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Radiology

QuestionAnswer
To avoid overlap direct x-ray beam through the interproximal
when using the occlusal technique film is positioned white between the occlusal surfaces
Which of the following is a maxillary occlusion projection but not a mandibular Lateral
Elongation Long, infussient
Size 2 film total of _____ anterior 6
Horizontal side to side vertical up and down
which occlusion project is used to locate foreign body cross sectional
Maxillary topographical what degree 65
The appearance of a its finger is a flangioma
When film is reversed herringbone
a ref radiograph is used to evaluate developer strength
radiocluctant refers to the portion to the film that is black
The lingual cusp of the 1st molar used obscures the distal of the canine maxillary canine
The film emulsion is softened during developer
A____ is a tube like a passage way thru the bone that contains nerves and fossa bone
A foreman is a opening or hole in the bone that permits the blood vessel
A_____ is a bony wall that divides two walls septum
how does a sature appear radioluctant
The lateral fassa is located between maxillary lateral incisor and canine
The inverted Y refers to the nasal cavity and maxillary sinus
Hydroquine generates black tones and Sharpe contrast
The fixer is removing unexposed silver hyaloid crystals
The accelerator the developer is sodium carbonate
KVP (strength) represents the amount of energy that passes through the tube head and where MA (many) refers to the strength of the energy being passed through the tube head None are true
Developer solution decreases the decrees in strength
Potassium bromoimide restrainer
Fixer but not developer alum
Softens emulsions sodium carbonate
lingual mounting method labial
When overlap contacts occur horizontal
Bisection size 2 for post anterior
radiation is defined as a form of energy carried by waves or streams or particles
The importance of dental radiographs many diseases are typically only discovered through this type of radiographs
The Xray was discovered by Willheim Roentgen
The first person in the USA exposed to dental radiograph was Edmund Kells
the formation of a latent image The film is placed in the lingual of the teeth
The latent image is stored by the ______ in the dental X-ray film Silver Halide crystals
The areas of the film that are more energized are darker
The areas of the film that are less energized are lighter
______ film is placed inside the mouth Intraoral film
A two film packet requires _____ exposure time as a one film packet the same
The identification dot is used to determine film orientation
The tube side of the dental film packet solid white
The type of intraoral film used to examine the crowns of both the maxillary and the mandibular teeth on one film bite wing film
The apex (tip) of the tooth roots may be seen on which types of intro film periodical
Which type of intramural film is best for visualizing inter proximal surfaces bite wing
A # ___ size film is a standard adult periodical film 4
Which size of bitewing film is use to examine posterior teeth in very small children 0
A size # ____ film is the most frequently used bite wing film 2
a fast film responds more quickly than a slow film because The silver halide crystals in the emulsion are larger
film is best stored in a n area that it cool and dry
the film base is __ mm thick 0.2
the film emulsion is attached to both sides of the film
The film emulsion is composed of homogenous mixture of Gelation and silver halide crystal
Retakes resulting in unnecessary patient exposure to x-radiation must be avoided at all times
to avoid occupational exposure to x-rediation the radiographer must always avoid the primary beam
radiographs enable the dental professional to see ____ conditions that may otherwise go undetected many
When radiographs are properly prescribed,exposed, and processed the benefit of disease detection __ the risk of small does of x radiation far outweighs
The position indicating device (PID) is an extension of the tubehead
The____ activates the machine to produce X-rays exposure button
during an exposure a beep sound to signal initiations of the exposure
the film holder is required when using the intraoral paralleling technique
the _____ intraoral radiographic examination is used to examine the entire tooth and supporting bone periapicle
______ is a extra oral technique for radiographic examination panoramic
periapical radiographs must show the entire crowns and roots of the teeth being examined as well as _____ to ____ mm beyond the root apices 2.0 :3.0
There are _____ methods for obtaining periodical radiographs two
which of the following methods is/ are used for obtaining periapicle radiographs both a and b (bisecting and paralleling
In a patient without teeth ____ periapicle usually sufficient to cover edentulous areas 14
The rule of isometry states that two triangles are equal if they have ____ equal angles and share a common side. two
Which size film is traditionally used with the bisecting technique #2 film for anterior teeth and for posterior teeth
With the ___ technique, the vertical angulation is determined by the imaginary bisector the central ray is directed perpendicular to the plane of the film
elongnatated images refer to the images of he teeth that appear _____. elongation of images result from ______ vertical angulation. too long insufficient
When the bisecting technique is used the film must be placed along the ____ surface of the tooth lingual
with size 2 film a total of ____ anterior film placements are used in the bisecting technique six
according to the text the disadvantages of the bisecting technique outweigh the advantages. there fore the paralleling technique is proffered over the bisecting technique for exposure of pereipical film and should be used whoever possible both statements are true
horizontal angulation refers to the placement of the position indication device (PID) in an ____ plane. Vertical angulation refers to the positioning of the PID in an ____ plane side to side up and down
for the maxillary premolar exposure the front edge of the film should be aligned with the midline of the maxillary canine
when the bisecting technique is used which of the following angles is bisected the angle formed by the film and the long axis of the tooth
for the mandibular molar exposure the front edge of the film should be aligned with the midline of the second premolar
when the bisecting technique is used the central ray is directed at 90 degrees the imaginary bisector
Parallel is defined as: Moving or lying in the same plane, always separated by the same distance and not intersecting.
Anterior film placements are less likely to cause the patient to gag. Once the gag reflex is stimulated, the patient may gag on films that could normally be tolerated. The first statement is false; the second statement is true.
With size1 film, a total of ____ anterior film placements are used in the paralleling technique. Seven
With the size 2 film, a total of ___ anterior film placements are used with the paralleling technique. Six
____ posterior film placements are used in the paralleling technique. Eight
The lingual cusp of the first premolar usually obscures the distal contact of the canine on the ____ exposure. Maxillary incisor
The entire crowns and roots of one lateral and one central incisor, including the apices of the teeth and surrounding structures, must be seen on the ___ radiograph. Maxillary incisor
All crowns and roots of the first, second and third molars, including the apices, alveolar crests, contact areas, surrounding bone, and tuberosity region, must be seen on the ____ radiograph. Maxillary molar
Reusable film holders must be ____ after each use. Sterilized
Which of the following film holders include aiming rings that aid in the alignment of the position-indicating device )PID) with the film. Rinn XCP instruments
An exposed film appears: Clear
To prevent a dropped film corner: Make certain the edge of the film is placed parallel to the incisor-occlusal surface of the teeth.
When overlapped contacts appear on film, the cause is: Incorrect horizontal angulation.
To avoid overlapped contacts on periodical film: Direct the x-ray beam through the inter proximal regions.
Short teeth with blunted roots appear of the film when: The vertical angulation is excessive.
Long, distorted teeth appear on the film when: The vertical angulation is insufficient.
A cone cut occurs when: The PID was not properly aligned with the periapical film holder.
The appearance of a patients's finger on the film is called a: Phalangioma
Blurred images appear on the film when: There is patient movement.
When the film is reversed, the image will be: Light with a herringbone pattern.
Which of the following films would most likely appear black? A film exposed to light
An underexposed film results from: Insufficient exposure time.
The occlusal technique is used to examine: Large areas of the upper or lower jaw
For the maxillary topographic occlusal projection, the central ray is directed at ___degrees. +65
The dental radiograph is a ___-dimnesional picture of a ___-dimensional object. Two; three
The buccal object rule depends on a ____ image shift when trying to locate vertically aligned images. With the buccal object rule, an object to the buccal of the reference object will move in the ____ direction as the shift. Vertical; opposite
The "S" in row mnemonic SLOB stands for: Same
According to the SLOB rule, when two radiographs are compared, the object that lies to the lingual appears to have moved in the same direction as the position-indicating device (PID), and the object that lies to the buccal appears to have moved in the opp Both statements are true.
For the mandibular topographic occlusal projection, position the PID so the the central ray is directed ___ degrees towards the center of the film. -55
Which occlusal projection is used to locate foreign bodies or salivary stones in the region of the floor of the mouth> Lateral occlusal projection
The bite-wing tab is a heavy paperboard tab or loop fitted around a periodical film and used to stabilize the film during exposure. The periodical film is oriented in the bite loop so that the tab portion extends from the white side (tube side) of the fi Both Statements are true
Which of the following exposures sequences is recommended for the patient who requires both periodical and bite-wing radiographs? Bite-wing exposures, Anterior periapical films, Posterior periapical films
Vertical bite-wings are often used for patients with: Mixed dentition.
What modifications in technique is recommended when the patient has an edentulous space causing a problem with bite-wing film placement? Place a cotton roll in te area of the missing tooth or teeth.
For the premolar bite-wing exposure, the front edge of the film should be aligned wth the midline of the : Mandibular canine
According to the text, which size bite-wing film is NOT recommended? Size 3
Created by: BonnieCSATC