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NDAEB EXAM QUESTIONS AND ANSWERS
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NDAEB EXAM QUESTIONS AND ANSWERS NDAEB EXAM QUESTIONS AND ANSWERS NDAEB EXAM QUESTIONS AND ANSWERS
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NDAEB EXAMIn relation to dental radiography, what term refers to the anatomical landmark used to identify a
maxillary canine periapical film? -ANS Maxillary Sinus
Prior to exposing a dental radiograph, placement of the lead apron over the patient protects which
tissues? -ANS Gonadal
A blood pressure cuff should be placed over which of the following arteries? -ANS Brachial
What 3 factors are essential in order to produce accurate diagnostic casts? -ANS Water to powder ratio,
mixing time and water temperature
What is the name of the adhesive film that retains bacterial colonies to the teeth? -ANS Pellicle
What radiograph image is most useful for inter proximal caries? -ANS Bitewing
Which fluid provides lubrication during movements of the TMJ? -ANS Synovial Fluid
What is the correct way to store scrap amalgam? -ANS 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? -ANS 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? -ANS - 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? -ANS 1) Necrotizing periodontitis
2) Debridement, careful brushing at home, warm water rinses
3) Heavy biofilm accumulations on both tooth and gingival surfaces
A 7-year old falls down some stairs, and is immediately transported to a hospital dental facility. Clinical
exam reveals that tooth 11 has a fracture with pupal exposure and that 21 has been avulsed. The
patients father has the avulsed tooth.
1. For the re-implantation of the 21 to have the highest success rate, how quickly should it be placed
back into the alveolus?
2. How should the avulsed tooth be kept during transportation to the hospital?
3. What would be used to stabilize the re-implanted tooth?
, 4. What treatment would be correct for tooth 11? -ANS 1) Within 30 minutes
2) Wrapped in wet gauze
3) An acrylic splint
4) Calcium Hydroxide pulp cap and interim resin restoration
A 75 year-old patient presents at the dental office with a fractured 46. While reviewing the medical
history, the dental assistant notes that the patient has rheumatoid arthritis and type II diabetes. The
clinical exam also reveals generalized gingival recession, cervical tooth abrasion and several root caries.
1. What is the main cause of the patients oral conditions?
2. What is associated with the patients medical conditions?
3. What tooth brushing method should be recommended?4. Due to the patients disclosed medical
condition, the DA may suggest what oral aid? -ANS 1) Biofilm
2) Xerostomia
3) Bass sulcular
4) A modified toothbrush handle
A patient presents for a bridge preparation. The dentist administers the local anaesthetic them the DA
takes an impression of the lower left quad. Teeth 36 and 37 are missing and tooth 38 has drifted into
37's position. The bridge will go from 35 to tooth 38. The insurance plan provides 80% reimbursement
for this treatment.
1. What direction has tooth 38 drifted into?
2. What type of provisional restoration would be best for this patient?
3. What will the alginate impression be used for?
4. How many units will the patients bridge consist of? -ANS 1) Mesially
2) Custom acrylic
3) As a matrix for the provisional
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