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NDAEB EXAM QUESTIONS AND ANSWERS
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NDAEB EXAM QUESTIONS AND ANSWERS
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NDAEB EXAM QUESTIONS AND ANSWERSIn relation to dental radiography, what term refers to the anatomical landmark used to
identify a maxillary canine periapical film? - answer- Maxillary Sinus
Prior to exposing a dental radiograph, placement of the lead apron over the patient
protects which tissues? - answer- Gonadal
A blood pressure cuff should be placed over which of the following arteries? - answer-
Brachial
What 3 factors are essential in order to produce accurate diagnostic casts? - answer-
Water to powder ratio, mixing time and water temperature
What is the name of the adhesive film that retains bacterial colonies to the teeth? -
answer- Pellicle
What radiograph image is most useful for inter proximal caries? - answer- Bitewing
Which fluid provides lubrication during movements of the TMJ? - answer- Synovial Fluid
What is the correct way to store scrap amalgam? - answer- In a tightly closed mercury
recycling container
In a steam sterilizer, the distilled water is converted to steam then condensed back into
liquid water. What happened to the condensed water? - answer- It is drained from the
sterilizer and discarded down the drain in the sink
A patient presents to the dental office with concerns about sensitivity on a lower canine
tooth. The dentist performs an exam and diagnosis gingival recession and abrasion on
the facial root surface of tooth 33. The patient has 100% coverage for diagnostic,
preventive and restorative services.
1. What is the etiology of the sensitivity?
2. What could cause the tooth pathology?
3. What term refers to the dentist regarding dental insurance?
4. The patient should be encouraged to use a dentifrice containing fluoride and which
other chemical agent? - answer- - Exposed dentinal tubules
- Use of an abrasive dentifrice
- Provider
- Potassium nitrate
A 24 year old patient presents for an emergency exam. During the interview it is noted
that he is a heavy smoker and under emotional stress. The clinical findings are : a
biofilm index of 3 with some ulceration of interdental papillae.
, 1. What condition does the patient have?
2. What is the recommended treatment?
3. What does the biofilm index assigned to the patient mean? - answer- 1) Necrotizing
periodontitis
2) Debridement, careful brushing at home, warm water rinses
3) Heavy biofilm accumulations on both tooth and gingival surfaces
A bite registration is taken to produce a reproduction of the ________ relationship of the
max and _____ teeth when the mouth is ________. Providing the dentist with an
accurate ______ relationship. - answer- occlusal
mand
occluded
centric
What are the 2 basic impression trays - answer- stock & custom
A quadrant tray covers _____ of an arch. A section tray covers the ______ portion of
the arch and a full-arch tray covers the entire arch. - answer- half
anterior
When would softened utility wax be added to the palate area of the impression tray? -
answer- For a patient with an unusually high palate
What type of impression tray allows the impression material to lock on mechanically? -
answer- perforated surface tray
An impression is a ______ reproduction of the structures and the model created from
the impression is a _______- reproduction of the structures. - answer- negative
positive
A _______ _____ and _____ _____ tray can be used for final impressions. - answer-
bite tray and triple tray
Alginate is an ________ hydrocolloid. It's shelf life is approximately ___ _____. Most
impressions must be poured up within an ______. - answer- irreversible
one year
hour
Imbition can occur if an impression is left in ______ it will _______ and _______.
Syneresis can occur if an impression is left in the _____ _____ causing it to the
_______. - answer- liquid
absorb
expand
open air
shrink
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