NBDHE New Board Exam Questions (2026)
A drug ending in the suffix 'pril is considered a B. ACE inhibitor
A. antibiotic
B.ACE inhibitor
C. anti fungal
D. beta antagonist
Which of the following is NOT considered to be a risk A. diet
factor for a type 1 diabetic?
A. diet
B. genetics
C. autoimmune
D. environmental
Type 2 diabetes accounts for approximately what D. 90-95%
percentage of all cases of diabetes in adults?
A. 25-30%
B/ 35-40%
C. 55-60%
D. 90-95%
Which of the following is NOT considered to be a risk c. smoking
factor for a type 2 diabetic?
A. increased age
B. obesity
C. smoking
D. physical inactivity
What percentage of women with gestational diabetes are B. 5-10%
diagnosed with type 2 diabetes following their pregnancy?
A. <5%
B. 5-10%
C. 20-25%
D. 25-30%
Untreated diabetes may result in all of the following D. tinnitus
EXCEPT: -ringing of the ears
A. blindness
B. cardiovascular disease
C. kidney disease
D. tinnitus
Prediabetes is associated with all of the following except: D. increased risk of developing type 1 diabetes
a. Increased risk of developing type 2 diabetes -persons with elevated glucose levels that do not yet meet the criteria for diabetes
b. Impaired glucose tolerance are considered to have prediabetes and are at increased risk for type 2 diabetes,
c. Increased risk of heart disease and stroke not type 1
d. Increased risk of developing type 1 diabetes
diabetics are at increased risk of heart disease if they also A. smoke
a. smoke
b. have increased HDL cholesterol levels
c. take aspirin
D. consume increased fiber in diet
Which of the following types of immunoglobulins is the D. IgE
most responsible for promoting allergic reactions?
A. IgA how to remember: "Eeeek, I had an allergic reaction"
B. IgD
C. IgM
D. IgE
Which of the following types of immunoglobulins is located C. IgD
on the surface of most B-lymphocytes?
A. IgA
B. IgM
C. IgD
D. IgE
, NBDHE New Board Exam Questions (2026)
Which of the following types of immunoglobulins does NOT A. IgA
cross the barrier between mother and infant in the womb?
A. IgA
B. IgM
C. IgD
D. IgE
Which of the following is NOT an autoimmune disease? D. Alzheimers disease
A. Graves Disease
B. Myasthenia Gravis
C. Insulin-dependent diabetes mellitus
D. Alzheimers disease
T-cell activation requires a/an _____ cell B. accessory
A. Activation
B. Accessory
C. Plasma
D. Helper
Which of the following statements is FALSE regarding the D. limited blood within the lobules
spleen?
A. Divided up into lobules
B. Similar to a large lymph node
C. Contains macrophages
D. limited blood within the lobules
Which of the following is NOT considered a central location d. tibial
of lymph nodes?
A. cervical
b. axillary
c. inguinal
d. tibial
Lymphocytes that reach the thymus become a. t cells
a. t cells
b. b cells
c. plasma cells
d. beta cells
lymphocytes that do not reach the thymus become b. b cells
a. t cells
b. b cells
c. plasma cells
d. beta cells
Each of the following describes nitrous oxide EXCEPT d. it is explosive. not explosive on its own.
a. it is widely used by hospital anesthesiologists
b. it is not metabolized
c. minimally alters cardiac output
d. it is explosive
As an x-ray tube operates, electrons carry energy from the A. heat
cathode to the anode. Which of the following is most of this
energy converted to in the target?
A. heat
b. x-rays
c. electricity
D. visible light
which select group of antihypertensive medications has the c. ACE inhibitors
mechanism of action that involves blocking the conversion
of angiotensin I to II?
A. beta blockers
b. thaizides
c. ACE inhibitors
d. angiotensin receptor blockers
e. calcium channel blockers
, NBDHE New Board Exam Questions (2026)
What term describes a molecule that is not immunogenic B. Hapten
by itself, but can react with a specific antibody?
A. Complement
B. Hapten
C. Interleukin
D. Immunoglobulin
Which of the following fluoride applications would be B. 0.05% APF
contraindicated for use on porcelain and composite -this is due to its low pH of 3.5 which may cause etching or pitting of porcelain and
restorations? 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)
A radiographic examination reveals a radiolucent area in D. Dentigerous cyst
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
The most external layer of alveolar bone is the: C. Cortical
A. Spongy bone
B. Spicule bone
C. Cortical bone
D. Woven bone
E. Cribriform plate
The first succedaneous tooth to erupt is the: C. perm. mand central incisor
A. Perm. max central incisor
B. Prim. mand central incisor
C. Perm. mand central incisor
The glenoid fossa is an oval cavity or a depression in the B. temporal bone
A. maxilla, just anterior to the molar process
B. temporal bone
C. mandible
D. occipital bone
The erupted dentition of a normally developed 7- year-old D. 18 primary and 6 permanent teeth
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.
A common oral manifestation of Addisions disease is A. melanosis
A. melanosis
B. xerostomia
C. glossodynia
D. cotton-wool bone
An individual with mitral regurgitation will most likely suffer B. fluid congestion in lungs
from which of the following?
A. decrease heart rate
B. fluid congestion in lungs
C. peripheral edema
D. ventricular arrythmias
A drug ending in the suffix 'pril is considered a B. ACE inhibitor
A. antibiotic
B.ACE inhibitor
C. anti fungal
D. beta antagonist
Which of the following is NOT considered to be a risk A. diet
factor for a type 1 diabetic?
A. diet
B. genetics
C. autoimmune
D. environmental
Type 2 diabetes accounts for approximately what D. 90-95%
percentage of all cases of diabetes in adults?
A. 25-30%
B/ 35-40%
C. 55-60%
D. 90-95%
Which of the following is NOT considered to be a risk c. smoking
factor for a type 2 diabetic?
A. increased age
B. obesity
C. smoking
D. physical inactivity
What percentage of women with gestational diabetes are B. 5-10%
diagnosed with type 2 diabetes following their pregnancy?
A. <5%
B. 5-10%
C. 20-25%
D. 25-30%
Untreated diabetes may result in all of the following D. tinnitus
EXCEPT: -ringing of the ears
A. blindness
B. cardiovascular disease
C. kidney disease
D. tinnitus
Prediabetes is associated with all of the following except: D. increased risk of developing type 1 diabetes
a. Increased risk of developing type 2 diabetes -persons with elevated glucose levels that do not yet meet the criteria for diabetes
b. Impaired glucose tolerance are considered to have prediabetes and are at increased risk for type 2 diabetes,
c. Increased risk of heart disease and stroke not type 1
d. Increased risk of developing type 1 diabetes
diabetics are at increased risk of heart disease if they also A. smoke
a. smoke
b. have increased HDL cholesterol levels
c. take aspirin
D. consume increased fiber in diet
Which of the following types of immunoglobulins is the D. IgE
most responsible for promoting allergic reactions?
A. IgA how to remember: "Eeeek, I had an allergic reaction"
B. IgD
C. IgM
D. IgE
Which of the following types of immunoglobulins is located C. IgD
on the surface of most B-lymphocytes?
A. IgA
B. IgM
C. IgD
D. IgE
, NBDHE New Board Exam Questions (2026)
Which of the following types of immunoglobulins does NOT A. IgA
cross the barrier between mother and infant in the womb?
A. IgA
B. IgM
C. IgD
D. IgE
Which of the following is NOT an autoimmune disease? D. Alzheimers disease
A. Graves Disease
B. Myasthenia Gravis
C. Insulin-dependent diabetes mellitus
D. Alzheimers disease
T-cell activation requires a/an _____ cell B. accessory
A. Activation
B. Accessory
C. Plasma
D. Helper
Which of the following statements is FALSE regarding the D. limited blood within the lobules
spleen?
A. Divided up into lobules
B. Similar to a large lymph node
C. Contains macrophages
D. limited blood within the lobules
Which of the following is NOT considered a central location d. tibial
of lymph nodes?
A. cervical
b. axillary
c. inguinal
d. tibial
Lymphocytes that reach the thymus become a. t cells
a. t cells
b. b cells
c. plasma cells
d. beta cells
lymphocytes that do not reach the thymus become b. b cells
a. t cells
b. b cells
c. plasma cells
d. beta cells
Each of the following describes nitrous oxide EXCEPT d. it is explosive. not explosive on its own.
a. it is widely used by hospital anesthesiologists
b. it is not metabolized
c. minimally alters cardiac output
d. it is explosive
As an x-ray tube operates, electrons carry energy from the A. heat
cathode to the anode. Which of the following is most of this
energy converted to in the target?
A. heat
b. x-rays
c. electricity
D. visible light
which select group of antihypertensive medications has the c. ACE inhibitors
mechanism of action that involves blocking the conversion
of angiotensin I to II?
A. beta blockers
b. thaizides
c. ACE inhibitors
d. angiotensin receptor blockers
e. calcium channel blockers
, NBDHE New Board Exam Questions (2026)
What term describes a molecule that is not immunogenic B. Hapten
by itself, but can react with a specific antibody?
A. Complement
B. Hapten
C. Interleukin
D. Immunoglobulin
Which of the following fluoride applications would be B. 0.05% APF
contraindicated for use on porcelain and composite -this is due to its low pH of 3.5 which may cause etching or pitting of porcelain and
restorations? 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)
A radiographic examination reveals a radiolucent area in D. Dentigerous cyst
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
The most external layer of alveolar bone is the: C. Cortical
A. Spongy bone
B. Spicule bone
C. Cortical bone
D. Woven bone
E. Cribriform plate
The first succedaneous tooth to erupt is the: C. perm. mand central incisor
A. Perm. max central incisor
B. Prim. mand central incisor
C. Perm. mand central incisor
The glenoid fossa is an oval cavity or a depression in the B. temporal bone
A. maxilla, just anterior to the molar process
B. temporal bone
C. mandible
D. occipital bone
The erupted dentition of a normally developed 7- year-old D. 18 primary and 6 permanent teeth
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.
A common oral manifestation of Addisions disease is A. melanosis
A. melanosis
B. xerostomia
C. glossodynia
D. cotton-wool bone
An individual with mitral regurgitation will most likely suffer B. fluid congestion in lungs
from which of the following?
A. decrease heart rate
B. fluid congestion in lungs
C. peripheral edema
D. ventricular arrythmias
