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50 Cards in this Set
- Front
- Back
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Each of the following statements regarding occlusal radiographs is correct EXCEPT one. Which one is the exception?
a. They do not require the use of an image receptor holder b. They image both the arches on a single film c. They may be either topographical or cross-sectional d. They are placed in the mouth between the occlusal surfaces of the maxillary and mandibular teeth |
B. They image both of the arches on a single film |
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Each of the following is a use of an occlusal radiograph EXCEPT one. Which one is the Exception?
a. Detecting Incipient interproximal decay b. Locating soft tissues calcification c. Assisting in the evaluation of fractures d. Revealing retained roots of extracted teeth |
A. Detecting Incipient interproximal decay |
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The topographical occlusal radiographic technique is similiar to what technique? |
Bisecting |
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An image receptor placed too far back in the mouth will result in not imaging the the:
a. Maxillary structures b. Mandibular structures c. Anterior structures d. posterior structures |
C. Anterior Structures |
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Elongation error results from which of the following?
a. Excessive vertical angulation using the bisecting technique b. Excessive vertical angulation using the paralleling technique c. Inadequate vertical angulation using the bisecting technique D. Inadequate vertical angulation using the paralleling technique |
C. Inadequate Vertical angulation using the bisecting technique |
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Failing to record the incisal or occlusal edges of the teeth on a periapical radiograph most likely results from an error made in which of the following steps?
a. Placement of the image receptor b. Horizontal Angulation c. Vertical Angulation d. Centering the x-ray beam |
Vertical Angulation |
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Cone Cutting of the radiographic image most likely results from an error made in which of the following steps?
a. Placement of the image receptor b. Horizontal angulation c. Vertical Angulation d. Centering the x-ray beam |
D. Centering the x-ray beam |
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Overlapping of adjacent teeth on the radiographic image most likely results from an error made in which of the following steps?
a. Placement of the image receptor b. Horizontal angulation c. Vertical angulation d. Centering the x-ray beam |
B. Horizontal Angulation |
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When using the paralleling technique excessive vertical angulation will result in: a. elongation of the teeth b. Foreshortening of the teeth c. Cutting off the apices of teeth d. cutting off the occlusal/ Incisal edges of the teeth |
D. Cutting off the occlusal/ Incisal edges of the teeth |
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When using film, the corrective action for a radiograph that displays a "tire track" pattern is to:
a. Thoroughly clean the rollers of the automatic processor b. Position the film intraorally with the tube side toward the source of radiation c. Carefully seperate the lead foil from the film packet before processing d. Lower the temperature of the processing chemicals |
B. Position the film intraorally with the tube side toward the source of radiation |
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Each of the following is a quality control measure EXCEPT one. Which one is the EXCEPTION
a. Dental x-ray machine output test b. Safelight evaluation c. Patient compliance determination d. Test for darkroom light leaks |
C. Patient Compliance Determination |
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Which of the following indicates a passed coin test?
a. No image of a coin b. A faint image of the coin c. An undistorted image of the coin d. A dark image of the coin |
A. No image of a coin |
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The Expiration date manufacturers place on radiograph film boxes indicates that films:
a. should not be used for patient exposures after this date b. May be safely used for one additional month after this date c. May be safely used for a 6 month period after this date d. May be used safely after performing a quality control test |
A. Should not be used for patient exposures after this date |
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A chemical that is capable of being broken down into harmless products by living organisms found in a wastewater treatment facility is considered:
a. Environmentally friendly b. User friendly c. Biodegradable d. neutral |
C. Biodegradable |
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Which of the following is NOT considered a hazardous waste?
a. Lead foils from film packets b. Used processing chemicals c. Broken digital sensors d. Discarded film mounts |
D. Discarded film mounts |
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Which of these does NOT need an OSHA hazard communication standard label?
a. Lead foil b. Developer c. Fixer d. Disinfectant |
A. Lead Foil |
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Accidentally mixing developer with fixer, even in minute droplets, will result in?
a. The release of an irritating sulphur dioxide gas b. Contamination of the processing chemicals c. lower-quality radiographs d. All of the above |
D. ALL of the ABove |
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All intra- and extraoral film should be stored in?
a. a lead-lined storage box b. A disinfectant drawer in the operatory c. The original packaging until ready for use d. The darkroom |
C. The original packaging until ready for use |
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From the following select the correct generalization that aids in mounting radiographs
a. Most roots curve toward the mesial b. Premolars have the longest roots when compared to adjacent teeth c. Maxillary anterior teeth are larger than mandibular anterior teeth d. Maxillary molars have two roots |
C. Maxillary anterior teeth are larger than mandibular anterior teeth |
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Which of these mandibular teeth generally have the longest roots?
a. Central incisors b. Lateral incisors c. Canines d. Premolars |
C. Canines |
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Which statement(s) regarding film mounting is (are) true?
a. It allows the radiographs to be viewed in a systematic order b. It helps to prevent lost films c. It provides a means for labeling the films with pertinent data d. All of the above |
D. All of the above |
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Which of these is NOT a normal radiographic landmark often imaged on intraoral radiographs
a. The maxillary sinus b. The mandibular Canal c. The nasal septum d. Occipital bone |
D. Occipital Bone |
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Which of the following bone type will appear the most radiopaque?
a. Cancellous b. Spongy c. Cortical d. Trabecular |
C. Cortical |
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Which of the following structures of the tooth appears the most radiopaque?
a. Cementum b. Enamel c. Dentin d. Pulp |
B. Enamel |
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Certain anatomical landmarks may or may not be imaged on dental radiographs depending on:
a. placement of the image receptor b. Patient positioning c. The angle of the x-ray beam d. All of the above |
D. All of the above |
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What is the thin radiopaque border that outlines the root of the tooth called?
a. The Trabeculae b. The periodontal ligament spce c. The alveolar Process d. The Lamina Dura |
D. Lamina Dura |
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Which of the following lists the structures in oder of decreasing radiopacity?
a. Pulp, dentin, cementum, enamel b. Enamel, dentin, cementum, pulp c. Pulp, Cementum, Dentin, Enamel d. Enamel, cementum, dentin, pulp |
B. Enamel, dentin, cementum, pulp |
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The oblique ridge is most likely to be recorded on an intraoral radiograph of the:
a. maxillary anterior region b. maxillary posterior region c. mandibular anterior region d. mandibular posterior region |
Mandibular posterior region |
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The zygomatic process is most likely to be recorded on an intraoral radiograph of the ?
a. Maxillary anterior region b. maxillary posterior region c. mandibular anterior region d. mandibular posterior region |
B. Maxillary posterior region |
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which of the following restorative materials appears the most radiolucent?
a. Silicate b. gutta-percha c. stainless steel crown d. Implants |
A. Silicate |
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Which of the following restorative material may appear radiopaque or radiolucent?
a. Amalgam b. Sealants c. Composite d. Gold |
C. Composite |
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Radiographs are helpful in revealing each of the following EXCEPT one. which one is the EXCEPTION?
a. Amalgam particles in soft tissue b. Bluish- colored gingiva c. Base material d. Overhanging restorations |
B. Bluish- colored gingiva |
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Which of the following restorative crown types appear the least radiopaque?
a. Porcelain fused to metal b. Full Metal c. Stainless steel d. Porcelain |
D. Porcelain |
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Which of the dental anomalies will not be recorded on a dental radiograph?
a. Dilaceration b. Mesiodens c. Gingival Recession d. Dens in dente |
C. Gingival Recession |
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On a radiograph, an amalgam tattoo may appear as an?
a. radiolucency b. radiopacity c. bluish- colored irregularity d. overhang |
B. Radiopacity |
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Which of the following terms mean " the abscence of teeth"
a. Supernumerary b. Anadontia c. Anomoly d. Mesiodens |
B. Anodontia |
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For caries to be imaged on a radiograph, approximately what percentage of calcium and phosphurous of the tooth structure must be lost?
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40-50% |
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Each of the following is a possible location of caries EXCEPT one. Which one is the EXCEPTION
a. Root b. Proximal c. Alveolar d. Occlusal |
C. Alveolar |
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The caries process demineralizes tooth structures, allowing black x-rays to through the tooth and blank the image receptor?
A. more, lighten B. More, darken C. Less, lighten d. Less, darken |
B. more, darken |
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When interpreting dental radiographs for caries, which section of the tooth surface should be examined for evidence of proximal caries
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At and just apical to the contact point of adjacent teeth |
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Which of the following local contributing factors for periodontal disease will not be detected
a. Widening of the PDL b. recession c. amalgam hangover d. calculus |
B. Recession |
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Bone loss between the roots of molar teeth is called?
a. triangulation b. furcation involvement c. Horizontal bone loss d. A local contributing factor |
B. Furcation involvement |
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What term is used to describe images other than anatomy or pathology that do not contribute to a diagnosis of the patient's condition?
a. artifacts b. Cone cuts c. double images d. pressure marks |
A. Artifacts |
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If using film, a blank image indicates that:
a. there was an overexposure to radiation b. there was no exposure to radiation c. a full dentures blocked the film from radiation d. the film was accidentally exposed to white light |
B. There was no exposure to radiation |
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If a film is accidently placed in the fixer before placing it in the developer, the resultant image will a. be light b. be dark c. be blank d. have a herringbone pattern |
C. Be blank |
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Which of these is NOT considered PPE?
a. Mask b. gloves c. eyewear d. Radiation monitoring device |
D. Radiation monitoring device |
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The ALARA concept implies that? |
Any radiation dose that can be reduced without major difficulty, great exposure, or inconvience, then should be reduced or eliminated |
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Which of the following statements would be acceptable communication with a patient?
"Your radiographs are too dark but we corrected the problem. Lets take them again |
............ |
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Which communication to a patient is contraindicated during radiographic procedures?
a. open wider please b. I need you to slowly close c. This wont hurt a bit d. Breath through your nose |
C. This wont hurt a bit |
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The radiographers attitude toward his or her own technical ability will also be conveyed
True or False |
TRUE |
