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Ch.38 Radiographic Imaging

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Ch.38 Radiographic Imaging Recall 1.Who discovered x-rays? -Wilhelm Conrad Roentgen discovered x-rays. 2.Who was the first person to make practical use of x-rays in dentistry? -C. Edmund Kells wa ... s the first person to make practical use of x-rays in dentistry. 3.What is ionization? -Ionization is the process by which electrons are removed from electrically stable atoms. 4.What are the primary components of a dental x-ray machine? -The primary components of a dental x-rays machine are the tube head, control panel, and extension arm. 5. Name the negative electrode inside the x-ray tube. -The negative electrode inside the x-rays tube is called the cathode. 6. Name the positive electrode inside the x-ray tube. -The positive electrode inside the x-ray tube is called the anode. 7. What does the control panel contain? -The control panel contains the master switch, an indicator light, selector buttons, and exposure buttons. 8. Name the three types of radiation? -The three types of radiation are primary radiation, secondary radiation, and scatter radiation. 9. Describe the difference between radiopaque and radiolucent radiograph. -Radiopaque appears whiter than radiolucent in a radiograph. 10. Give examples of structures that appear radiolucent on a radiograph. -Air space, soft tissues, abscesses, tooth decay and dental pulp appear radiolucent. 11. Give examples of structures that appear radiopaque on a radiograph. -Tooth enamel, metal restoration, and dense areas of bones appear radiopaque. 12. What are the three characteristics of the x-ray beam? -The three characteristics of the x-rays beams are quality, quantity, and intensity. 13. Which exposure factors control contrast? -KVp controls contrast. 14.What is meant by dentistry on a dental radiograph? . 15. What is the name of the process that results in the harmful effects of x-rays? -The name of the process that results in the harmful effects of x-rays is ionizing radiation. 16.What is the name of the time period between x-ray exposure and the appearance of symptoms? -The name period between x-ray exposure and the appearance of symptoms is called latent period. [Show More]

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