TAILIEUCHUNG - Ebook Essentials of dental radiography for dental assistants and hygienists (9/E): Part 2

(BQ) Part 2 book “Essentials of dental radiography for dental assistants and hygienists” has contents: Radiographic errors and quality assurance, mounting and viewing dental radiographs, patient management and supplemental techniques, extraoral techniques. | PART VI • RADIOGRAPHIC ERRORS AND QUALITY ASSURANCE Identifying and Correcting Undiagnostic Radiographs OBJECTIVES Following successful completion of this chapter, you should be able to: CHAPTER 18 CHAPTER OUTLINE 1. Define the key words. 2. Recognize errors caused by incorrect radiographic techniques. 3. Apply the appropriate corrective actions for technique errors. 4. Recognize errors caused by incorrect radiographic processing. 5. Apply the appropriate corrective actions for processing errors. 6. Recognize errors caused by incorrect radiographic image receptor handling. 7. Apply the appropriate corrective actions for handling errors. 8. Identify five causes of film fog. 9. Apply the appropriate actions for preventing film fog. KEY WORDS Artifacts Herringbone error Conecut error Mesiodistal overlap Dead pixel Overdevelopment Distomesial overlap Overexposure Double exposure Overlapping Electronic noise Static electricity Elongation Underdevelopment Film fog Underexposure Foreshortening Objectives Key Words Introduction Recognizing Radiographic Errors Technique Errors Processing Errors Handling Errors Fogged Images Review, Recall, Reflect, Relate References 227 227 228 228 229 235 236 237 238 240 228 RADIOGRAPHIC ERRORS AND QUALITY ASSURANCE Introduction Although radiographs play an important role in oral health care, it should be remembered that exposure to radiation carries a risk. The radiographer has an ethical responsibility to the patient to produce the highest diagnostic quality radiographs, in return for the patient’s consent to undergo the radiographic examination. Less-than-ideal radiographic images diminish the usefulness of the radiograph. When the error is significant, a radiograph will have to be retaken. In addition to increasing the patient’s radiation exposure, retake radiographs require additional patient consent and may reduce the patient’s confidence in the operator and in the practice. No .

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