Question 1

The alignment of the x-ray beam in the horizontal and vertical planes formed by the long axis of the teeth and the film sensor placement is referred to as:

Accepted Answer

A) angulation. 
B) interproximal. 
C) paralleling. 
D) perpendicular. 
A) angulation. 
B) interproximal. 
C) paralleling. 
D) perpendicular. A

Question 2

The bisecting technique is used:

Accepted Answer

A) because it is recommended by the American Academy of Oral and Maxillofacial Radiology. 
B) because this technique provides the most accurate image. 
C) because it allows the least amount of radiation to be used to produce a quality image. 
D) when patients have small mouths or low palatal vaults. 
A) because it is recommended by the American Academy of Oral and Maxillofacial Radiology. 
B) because this technique provides the most accurate image. 
C) because it allows the least amount of radiation to be used to produce a quality image. 
D) when patients have small mouths or low palatal vaults. D

Question 3

When using a size #1 film sensor for anterior images using the paralleling technique,_____ maxillary and _____ mandibular images are exposed.

Accepted Answer

A) five; four 
B) six; four 
C) four; three 
D) three; four 
A) five; four 
B) six; four 
C) four; three 
D) three; four C

Question 4

According to the guidelines for film placement,which of the following is true?

Accepted Answer

A) The colored side of the film always faces the teeth. 
B) Anterior films are always placed horizontally. 
C) Posterior periapical films are always placed vertically. 
D) The identification dot on the film is always placed in the slot of the film holder. 
A) The colored side of the film always faces the teeth. 
B) Anterior films are always placed horizontally. 
C) Posterior periapical films are always placed vertically. 
D) The identification dot on the film is always placed in the slot of the film holder.

Question 5

When taking periapical x-rays,the patient's head is _____ for maxillary films and _____ for the mandibular arch.

Accepted Answer

A) tilted back slightly; tilted back slightly 
B) tilted back slightly; upright 
C) upright; tilted back slightly 
D) upright; upright 
A) tilted back slightly; tilted back slightly 
B) tilted back slightly; upright 
C) upright; tilted back slightly 
D) upright; upright

Question 6

The major difference between the paralleling technique and the bisecting technique is film sensor:

Accepted Answer

A) placement. 
B) size. 
C) speed. 
D) none of the above. 
A) placement. 
B) size. 
C) speed. 
D) none of the above.

Question 7

When taking a premolar bitewing image,the anterior edge of the film sensor should be placed:

Accepted Answer

A) in the middle of the first premolar. 
B) on the distal half of the canine. 
C) on the distal half of the lateral incisor. 
D) on the mesial of the second premolar. 
A) in the middle of the first premolar. 
B) on the distal half of the canine. 
C) on the distal half of the lateral incisor. 
D) on the mesial of the second premolar.

Question 8

Occlusal radiographs can be used for:

Accepted Answer

A) detecting decay. 
B) checking bone levels between the teeth. 
C) locating unerupted teeth. 
D) checking for infections at the apex of the teeth. 
A) detecting decay. 
B) checking bone levels between the teeth. 
C) locating unerupted teeth. 
D) checking for infections at the apex of the teeth.

Question 9

The number of x-ray views that makes a patient's full-mouth series depends on:

Accepted Answer

A) the dentist's preference. 
B) the number of teeth present in a patient's mouth. 
C) whether the paralleling or the bisecting technique is used. 
D) all of the above. 
A) the dentist's preference. 
B) the number of teeth present in a patient's mouth. 
C) whether the paralleling or the bisecting technique is used. 
D) all of the above.

Question 10

In adults,a size #_____ intraoral film is used for the occlusal technique.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 4 
A) 0 
B) 1 
C) 2 
D) 4

Question 11

Factors that can affect the quality of dental radiographs include:

Accepted Answer

A) film sensor placement. 
B) exposure. 
C) processing. 
D) all of the above. 
A) film sensor placement. 
B) exposure. 
C) processing. 
D) all of the above.

Question 12

Radiographic images on an edentulous patient might be required for:

Accepted Answer

A) detection of interproximal caries. 
B) identifying objects embedded in the bone. 
C) detecting retained root tips, impacted teeth, and lesions. 
D) both b and c. 
A) detection of interproximal caries. 
B) identifying objects embedded in the bone. 
C) detecting retained root tips, impacted teeth, and lesions. 
D) both b and c.

Question 13

For the patient with a hypersensitive gag reflex,the _____ should be exposed last.

Accepted Answer

A) maxillary molars 
B) mandibular molars 
C) mandibular anteriors 
D) maxillary premolars 
A) maxillary molars 
B) mandibular molars 
C) mandibular anteriors 
D) maxillary premolars

Question 14

Angulation of the PID is critical to ensure that the central ray is perpendicular to the bisector line in which of the following techniques?

Accepted Answer

A) Long-cone 
B) Bisecting 
C) Bitewing 
D) Both b and c 
A) Long-cone 
B) Bisecting 
C) Bitewing 
D) Both b and c

Question 15

The dental assistant exposing a periapical film sensor using the paralleling technique should always start with the:

Accepted Answer

A) anterior teeth. 
B) molars. 
C) upper teeth. 
D) lower teeth. 
A) anterior teeth. 
B) molars. 
C) upper teeth. 
D) lower teeth.

Question 16

To correct an elongated image on an x-ray view,the vertical angulation needs to be:

Accepted Answer

A) increased. 
B) decreased. 
C) lowered. 
D) flattened. 
A) increased. 
B) decreased. 
C) lowered. 
D) flattened.

Question 17

Periapical x-rays are essential in which dental specialty?

Accepted Answer

A) Pediatric dentistry 
B) Endodontics 
C) Oral surgery 
D) Both b and c 
A) Pediatric dentistry 
B) Endodontics 
C) Oral surgery 
D) Both b and c

Question 18

The bisecting-angle instrument (BAI) uses _____ to determine the correct PID angulation.

Accepted Answer

A) indicator arms 
B) bite-blocks 
C) aiming rings 
D) dental dams 
A) indicator arms 
B) bite-blocks 
C) aiming rings 
D) dental dams

Question 19

A radiographic mount should always be labeled with the:

Accepted Answer

A) patient's name. 
B) operator's name. 
C) patient's name and the date the images were exposed. 
D) patient's name and the date the images were processed. 
A) patient's name. 
B) operator's name. 
C) patient's name and the date the images were exposed. 
D) patient's name and the date the images were processed.

Question 20

The American Academy of Oral and Maxillofacial Radiology recommends using the paralleling technique because:

Accepted Answer

A) it is an easier technique to use. 
B) it provides the most accurate image with the least among of radiation exposure. 
C) the film sensor is placed closer to the teeth therefore reducing the chance of patient gagging. 
D) both a and c. 
A) it is an easier technique to use. 
B) it provides the most accurate image with the least among of radiation exposure. 
C) the film sensor is placed closer to the teeth therefore reducing the chance of patient gagging. 
D) both a and c.

Exam 41: Intraoral Imaging

The alignment of the x-ray beam in the horizontal and vertical planes formed by the long axis of the teeth and the film sensor placement is referred to as:

The bisecting technique is used:

When using a size #1 film sensor for anterior images using the paralleling technique,_____ maxillary and _____ mandibular images are exposed.

According to the guidelines for film placement,which of the following is true?

When taking periapical x-rays,the patient's head is _____ for maxillary films and _____ for the mandibular arch.

The major difference between the paralleling technique and the bisecting technique is film sensor:

When taking a premolar bitewing image,the anterior edge of the film sensor should be placed:

Occlusal radiographs can be used for:

The number of x-ray views that makes a patient's full-mouth series depends on:

In adults,a size #_____ intraoral film is used for the occlusal technique.

Factors that can affect the quality of dental radiographs include:

Radiographic images on an edentulous patient might be required for:

For the patient with a hypersensitive gag reflex,the _____ should be exposed last.

Angulation of the PID is critical to ensure that the central ray is perpendicular to the bisector line in which of the following techniques?

The dental assistant exposing a periapical film sensor using the paralleling technique should always start with the:

To correct an elongated image on an x-ray view,the vertical angulation needs to be:

Periapical x-rays are essential in which dental specialty?

The bisecting-angle instrument (BAI) uses _____ to determine the correct PID angulation.

A radiographic mount should always be labeled with the:

The American Academy of Oral and Maxillofacial Radiology recommends using the paralleling technique because:

History of Dentistry

The Professional Dental Assistant

The Dental Healthcare Team

Dental Ethics

Dentistry and the Law

General Anatomy

General Physiology

Oral Embryology and Histology

Head and Neck Anatomy

Landmarks of the Face and Oral Cavity

Overview of the Dentitions

Tooth Morphology

Dental Caries

Periodontal Disease

Preventive Dentistry

Nutrition

Oral Pathology

Microbiology

Disease Transmission and Infection Prevention

Principles and Techniques of Disinfection

Principles and Techniques of Instrument Processing and Sterilization

Regulatory and Advisory Agencies

Chemical and Waste Management

Dental Unit Waterlines

Ergonomics

The Patient Record

Vital Signs

Oral Diagnosis and Treatment Planning

The Special Needs and Medically Compromised Patient

Principles of Pharmacology

Assisting in a Medical Emergency

The Dental Office

Delivering Dental Care

Dental Hand Instruments

Dental Handpieces and Accessories

Moisture Control

Anesthesia and Pain Control

Foundations of Radiography, Radiographic Equipment, and Radiation Safety

Digital Imaging, Dental Film, and Processing Radiographs

Legal Issues, Quality Assurance, and Infection Prevention

Extraoral Imaging

Restorative and Esthetic Dental Materials

Dental Liners, Bases, and Bonding Systems

Dental Cements

Impression Materials

Laboratory Materials and Procedures

General Dentistry

Matrix Systems for Restorative Dentistry

Fixed Prosthodontics

Provisional Coverage

Removable Prosthodontics

Dental Implants

Endodontics

Periodontics

Oral and Maxillofacial Surgery

Pediatric Dentistry

Coronal Polishing

Dental Sealants

Orthodontics

When using a size #1 film sensor for anterior images using the paralleling technique,_ maxillary and _ mandibular images are exposed.

When taking periapical x-rays,the patient's head is _ for maxillary films and _ for the mandibular arch.