 2: Educational Program:
Chapter 25: Digital Imaging 5
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
Lesson Preparation Checklist
• Prepare lecture from TEACH lecture slides available on Evolve.
Materials and Supplies
• blank sheets of paper
Chapter 25: Digital Imaging 6
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
Classroom Preparation
Lesson 25.1: Digital Imaging
STUDENT PREPARATION (5 hrs)
1
READ – Textbook (pp. 288-295)
ANSWER – Textbook
• Quiz Questions: Matching, questions 1-8 (p. 297)
2
4
5
READ – Textbook (pp. 290-292)
ANSWER – Textbook
• Quiz Questions:
• True or False, questions 11, 12 (p. 297)
7
READ – Textbook (p. 294)
ANSWER – Textbook
• Quiz Questions: True or False, question 14 (p. 297)
READ – Textbook (p. 289)
ANSWER – Textbook
• Quiz Questions:
• True or False, question 10 (p. 297)
8
REVIEW – Evolve Student Resources
• Additional Case Scenarios
• Review Questions – Self-Study Examination
READ – Textbook (pp. 294-297)
ANSWER – Textbook
• Quiz Questions:
• True or False, questions 13, 15-17 (p. 297)
• Multiple Choice, question 23 (p. 298)
APPLY – Workbook Module 5: Digital Imaging Basics and Normal Anatomy Basics
• Critical Thinking Question 1 (p. 197)
Chapter 25: Digital Imaging 7
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
50-Minute Lesson Plan
Lesson 25.1: Digital Imaging
LECTURE OUTLINE (25 min)
1
&
2
KEY TERMS AND PURPOSE: SLIDES 4-9 (pp. 288-295)
• Define the key terms associated with digital imaging.
• Describe the purpose and use of digital imaging.
LEARNING ACTIVITIES (choose one or more to equal 25 min)
1
&
2
digital imaging system. Bring forward samples from the class and use them to point out the
REVIEW (10 min)
• Go around the room and have each student use one of the key terms in a clinically relevant
sentence in order to define the term. Continue until all terms have been used; if students
become stuck, have the rest of the class offer suggestions.
• Appropriate Settings: Traditional classroom, flipped classroom
5
• Appropriate Setting: Online
REVIEW (15 min)
• Divide the class into groups. Provide pictures of digital imaging equipment or the actual
equipment without names. Then have the groups make Post-it note labels to identify the
equipment or pictures that you have displayed. Then have each group put its labels on the
picture or equipment. The group with the most correct labels wins.
Chapter 25: Digital Imaging 8
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
CRITICAL THINKING QUESTION
Can digital images be used as evidence in lawsuits?
Discussion Guidelines: When digital imaging first appeared on the market, there was a great deal of
concern about the legal implications of the capability of manipulating the digital image. Because the
Chapter 25: Digital Imaging 9
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
Assessments
Chapter 25: Digital Imaging
ASSESSMENTS BY OBJECTIVE
2
Evolve Instructor Resources
• Test Bank: Multiple Choice, question 1
3
Evolve Instructor Resources
• Test Bank: Multiple Choice, questions 2, 3, 6
5
Evolve Instructor Resources
• Test Bank: Multiple Choice, questions 4, 5, 7, 21
6
Evolve Instructor Resources
• Test Bank: Multiple Choice, questions 9, 10, 20
• Test Bank: Multiple Choice, questions 8, 14
• Review Materials (pp. 199-233)
Chapter 25: Digital Imaging 10
TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
Simulations
Chapter 25: Digital Imaging
SIMULATIONS BY OBJECTIVE
Sensor Placement (15 min)
1
Equipment Needed
• beam alignment device
• disposable barrier sleeve
Intraoral Sensor Assembly (15 min)
6
Equipment Needed
• beam alignment device
• disposable barrier sleeve
• receptors
• Demonstrate how to properly assemble the intraoral sensor into the film–holding device.
Intraoral Sensor Placement (15 min)
7
Equipment Needed
• beam alignment device
• disposable barrier sleeve
• sensors