|Student Learning Outcomes -|
- Demonstrate correct maxillary and mandibular anterior intraoral film placement technique on a mannequin
- Using a diagram, the student will be able to identify four basic components in the x-ray tubehead.
|Description - |
|Introduction to dental radiology for dental assisting students. Emphasis on production, characteristics, biologic effects, radiation safety and protection. Introduction to intraoral long-cone radiographic techniques, film processing and mounting. Intended for students in the dental assisting program.|
|Course Objectives - |
|Expected Outcomes & Dental Assisting Program Competencies |
The student will be able to:
Dental Assisting Theory and Practice
Infection Control and Hazardous Waste Management
- describe the process by which x-rays are produced; identify the thermionic and kinetic energy factors that alter the density or penetrability of the x-rays.
- identify the component parts of the x-ray unit and explain the adjustments that should be made to produce good quality radiographs.
- develop and expose radiographs to a consistent density standard.
- identify each of the processing solutions by name and broad chemical grouping
- identify radiopaque and radiolucent landmarks of the maxilla and mandible
- utilizing a mannequin and long-cone technique, expose and process:
- 16 periapical films with no more than 5 retakes and demonstrating diagnostic density and contrast in two hours.
- arrange and mount the exposed films
Ethical and Legal Principles:
- Demonstrate correct procedures in the darkroom to prevent cross contamination.
- Demonstrate correct procedures in the operatory to prevent cross contamination.
- Demonstrate the proper disposal of lead foil.
- apply the ethical term of nonmaleficence or to do no harm by placing a lead shield on each patient prior to radiation exposure
|Special Facilities and/or Equipment - |
- Gowns, safety glasses, mask, gloves.
- X-ray laboratory and darkroom, including mannequins, view boxes, film, processor, mounts and labels
|Course Content (Body of knowledge) - |
- Define key terminology and applications associated with the paralleling technique.(Lec)
- film placement
- centering teeth
- film holders
- film size
- patient and equipment preparation
- exposure sequence
- Describe in detail how dental x-rays are produced (Lec)
- electron cloud
- tungsten filament
- target anode
- focal spot
- copper stem
- mA, kVp, time
- contrast, density
- molecular structure of the atom
- wavelength, frequency
- Patient Education and the Dental Radiographer (Lec)
- identification of the fearful patient
- benefits of dental x-rays
- patient safety
- operator safety
- dental x-rays and the pregnant patient
- dental x-rays and their frequency
|Methods of Evaluation - |
- Written, slide quizzes and a comprehensive final exam.
- Critical thinking skills are applied to analyze radiographic landmarks on 16 periapical films for correct mounting.
- Analysis of film errors are studied and technical or processing corrections to the errors must be identified.
|Representative Text(s) - |
|Iannucci, Howerton, Dental Radiography. 3rd Edition. Saunders 2006 ISBN# 13 978-0-7216-1575-2. |
Yamamoto, Judy. DA 53A Radiology Lecture Syllabus, 2010
Yamamoto, Judy. DA Radiology Lab Policy and Information Manual, 2010-2011
|Disciplines - |
|Dental Assisting |
|Method of Instruction - |
|May include but not limited to lecture, demonstration, observation and cooperative learning exercises. |
|Lab Content - |
- Infection control of the x-ray units and operatories are applied to the radiology laboratory experience. B. Additional lab content includes tray set-up for specific procedures, aseptic technique, patient eligibility, film exposures, processing, viewing and evaluation.
|Types and/or Examples of Required Reading, Writing and Outside of Class Assignments - |
- Given five comments from patients who are fearful of x-rays, students will prepare an empathetic and factual response.
- Assigned lab readings will be from the DA 53A Lab Syllabus and the Radiology Policy Manual 2010-2011.
- An example of a writing assignment is: List the steps and state the rationale involved in taking a FMS. Include proper protocols and radiation safety concerns for retakes.