Mosby's Review NBDHE
Exam Tested Questions With
Revised Correct Detailed Answers
& Rationales
>Latest Update>>
1. Given a history of bruxism and the dental examination revealing flat occlusal
surfaces, which muscle would be expected to be prominent when examining the
face?
A) facial
B) masseter
C) buccinator
D) pterygomandibular
B) masseter
- overworked and hypertrophies with chronic bruxism
2. The relationship between herpes simplex 1 and herpes simplex 2 MOST closely
matches the relationship between?
A) measles and mumps
B) chickenpox and shingles
C) smallpox and chickenpox
B) chickenpox and shingles
- varicella zoster virus causes both chickenpox and shingles which are different
clinical manifestations of the same virus.
,3. When the oral cavity exhibits a reduction of saliva, all of the following are
potential findings EXCEPT one. Which one is the EXCEPTION?
A) caries
B) candidiasis
C) coated tongue
D) periodontal disease
D) periodontal disease
- multifactorial disease unrelated to xerostomia
4. In iron deficiency anemia, the loss of which type of papillae of the tongue
accounts for the red, beefy appearance?
A) fungiform
B) filiform
C) foliate
D) circumvallate
B) filiform
- the most numerous and have the highest metabolic requirements and disappear
early in iron deficiency anemia, causing the red, beefy appearance of the tongue.
5. Which neoplasm is a malignant tumor of bone forming tissue?
A) torus
B) rhabdomyosarcoma
C) osteosarcoma
D) osteoma
C) osteosarcoma
6. The best definition of a virus is?
A) a eukaryotic microorganism with branching hyphae
B) an acellular microorganism that requires a host for replication
C) a eukaryotic microorganism with the ability for locomotion
D) a prokaryotic MO that may exist single, in pairs, chains, or clusters
E) a photosynthetic cell classified by differences in pigmentation
,B) an acellular microorganism that requires a host for replication
- a virus is an acellular MO that requires the nuclear materials of the host to
replicate. Because viruses are not composed of cells, they are referred to as
acellular, in addition they do not contain the resources needed for replication and
so must use host cell resources to complete their replication.
7. The device that restricts the size of the x ray beam is called a/an?
A) dosimeter
B) aluminum filter
C) collimator
D) focusing cup
E) inherent filtration
C) collimator
8. Which intraosseous cyst occurs around the crown of an unerupted tooth?
A) eruption
B) primordial
C) dentigerous
D) globulomaxillary
C) dentigerous
9. Generalized aggressive periodontitis affects permanent first molars, incisors, or
both. Localized aggressive periodontitis affects most teeth.
A) both are true
B) both are false
C) first is true, second false
D) first is false, second true
B) both are false
- generalized form of aggressive periodontitis affects most teeth. The localized
form is confined mostly to the permanent first molars, incisors, or both
10. A drug that has an effect on the fetal development is said to have a/an
A) side effect
B) toxic effect
, C) therapeutic effect
D) teratogenic effect
E) idiosyncratic reaction
D) teratogenic effect
- a drug that causes adverse reaction in the developing fetus is termed
teratogenic effect. The FDA has ranked drugs into 5 pregnancy categories ABCD
and X ranked from least risky to most risky.
11. During oral examination, the patient is asked to occlude the teeth and
swallow. What is the reason for this?
A) assessment for fremitus
B) assessment for centric occlusion
C) assessment for mouth breathing
D) assessment for reverse swallowing
D) assessment for reverse swallowing
- the patient is asked to occlude the teeth and swallow to determine whether
tongue thrusting is a habit from reverse swallowing.
12. Which electrolytes are cations? (choose all that apply)
A) sodium
B) potassium
C) magnesium
D) phosphate
E) calcium
A) sodium
B) potassium
C) magnesium
E) calcium
- cations are electrolytes that have a positive charge
Exam Tested Questions With
Revised Correct Detailed Answers
& Rationales
>Latest Update>>
1. Given a history of bruxism and the dental examination revealing flat occlusal
surfaces, which muscle would be expected to be prominent when examining the
face?
A) facial
B) masseter
C) buccinator
D) pterygomandibular
B) masseter
- overworked and hypertrophies with chronic bruxism
2. The relationship between herpes simplex 1 and herpes simplex 2 MOST closely
matches the relationship between?
A) measles and mumps
B) chickenpox and shingles
C) smallpox and chickenpox
B) chickenpox and shingles
- varicella zoster virus causes both chickenpox and shingles which are different
clinical manifestations of the same virus.
,3. When the oral cavity exhibits a reduction of saliva, all of the following are
potential findings EXCEPT one. Which one is the EXCEPTION?
A) caries
B) candidiasis
C) coated tongue
D) periodontal disease
D) periodontal disease
- multifactorial disease unrelated to xerostomia
4. In iron deficiency anemia, the loss of which type of papillae of the tongue
accounts for the red, beefy appearance?
A) fungiform
B) filiform
C) foliate
D) circumvallate
B) filiform
- the most numerous and have the highest metabolic requirements and disappear
early in iron deficiency anemia, causing the red, beefy appearance of the tongue.
5. Which neoplasm is a malignant tumor of bone forming tissue?
A) torus
B) rhabdomyosarcoma
C) osteosarcoma
D) osteoma
C) osteosarcoma
6. The best definition of a virus is?
A) a eukaryotic microorganism with branching hyphae
B) an acellular microorganism that requires a host for replication
C) a eukaryotic microorganism with the ability for locomotion
D) a prokaryotic MO that may exist single, in pairs, chains, or clusters
E) a photosynthetic cell classified by differences in pigmentation
,B) an acellular microorganism that requires a host for replication
- a virus is an acellular MO that requires the nuclear materials of the host to
replicate. Because viruses are not composed of cells, they are referred to as
acellular, in addition they do not contain the resources needed for replication and
so must use host cell resources to complete their replication.
7. The device that restricts the size of the x ray beam is called a/an?
A) dosimeter
B) aluminum filter
C) collimator
D) focusing cup
E) inherent filtration
C) collimator
8. Which intraosseous cyst occurs around the crown of an unerupted tooth?
A) eruption
B) primordial
C) dentigerous
D) globulomaxillary
C) dentigerous
9. Generalized aggressive periodontitis affects permanent first molars, incisors, or
both. Localized aggressive periodontitis affects most teeth.
A) both are true
B) both are false
C) first is true, second false
D) first is false, second true
B) both are false
- generalized form of aggressive periodontitis affects most teeth. The localized
form is confined mostly to the permanent first molars, incisors, or both
10. A drug that has an effect on the fetal development is said to have a/an
A) side effect
B) toxic effect
, C) therapeutic effect
D) teratogenic effect
E) idiosyncratic reaction
D) teratogenic effect
- a drug that causes adverse reaction in the developing fetus is termed
teratogenic effect. The FDA has ranked drugs into 5 pregnancy categories ABCD
and X ranked from least risky to most risky.
11. During oral examination, the patient is asked to occlude the teeth and
swallow. What is the reason for this?
A) assessment for fremitus
B) assessment for centric occlusion
C) assessment for mouth breathing
D) assessment for reverse swallowing
D) assessment for reverse swallowing
- the patient is asked to occlude the teeth and swallow to determine whether
tongue thrusting is a habit from reverse swallowing.
12. Which electrolytes are cations? (choose all that apply)
A) sodium
B) potassium
C) magnesium
D) phosphate
E) calcium
A) sodium
B) potassium
C) magnesium
E) calcium
- cations are electrolytes that have a positive charge
