| A | B |
|---|
| what radiograph characteristics | herringbone effects |
| elongation is caused by | too little vertical angle |
| when taking radiographs of a 6 year old patient, which of the following adjustments is made for the child's size | shorter exposure time |
| cone cutting results when | the central ray is not aimed at the center of the film |
| if the focal-film distance is increased and the mA remains the same, the image will have | decreased magnification |
| penumbra is | diffuse outline of an image (shadow around object) |
| which of the following positioning errors results in overlapping | incorrect horizontal angulation |
| when using an aiming ring to align the PID, the rim on the open end of the tube should be | parallel to the ring |
| overlapping the contact areas on a bitewing radiograph is an indication that | horizontal angulation is off |
| filters are used in the x-ray tube head to reduce | patient radiation dose |
| how should film be repositioned when the third molar is not showing up on the radiograph of the mandibular molar area | move film farther back in mouth |
| the distal surface of the canine should be observed in which of the following radiograph exposures | premolar bitewing |
| which of the following anatomical landmarks is not visible in the mandibular molar exposure | mental foreamen |
| the horizontal line from the top of the ear through the corner of the eye that is used for positioning a patient for panoramic film is the | Frankfort plane |
| occlusal radiographs are used to | locate specific dental abnormalities |
| exatroral radiographs are used by the dentist to | caries in anterior teeth |
| which of the following could result in panoramic x-ray with a flat occlusal plane or smile line | chin tipped too high |
| digital radiography uses less radiation than film based radiography because | the sensor is more sensitive than film |
