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PARALLELING TECHNIQ

PARALLELING TECHNIQUE

QuestionAnswer
Moving or lying in the same plane is known as _________________. parallel
Increased object-receptor distance causes _____________________ to occur. image magnification
What receptor holder is disposable? Stabe bite-block
How can image magnification be decreased? increase the target-receptor distance
Is the receptor placed parallel or perpendicular to the long axis of the tooth? parallel
How is the central beam directed to the receptor? perpendicular
What size receptor is generally used for anterior teeth? size 1
How should reusable receptor holders be cleaned after each use? sterilized
What are Rinn XCP instruments? receptor holders that use aiming rings to assist in the alignment of the PID
Which area of the mouth generally uses a size 2 receptor for dental images? posterior
Patients my gag on receptors that could typically be tolerated without gagging after the gag reflex has been stimulated. T or F True
How many images will be taken of the anterior teeth if a size 1 receptor is used? 7
In exposure sequence, which quadrant is best for you to begin with? maxillary right quadrant
In exposure sequence, where is the second quadrant you should take images? mandibular left quadrant
Where should you begin the anterior sequence for exposures? tooth 6
When will you take only 6 exposures of the anterior teeth? when using size 2 receptors
If parallelism is greater than 20 degrees when your patient has a shallow palate, the technique should be modified. T or F True
How many techniques can be used to compensate for a shallow palate due to a shallow palate? Two
How much should the vertical angulation be increased by to compensate for the lack of parallelism? 5 to 15 degrees
There are ______ images taken on the posterior teeth for the paralleling technique. 8
Where should the identification dot be placed when using XCPs? in the slot of the bite block
Where do you place the receptor when your patient has a mandibular torus? between the torus and the tongue
One advantage of the paralleling technique is that it creates images free of dimensional distortion? T or F True
Where should the receptor be placed when a patient has a palatal torus? on the far side of the torus
How should a receptor be placed in the mandibular premolar region? placed under the tongue
The maxillary incisor image should include ________________, ___________________, and surrounding bone of the right or left central and lateral incisors. crowns, roots
The lingual cusp of the first premolar can obscure the distal contact of the canine in which exposure? maxillary canine
What distance is used to compensate for image magnification and loss of definition? 16" target-receptor
The maxillary molar image will capture which anatomical structures? crowns, roots, surrounding bone, tuberosity and 1st, 2nd, 3rd molars
A beam alignment device will reduce the amount of radiation a patient receives when using the paralleling technique. T or F False- a rectangular collimator will
How much reduction in radiation will a patient receive if the size of the x-ray beam is limited? 70%
Which beam alignment device uses one arm and one ring and is used for anterior, posterior and bite-wings? Rinn XCP-ORA System
What does "receptor position" refer to? the receptor being parallel to the long-axis of the tooth
How should the central ray be directed to the receptor in the paralleling technique? perpendicular
What does horizontal angulation indicate? the central ray being directed through the contact area of the teeth
Created by: jmcpartland