1 Radiation History
CHAPTER LESSON PLAN & OBJECTIVES
Lesson 1.1: Radiation History
1. Define the key terms associated with dental radiation.
2. Summarize the importance of dental images.
CHAPTER TEACHING FOCUS
• Students will have the opportunity to learn about the history of radiation.
Chapter 1: Radiation History 2
CHAPTER PRETEST
Have the students answer these questions prior to covering this chapter to understand where they stand
in relation to the content.
1) What physicist discovered x-rays?
a) Wilhelm Conrad Roentgen
b) W.D. Coolidge c) Otto Walkhoff
d) C. Edmund Kells
2) What term indicates a form of energy carried by waves or a stream of particles?
a) Radiology
b) Fluorescence c) Cathode ray
d) Radiation
3) Who was the German dentist responsible for creating the first dental radiograph?
a) Wilhelm Conrad Roentgen
b) William H. Rollins c) Otto Walkhoff
d) C. Edmund Kells
7) A high-energy radiation produced by the collision of a beam of electrons with a metal target in an
x-ray tube is termed:
a) x-ray.
b) x-radiation. c) radiograph.
d) radiographer.
8) What is the art and science of making radiographs by the exposure of film to x-rays?
a) Radiography
b) X-ray c) Dental radiographer
d) Radiology
9) A picture on a film produced by the passage of x-rays through an object or body is termed:
a) radiology.
b) an x-ray. c) a radiograph.
d) fluorescence.
Chapter 1: Radiation History 3
CHAPTER PRETEST ANSWERS
1) a
Wilhelm Conrad Roentgen, a Bavarian physicist, discovered the x-ray on November 8, 1895.
p. 2
7) b
X-radiation is a high-energy radiation produced by the collision of a beam of electrons with a metal
target in an x-ray tube.
p. 4
Chapter 1: Radiation History 4
Classroom Preparation
Lesson 1.1: Radiation History
INSTRUCTOR PREPARATION
Textbook Objectives Covered
1. Define the key terms associated with dental radiation.
2. Summarize the importance of dental images.
3. List the uses of dental images.
4. Summarize the discovery of x-radiation.
5. Recognize the pioneers in dental x-radiation and their contributions and discoveries.
National Standards Covered
ABHES DAI (Dental Assisting I – Basic)
• Section A: Curriculum, Competencies, Externship and/or Internal Clinical Experience:
• Dental Sciences: Radiography of the Oral Cavity. Courses in radiography are designed to integrate
sites. Supervision and evaluation by faculty is essential for safety and proper instruction. (17.c)
ABHES DAII (Dental Assisting II – Advanced)
• Section A: Curriculum, Competencies, Externship and/or Internal Clinical Experience:
• Dental Sciences: Radiography of the Oral Cavity. Courses in radiography are designed to integrate
CODA Standards for Dental Hygiene Programs
• Standard 2: Educational Program:
• Curriculum content: Dental sciences content must include tooth morphology, head, neck and oral
Lesson Preparation Checklist
• Prepare lecture from TEACH lecture slides available on Evolve.
• Assemble materials and supplies needed for each lesson as indicated below.
Materials and Supplies
• computer
• dental film packets
Chapter 1: Radiation History 5
Classroom Preparation
Lesson 1.1: Radiation History
STUDENT PREPARATION (8 hrs)
1
READ – Textbook (pp. 2, 4)
ANSWER – Textbook
• Quiz Questions: Matching, questions 1-9 (p. 7)
ANSWER – Workbook Module 1: Radiation Basics
• Basic Terminology Crossword Puzzle, questions 1-7 (p. 5)
READ – Textbook (p. 3)
ANSWER – Workbook Module 1: Radiation Basics
• Completion and Short Answer: Use of Dental Images, questions 1-8 (p. 6)
4
ANSWER – Textbook
• Quiz Questions: Matching, questions 10-19 (p. 7)
READ – Textbook (pp. 2-4)
ANSWER – Textbook
• Essay, question 27 (p. 7)
ANSWER – Workbook Module 1: Radiation Basics
• Completion and Short Answer: History Highlights, questions 1, 2 (p. 6)
PREPARE
• Students should research the library or Internet for information regarding Roentgen and the
Chapter 1: Radiation History 6
STUDENT PREPARATION (8 hrs) (Continued)
8
READ – Textbook (pp. 5-6)
ANSWER – Textbook
• Quiz Questions: Ordering, questions 20-25 (p. 7)
ANSWER – Workbook Module 1: Radiation Basics
• Ordering, questions 1-7 (p. 7)
Chapter 1: Radiation History 7
50-Minute Lesson Plan
Lesson 1.1: Radiation History
LECTURE OUTLINE (20 min)
1
KEY TERMS: SLIDES 4-9 (pp. 2, 4)
• Define terms related to radiation.
2
IMPORTANCE: SLIDE 10 (p. 2)
• Explain why dental images are important.
3
• Discuss the many uses of dental images.
X-RADIATION: SLIDES 12-14 (pp. 2-4)
• Discuss the people who discovered x-radiation and the observations each person made.
5
PIONEERS: SLIDES 15-16 (p. 4)
• Discuss pioneers in dental radiation and their discoveries/developments.
X-RAY EQUIPMENT: SLIDES 17-18 (pp. 4-5)
• Describe the historical advances of dental film and dental equipment.
8
DIGITAL IMAGING: SLIDE 21 (pp. 5-6)
• Discuss the discovery and advances of digital imaging.
USES: SLIDE 11 (p. 3)
LEARNING ACTIVITIES (choose one or more to equal 30 min)
1
CREATE (15 min)
• Have each student create index cards for all key terms. These should have a key term on one
side and the definition on the other. Pronounce the key terms for the class.
• Appropriate Settings: Traditional classroom, flipped classroom
3
ANALYZE (15 min)
• Divide the class into small groups, and have each group discuss why a radiograph would aid in
the diagnosis in the following clinical situations:
• A patient comes into the office with severe trauma to the mouth
• A new patient examination
• A periodic oral examination
Chapter 1: Radiation History 8
LEARNING ACTIVITIES (choose one or more to equal 30 min) (Continued)
5
and then opened up for a class discussion.
• Appropriate Settings: Traditional classroom, flipped classroom
REVIEW (15 min)
• Draw a two-column chart on the board. On the left side of the column write the names Otto
Walkhoff, W.J. Morton, C. Edmond Kells, William H. Rollins, Frank Van Woert, and Howard
7
PRESENT (20 min)
• Students will present the summaries about dental practitioners who made contributions to
radiographic imaging they wrote as homework.
• Appropriate Settings: Traditional classroom, flipped classroom
CRITICAL THINKING QUESTION
It is explained to a new patient that it is necessary to take dental radiographs at her new patient
appointment. The patient shows signs of concern and asks why it is necessary to have this
procedure done. How should the dental professional respond to the patient’s questions?
Discussion Guidelines: It is important that the dental radiographer have knowledge of the value and
Chapter 1: Radiation History 9
Assessments
Chapter 1: Radiation History
ASSESSMENTS BY OBJECTIVE
1
Evolve Instructor Resources
• Test Bank: Multiple Choice, questions 1, 2, 10
Workbook Module 1: Radiation Basics
• Basic Terminology Crossword Puzzle, questions 1-7 (p. 5)
• Critical Thinking Questions 2, 4, 6 (pp. 29-30)
4
Evolve Instructor Resources
• Test Bank: Multiple Choice, questions 4, 9
Workbook Module 1: Radiation Basics
• Completion and Short Answer: History Highlights, questions 1, 2 (p. 6)
5
Evolve Instructor Resources
• Test Bank: Multiple Choice, question 5
6
• Completion and Short Answer: History Highlights, question 3 (p. 6)
Evolve Instructor Resources
• Test Bank: Multiple Choice, question 6