![]() ![]() Within the packet, the film is protected on either side by a sheet of black paper a thin sheet of lead foil absorbs most of the x-rays that pass through the film (thus protecting the patient).ĭouble film packets contain two pieces of film between the black paper lining. This dot will aid later in mounting and determining the right side from the left. A small circle on the back indicates where the embossed dot, or raised bump, is on the film. The back, which is colored and has the tab used for opening the packet before processing, is always placed away from the PID. This side is always placed toward the position indicator device (PID). You must also be familiar with dental x-ray equipment, dental-x-ray film, and film- or sensor-holding devices ( Figure 16-1).įigure 16-2 Contents of a dental film packet: lead foil, radiographic film, and black paper. It is important for the dental assistant to be competent with all forms of dental radiography. A radiograph is an image on a conventional dental film. When discussing digital radiography, the term digital image is used instead of radiograph, film, or x-rays. In the modern dental office, digital radiography is rapidly replacing traditional film-based techniques. 1 Pronounce, define, and spell the Key Terms.Ģ Demonstrate the assembly of film- and sensor-holding devices for a complete mouth survey using the paralleling technique.ģ Produce a complete mouth survey of dental images, including bite-wings, using the paralleling technique and the appropriate film/sensor-holding device.Ĥ Identify errors in exposure technique, and describe the steps necessary for prevention.ĥ Identify errors in processing technique, and describe the steps for prevention.Ħ Demonstrate the infection control techniques necessary for manual and automatic film processing.ħ List the steps in manual processing and in automatic processing of dental radiographs.Ĩ Mount a full series of periapical and bite-wing dental radiographs.ĩ Describe the purpose and uses of panoramic imaging.ġ0 Describe the equipment used in panoramic imaging.ġ1 Describe the steps for patient positioning in panoramic imaging.ġ2 Discuss the advantages and disadvantages of panoramic imaging.ġ3 Describe the basic concepts of digital imaging.ġ4 Describe the infection control necessary when digital sensors or phosphor storage plates (PSPs) are used.ġ5 Explain the advantages and disadvantages of digital radiography. ![]()
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