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DANB RHS practice Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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DANB RHS practice Exam | Questions And Answers Latest {2024- 2025} A+ Graded |100% Verified
Damage to a living organism that is produced by photons striking the organism and producing a
molecular chemical change be caused by:
A)Breaking molecules into smaller pieces
B)Disrupting molecular bonds
C)Forming new bonds within molecules
D)Forming new bonds between molecules
E)All of the above - E) All of the above
Interproximal caries often appears as a
A)Radiopaque extension, or "spur"
B)Radiolucent line around the root of the tooth
C)Moon- or wedge-shaped radiolucency
D)Moon- or wedge-shaped radiopacity - C)Moon- or wedge- shaped radiolucency
Interproximal caries is frequenly found in which area of the tooth?
A)Just apical to the pulp chamber
B)At or slightly coronal to the contact point
C)At or slightly apical to the contact point
D)Just apical to the central occlusal pit - B) At or slightly coronal to the contact point
Which of the following is not classified as a developmental dental abnormality?
A)Taurodont
B)Mesiodens
C)Dens in dente
D)Periapical abscess - D) Periapical abscess
,The term PERICORONAL means?
A)At the apex of the root
B)Around the root of a tooth
C)Around the crown of a tooth
D)Around the periodontal ligament space - C) Around the crown of a tooth
The term MULTILOCULAR refers to a radiographic appearance that may resemble which of the
following?
A)A piece of cotton
B)The ray of the sun
C)A group of soap bubbles
D)An orange peel - C) A group of soap bubbles
Which of the following has a radiopaque appearance?
A)Periapical cyst
B)Mandibular torus
C)Dentigerous cyst
D)Ameloblastoma - Mandibular torus
A panoramic film was taken on a patient who had mandibular teeth but wore a complete maxillary
denture. You asked him to remove the denture during the exposure. When you looked at the film, the
mandibular teeth were very slender and out of focus.
What happened? - The patient was positioned too far forward in the bite block/machine.
The area of the skull that is in focus and this exhibited on a panoramic film?
A)Latent image
B)Focal trough or image layer
C)Ghost image)
D)Within Frankfort plane - B)Focal trough or image later
,You notice a dark streak or band superimposed over the apices of the maxillary teeth on a panoramic
radiograph. Which of the following errors occurred during the exposure? - The patients tongue was not
contacting the hard palate
A lateral oblique or lateral jaw projection may be chosen when..? - The patient is not able to have an
intraoral film, and a panoramic unit is not available.
A transcranial view refers to a..?
A)TMJ projections
B)Panomograph
C)Cephalometric view
D)View in one ear and out the other - A)A TMJ projection
The anatomic strucures or a primary importance on TMJ projections are
A)The condyle and the coronoid process
B)The condyle and the maxillary tuberosity
C)The coronoid process and the articular eminence
D)The articular eminence and the condyle. - The coronoid process and the articular eminence
The best method to obtain the most accurate endodontic film is to use..?
A)The bisecting-angle technique with the patient holding the film
B)The paralleling technique with a film holder such as a hemostat or Snap-A-Ray
C)The bisecting-angle technique with a film holder such as a hemostat or Snap-A-Ray - B)The paralleling
technique with a film holder such as a hemostat or Snap-A-Ray
If a patient is suspected of having a bone lesion, such as a cyst, in the posterior area of the
mandible,which of the following films would give the best indication of the facial or lingual bony
expansion? - B) A mandibular occlusal film
A patient presents with an extremely large maxilary torus. You are not able to place the pariapical films
a normal. What should you do? - A)Move the film to the opposite side of the torus
, Who discovered the x-ray?
A)Otto Walkoff
B)Willhelm Conrad Roentgen
C)Pierre Fauchard
D)Charles Pincus - B) Willhelm Conrad Roentgen
WHEN was the first x-ray created?
A)December 8th 1995
B)November 8th 1895
C)December 8th 1995
D)November 8th 1995 - B)November 8th 1895
Digital dental technology uses ____% less radiation compared to conventional film - 50-80%
What can be created nor destroyed?
A)Matter
B)Radiation
C)Energy
D)Electrons - C)Energy
What has many forms;solids;liquids;gases
A)Radiation
B)Energy
C)Electrons
D)Matter - D)Matter
Digital Radiography Utilizes the following approach
a)Filmless radiographic computer imaging system
b)electronically charged plated imaging system
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