DNHY 1114 - Dental Radiography
Credit Hours: 3.00
Prerequisites: Admission into the Dental Hygiene Program; ENGL 1180 or ENGL 1210 , BIOL 2710 , BIOL 2400 or BIOL 2730 , PSYC 1010 , CHEM 1050 , and SOCY 1010 all with a grade of C or better
Corequisites: DNHY 1110 , DNHY 1112 , and DNHY 1115
An introduction to physics and biology of radiation; radiation hygiene; equipment and materials; film exposure and processing, technique, and chemistry.
Billable Contact Hours: 5
When Offered: Fall semester only
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OUTCOMES AND OBJECTIVES
Outcome 1: Upon completion of this course, students will be able to summarize the discovery of X-Rays.
- List five uses of dental radiographs.
- List other imaging modalities available in dentistry.
- Identify the individual who discovered X-Rays.
- Identify the individual who discovered dental X-Rays.
Outcome 2: Upon completion of this course, students will be able to summarize the components of an X-Ray machine.
- List the parts of the X-Ray head.
- List the elements of the X-Ray tube.
- Define filtration.
- Define collimation.
- Summarize the various types of position indicating devices.
Outcome 3: Upon completion of this course, students will be able to summarize how X-Rays are produced.
- Explain the purpose of the step-down transformer.
- Explain the purpose of the step-up transformer.
- Explain the controlling factors considered during X-Ray exposure.
- Explain the high voltage potential.
- Explain the thermionic emission effect.
Outcome 4: Upon completion of this course, students will be able to summarize radiation safety protocols.
- List the common X-Ray monitoring devices used in dentistry.
- List the methods of patient radiation protection.
- List the methods of clinician radiation protection.
- List the agencies responsible for regulations of hazardous disposal of X-Ray products.
- List the factors that determine radiation injuries.
- List the sequence of events following radiation exposure.
- Define radio sensitivity and radio resistance.
- Define ALARA.
- Interpret the impact of the direct and indirect theories of biological damage.
- Identify radio sensitive cells of the body.
- Identify radio resistance cells of the body.
- Identify the critical tissues of the head and neck.
- Compare the somatic and genetic effects of radiation.
- Compare threshold and non-threshold dose response curves.
- Identify deterministic and stochastic effects of radiation.
- Explain the short- and long-term effects of irradiation.
- Explain the risks and benefits of dental radiographs.
- Explain the maximum permissible dose (MPD) for radiation workers.
- Explain the maximum permissible dose (MPD) for the general public.
Outcome 5: Upon completion of this course, students will be able to explain the fundamental systems of digital radiography.
- List the types of digital image receptors.
- Demonstrate how digital imaging software can alter X-Ray images.
- Explain the purpose for scanning and clearing phosphor plates.
- Explain the process for digitizing radiographs using a scanner.
- Explain the advantages and disadvantages of digital radiography.
- Explain direct and indirect digital imaging.
- Explain proper receptor storage.
Outcome 6: Upon completion of this course, students will be able to explain intra- and extraoral radiographic techniques.
- List the anatomical points of entry for specific radiographs.
- List the three primary purposes of bitewings.
- Explain what errors result from incorrect vertical angulation.
- Explain what errors result from incorrect horizontal angulation.
- Explain errors resulting from incorrect patient placement in the panoramic machine.
- Explain common exposure errors.
- Explain common processing errors.
- Explain the differences between periapical, bitewing, occlusal, and panoramic images.
- Explain the purpose of vertical bitewings.
Outcome 7: Upon completion of this course, student will be able to demonstrate obtaining dental X-Rays on an adult and pediatric DXTTR X-Ray trainer.
- Demonstrate obtaining anterior periapical X-Rays.
- Demonstrate obtaining posterior periapical X-Rays.
- Demonstrate obtaining panoramic X-Rays.
- Demonstrate obtaining horizontal bitewing X-Rays.
- Demonstrate obtaining vertical bitewing X-Rays.
- Demonstrate obtaining occlusal X-Rays.
- Demonstrate paralleling technique.
- Demonstrate bisecting angle technique.
Outcome 8: Upon completion of this course, students will be able to explain the types of dental film.
- List the five basic sizes of intraoral film.
- List the components of an intraoral film packet.
- List the components of an extraoral film packet.
- List the components of an automatic film processor.
- List the steps in processing dental films.
- List the chemicals in the processing solutions.
- List the equipment needed for manual processing.
- Compare the two types of extraoral films.
- Explain the purpose of intensifying screens.
- Explain the purpose of emulsion.
- Explain film speed.
- Explain proper storage of dental film.
- Explain the features and requirements of a darkroom.
- Explain film handling errors during processing.
- Explain the process for duplicating radiographs.
Outcome 9: Upon completion of this course, students will be able to summarize the common extraoral radiographic images.
- Explain the similarities and differences of common extraoral radiographs.
- Identify a panoramic image.
- Identify a Waters View image.
- Identify a lateral jaw image.
- Identify a reverse Towne image.
COMMON DEGREE OUTCOMES (CDO)
• Communication: The graduate can communicate effectively for the intended purpose and audience.
• Critical Thinking: The graduate can make informed decisions after analyzing information or evidence related to the issue.
• Global Literacy: The graduate can analyze human behavior or experiences through cultural, social, political, or economic perspectives.
• Information Literacy: The graduate can responsibly use information gathered from a variety of formats in order to complete a task.
• Quantitative Reasoning: The graduate can apply quantitative methods or evidence to solve problems or make judgments.
• Scientific Literacy: The graduate can produce or interpret scientific information presented in a variety of formats.
CDO marked YES apply to this course:
Critical Thinking: YES
Global Literacy: YES
Information Literacy: YES
Quantitative Reasoning: YES
Scientific Literacy: YES
COURSE CONTENT OUTLINE
Week 1: History of Dental Radiography
Week 2: X-Ray Machine & Components
Week 3: Radiation Safety - Biological Damage
Week 4: Radiation Safety - Safety Protocol
Week 5: Radiography Techniques - Paralleling
Week 6: Radiography Techniques - Bisecting Angle
Week 7: Dental Imaging Receptors
Week 8: Film Processing (Midterm)
Week 9: Obtaining Quality Radiographs - Input
Week 10: Obtaining Quality Radiographs - Quality Assurance
Week 11: Fundamentals of Radiography - Infection Control
Week 12: Fundamentals of Radiography - Federal & State Regulations
Week 13: Extraoral Imaging
Week 14: Occlusal Imaging
Week 15: Normal Radiographic Anatomy; Dental Caries
Week 16: Periodontal Disease
Official Course Syllabus - Macomb Community College, 14500 E 12 Mile Road, Warren, MI 48088
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