Which of the following is a basic principle of the paralleling technique?
A) The image receptor is placed perpendicular to the long axes of the teeth.
B) The central ray of the x-ray beam is directed parallel to both the teeth and the recording plane of the image receptor.
C) The image receptor is placed parallel to the long axes of the teeth.
D) The central ray of the x-ray beam is directed perpendicular to an imaginary bisector.
C
Explanation: A) The basic principles of the paralleling technique are that the image receptor (film packet, phosphor plate, or digital sensor) must be placed parallel to the long axis of the object (tooth) being radiographed and that the central ray of the x-ray beam is directed to intersect both the image receptor and the object (tooth) perpendicularly.
B) The basic principles of the paralleling technique are that the image receptor (film packet, phosphor plate, or digital sensor) must be placed parallel to the long axis of the object (tooth) being radiographed and that the central ray of the x-ray beam is directed to intersect both the image receptor and the object (tooth) perpendicularly.
C) The basic principles of the paralleling technique are that the image receptor (film packet, phosphor plate, or digital sensor) must be placed parallel to the long axis of the object (tooth) being radiographed and that the central ray of the x-ray beam is directed to intersect both the image receptor and the object (tooth) perpendicularly.
D) The basic principles of the paralleling technique are that the image receptor (film packet, phosphor plate, or digital sensor) must be placed parallel to the long axis of the object (tooth) being radiographed and that the central ray of the x-ray beam is directed to intersect both the image receptor and the object (tooth) perpendicularly.
You might also like to view...
________ A fibroid tumor is a benign tumor or growth that contains fiber like tissue
Indicate whether the statement is true or false
Primitive vegetables that reproduce through spores are the definition of:
a. bacterium. b. fungi. c. helminths. d. none of the above.
The sports journalists most likely to avoid stereotypes related to ethnicity and nationality are those who have
A. learned about the national and ethnic histories of the players they cover. B. played sports themselves. C. studied the history of sport journalism. D. covered high school sports in areas with large minority populations.
The events that occurred when the Paralympics wanted to use the five Olympic rings symbol and the Olympic flag during their event that was to follow the 1984 Olympic Games in Los Angeles demonstrates that the
A. IOC and the Paralympics have assisted each other in mutually beneficial ways. B. merger of the Olympics and Paralympics will occur before 2025. C. Paralympics has always been able to obtain support from the IOC. D. IOC has not been a willing supporter of the Paralympic Games.