Portland Community College | Portland, Oregon

Course Number:
DA 121
Course Title:
Dental Radiology I (Lab)
Credit Hours:
2
Lecture Hours:
0
Lecture/Lab Hours:
0
Lab Hours:
60
Special Fee:
$24.00

Course Description

Provides an opportunity to practice radiographic techniques on manikins and correlate activities to the DA 120 lecture. Requirement: Admission to the Dental Assisting Program. Prerequisites/concurrent: DA 110, DA 111, DA 116, DA 120, DA 130, DA 131, and DA 140A.

Intended Outcomes for the course

Upon completion of the course students should be able to:

  • Expose, process and mount a full-mouth set of film radiographs taken on a manikin using safe and effective techniques.
  • Expose a full-mouth set of radiographs taken on a manikin using digital technology.
  • Chart and document according to industry standards.

Course Activities and Design

  • This course is presented in a series of lecture and class discussions followed by practical applications of principles in the laboratory. 
  • Laboratory applications provide opportunity to practice intraoral radiographic techniques on manikins and peer-to-peer placement using safe and effective techniques. 

Outcome Assessment Strategies

  1. DA 120: Quzzes, assignments, final, attendance, professional standards
  2. DA 121: lab practicals, final, attendance, professional standards

Course Content (Themes, Concepts, Issues and Skills)

  • History of radiography
  • Uses in dentistry
  • Physical properties of x-radiation
  • Generation of x-rays
  • Parts of the x-ray machine
  • Use of the manikin
  • Intra-oral film
  • Safety protocols and radiation safety equipment
  • Intra-oral exposure techniques
  • Exposure factors
  • Characteristics of a diagnostic film
  • Darkroom equipment and solutions
  • Manual film processing
  • Exposure and processing errors
  • Mounting x-rays
  • Introduction to radiographic landmarks
  • Record keeping
  • Digital radiography
     

COMPETENCIES:

  • Explain the origins of radiography and discuss the impact on medicine and the people using xrays.
  • Describe the physical properties of x-radiation and how it interacts with matter.
  • Describe the components and processes which generate and control x-radiation.
  • Define the parts of the x-ray machine.
  • Describe the characteristics of a variety of sizes and types of x-ray film including recommended storage methods. 6. Describe and use safety protocols and equipment which are required by law.
  • Explain and demonstrate the paralleling technique of intraoral exposure on a manikin using various types of film holders.
  • Explain the characteristics of a diagnostic dental x-ray and use the correct exposure factors to produce diagnostic films using a manikin.
  • Describe the equipment and solutions found in the darkroom.
  • Describe and demonstrate the steps in film processing, and explain the effects of time and temperature on the quality of the image.
  • Demonstrate the ability to correctly place films in the mount for use in diagnosis.
  • Identify normal radiographic anatomical landmarks and normal oral conditions on film at an introductory level.
  • Identify processing errors and explain how to correct them.
  • Record patient data as required for film identification.
  • Demonstrate exposure using digital sensors.
     

Related Instruction

Computation
Hours: 6

  • Expose, process and mount a full-mouth set of film radiographs taken on a manikin using safe and effective techniques.
  • Expose a full-mouth set of radiographs taken on a manikin using digital technology.

  • Explain the characteristics of a diagnostic dental radiograph.
  • Use the correct exposure factors to produce diagnostic films using a manikin. 
  • Describe and demonstrate the steps in film processing.
  • Explain the effects of time, temperature, mA, kVp on the quality of the image.

Communication
Hours: 6

  • Expose, process and mount a full-mouth set of film radiographs taken on a manikin using safe and effective techniques.
  • Expose a full-mouth set of radiographs taken on a manikin using digital technology.
  • Chart and document according to industry standards.

  • Evaluate and verbalize exposing/developing techniques that are correct and incorrect.
  • Document findings orally and identify corrections if necessary. 
  • Document every activity in a practice chart according to industry standards.

Human Relations
Hours: 12

  • Expose, process and mount a full-mouth set of film radiographs taken on a manikin using safe and effective techniques.
  • Expose a full-mouth set of radiographs taken on a manikin using digital technology.

  • Direct instruction on patient management techniques while performing radiograph exposures.
  • Work collaboratively with peers to evaluate and critique dental films.

In addition, continue to build upon team concepts introduced in DA 111:

  • Describe the dental team and the importance of working as a collaborative team member.

  • Demonstrate the ability to work as a dental team member.

  • Provide patient management skills in the clinical setting.