DH 1401 Ch 19 : Paralleling Technique Quiz

What is the purpose of the paralleling technique?

• To present basic concepts of dental radiography

• To describe patient preparation procedures

• To ensure accurate and distortion-free images

• To discuss the advantages and disadvantages of dental radiography

Which term is synonymous with the paralleling technique?

• Extension Cone Paralleling Technique

• Right-Angle Technique

• Long Cone Technique

• All of the above

What is the basic principle of the paralleling technique?

• The receptor is placed parallel to the long axis of the tooth

• The central ray is directed perpendicular to the film and tooth

• A beam alignment device is used to keep the receptor parallel

• All of the above

How does the object-receptor distance affect the image?

• It increases the magnification of the image

• It decreases the sharpness of the image

• It has no effect on the image

• It increases the distortion of the image

Which beam alignment device can be used with the paralleling technique?

• Rinn XCP Extension Cone Paralleling System

• Rinn XCP-ORA One Ring & Arm Positioning System

• Rinn XCP-DS Fit Universal Sensor Holder

• All of the above

What are the different sizes of receptors used with the paralleling technique?

• Size 1 and Size 2

• Size 2 and Size 3

• Size 3 and Size 4

• Size 4 and Size 5

What are the five basic rules of the paralleling technique?

• Receptor placement, receptor position, vertical angulation, horizontal angulation, film receptor exposure

• Patient preparation, equipment preparation, exposure sequence, receptor placement, modifications

• Accuracy, simplicity, duplication, discomfort, advantages

• Object-receptor distance, target-receptor distance, beam alignment device, receptor holding device, central ray

What modifications are used in the paralleling technique for a patient with a shallow palate?

• Cotton rolls and increased vertical angulation

• Maxillary torus and increased horizontal angulation

• Mandibular tori and decreased vertical angulation

• Cotton rolls and decreased horizontal angulation

What are the advantages of the paralleling technique?

• Accurate and distortion-free images

• Elimination of the need for horizontal and vertical angulation

• Validity of serial image comparison

• All of the above

What are the disadvantages of the paralleling technique?

• Difficult receptor placement and discomfort

• Beam alignment device discomfort and increased exposure time

• Increased patient gag reflex and dimensional distortion

• All of the above