Dental Radiology Chapter 7 Questions and Answers Graded A+

Dental Radiology Chapter 7 Questions and Answers Graded A+ What is the primary function of dental X-ray film? To capture the X-ray image and create a permanent record What are the main components of dental X-ray film? A plastic base, emulsion, and protective coating What does the emulsion on dental X-ray film contain? Silver halide crystals suspended in a gelatin matrix What happens when X-rays interact with the film emulsion? The silver halide crystals undergo a chemical change, forming an image How does film speed affect exposure time in dental radiography? Faster film speeds require less exposure time 2 What is the purpose of the protective coating on dental X-ray film? To prevent damage to the film emulsion during handling What does the lead foil in the film packet do? It reduces radiation exposure to the patient and prevents backscatter radiation Why is film stored in a cool, dry place? To prevent deterioration and ensure image quality How is dental X-ray film packaged? It is typically sealed in light-proof packets to prevent accidental exposure to light Why should dental X-ray film not be exposed to light before use? Exposure to light can fog the film, resulting in poor-quality images What is the difference between intraoral and extraoral X-ray film? Intraoral film is designed for use inside the mouth, while extraoral film is used outside the mouth 3 Why is dental X-ray film sensitive to radiation and light? The silver halide crystals in the emulsion react to both light and radiation What effect does overexposure to X-rays have on the film? It causes the image to appear too dark