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NBDHE BOARD QUESTIONS AND ANSWERS
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NBDHE BOARD QUESTIONS AND ANSWERS
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NBDHE BOARD QUESTIONS AND ANSWERSA drug ending in the suffix 'pril is considered a
A. Antibiotic
B.ace inhibitor
C. Anti fungal
D. Beta antagonist - answers -b. Ace inhibitor
Which of the following is not considered to be a risk factor for a type 1 diabetic?
A. Diet
B. Genetics
C. Autoimmune
D. Environmental - answers -a. Diet
Type 2 diabetes accounts for approximately what percentage of all cases of diabetes in
adults?
A. 25-30%
B/ 35-40%
C. 55-60%
D. 90-95% - answers -d. 90-95%
Which of the following is not considered to be a risk factor for a type 2 diabetic?
A. Increased age
B. Obesity
C. Smoking
D. Physical inactivity - answers -c. Smoking
What percentage of women with gestational diabetes are diagnosed with type 2
diabetes following their pregnancy?
A. <5%
B. 5-10%
C. 20-25%
D. 25-30% - answers -b. 5-10%
Untreated diabetes may result in all of the following except:
A. Blindness
B. Cardiovascular disease
C. Kidney disease
D. Tinnitus - answers -d. Tinnitus
-ringing of the ears
Prediabetes is associated with all of the following except:
A. Increased risk of developing type 2 diabetes
B. Impaired glucose tolerance
,C. Increased risk of heart disease and stroke
D. Increased risk of developing type 1 diabetes - answers -d. Increased risk of
developing type 1 diabetes
-persons with elevated glucose levels that do not yet meet the criteria for diabetes are
considered to have prediabetes and are at increased risk for type 2 diabetes, not type 1
What term describes a molecule that is not immunogenic by itself, but can react with a
specific antibody?
A. Complement
B. Hapten
C. Interleukin
D. Immunoglobulin - answers -b. Hapten
Which of the following fluoride applications would be contraindicated for use on
porcelain and composite restorations?
A. 0.4% snf2 (brush on or tray)
B. 0.05% apf (tray)
C. 1.1% naf (brush on or tray)
D. 0.05% naf (rinse) - answers -b. 0.05% apf
-this is due to its low ph of 3.5 which may cause etching or pitting of porcelain and
composite restorations
A radiographic examination reveals a radiolucent area in the region of the mandibular
left third molar. The third molar is not present. The clinical differential diagnoses should
include each of the following except one. Which one is the exception?
A. Ameloblastoma
B. Residual cyst
C. Odontogenic keratocyst
D. Dentigerous cyst - answers -d. Dentigerous cyst
The most external layer of alveolar bone is the:
A. Spongy bone
B. Spicule bone
C. Cortical bone
D. Woven bone
E. Cribriform plate - answers -c. Cortical
The first succedaneous tooth to erupt is the:
A. Perm. Max central incisor
B. Prim. Mand central incisor
C. Perm. Mand central incisor - answers -c. Perm. Mand central incisor
The glenoid fossa is an oval cavity or a depression in the
,A. Maxilla, just anterior to the molar process
B. Temporal bone
C. Mandible
D. Occipital bone - answers -b. Temporal bone
The erupted dentition of a normally developed 7- year-old child usually consists of
A. 8 primary and 8 permanent teeth.
B. 10 primary and 10 permanent teeth.
C. 12 primary and 8 permanent teeth.
D. 18 primary and 6 permanent teeth.
E. 20 primary teeth. - answers -d. 18 primary and 6 permanent teeth
A common oral manifestation of addisions disease is
A. Melanosis
B. Xerostomia
C. Glossodynia
D. Cotton-wool bone - answers -a. Melanosis
An individual with mitral regurgitation will most likely suffer from which of the following?
A. Decrease heart rate
B. Fluid congestion in lungs
C. Peripheral edema
D. Ventricular arrythmias - answers -b. Fluid congestion in lungs
The largest and longest cusp in posterior teeth is the:
A. Mesiolingual cusp of max. 1st molar
B. Distolingual cusp of max. 1st molar
C. Mesiofacial cusp of mand. 1st molar
D. Distofacial cusp of mand. 1st molar - answers -a. Mesiolingual cusp of maxillary 1st
molar
Which of the following teeth in the permanent dentition normally have trifurcations?
A. Mand. Molars only
B. Mand. Second premolars
C. Mand. Molars and max. 1st premolars
D. Max. Molars and max. 1st preomars
E. Max. 1st and 2nd molars and some max. 3rd molars - answers -e. Max 1st and 2nd
molars and some max. 3rd molars
An individual with addisions disease is most likely to experience which of the following?
A. Decreased acth levels
B. Hypoglycemia
C. Water retention
D. Weight gain - answers -b. Hypoglycemia
, Dry heat destroys organisms primarily by:
A. Lysis
B. Oxidation
C. Precipitation of salts
D. Dissolving of cell membranes
E. Denaturation of proteins - answers -e. Denaturation of proteins
Which of the following premolars frequently has only one pulp horn?
A. Max. 1st premolar
B. Mand. 1st premolar
C. Max. 2nd premolar
D. Mand. 2nd premolar - answers -b. Mand. 1st premolar
In what cell phase is the cell highly active and growing?
A. Anaphase
B. Interphase
C. Metaphase
D. Prophase - answers -b. Interphase
Where is smooth muscle found in the body?
A. Heart
B. Attached to bone
C. Walls of hollow organs
D. Discs between vertebrae - answers -c. Walls of hollow organs
A local anesthetic block is needed fot a debridement in the lower right quadrant. What is
an anatomical landmark used when administering this injection?
A. Glossopalatine arch
B. Retromolar pad
C. Pterygomandibular raphe
D. Pharyngopalatine arch - answers -c. Pterygomandibular raphe
Which of the following describes a wedge-shaped biochemical loss that often occurs on
the cervical portion of the maxillary right canine and premolars?
A. Abrasion
B. Abfraction
C. Caries
D. Erosion - answers -b. Abfraction
Which tooth does not have a transverse ridge?
A. Maxillary canine
B. Max. 1st premolar
C. Max. 1st molar
D. Mand. 1st molar - answers -a. Maxillary canine
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