NBDHE MOCK EXAM REVIEW
QUESTIONS WITH CORRECT
DETAILED ANSWERS
Which bacteria is MOST closely related to chronic periodontitis? - Answer- P. gingivalis
Alginate impression must be removed with a quick snap because this minimizes
distortion. - Answer- Both the statement and reason are correct and related
Amperage is the force that moves the electrons in a electrical circuit. Higher amperage
indicates that more electrons are present. - Answer- The first statement is false; the
second is true.
Voltage is the force that moves the electrons.
Which of the following conditions is NOT caused by a virus?
A.) Hand-foot-mouth disease
B.) Herpes labialis
C.) Infectious mononucleosis
D.) Candidiasis - Answer- D.) Candidiasis
In order to increase sharpness on a radiographic image, it is preferable to,
A.) Increase tube to object distance
B.) Increase the size of focal spot
C.) Increase object to film distance
D.) Use film with large crystals - Answer- A.) Increase tube to object distance
What is the most common scatter produced by dental radiation? - Answer- Compton
scatter
Which test is MOST widely used in conjunction with electric pulp testing to confirm pulp
vitality? - Answer- Cold test
According to the learning ladder model, at what level is behavior modified? - Answer-
Habit
Standard precaution provides protection against all of the following EXCEPT,
A.) Blood
,B.) Tears
C.) Saliva
D.) Sweat - Answer- D.) Sweat
The dependable variable is the outcome of interest. The independent variable is the
intervention of the experiment. - Answer- Both statements are true.
Systemic sampling - Answer- selects every nth member on a list.
Random sampling - Answer- gives every member an equal chance to be selected.
Stratified sampling - Answer- divides groups into subgroups before a selection.
Convenient sampling - Answer- selects subjects based on availability.
A teenage patient comes to the dental office and complains about the pain that radiates
through her jaw and neck. Upon examination, the clinician sees inflammation
surrounding the crown of a partially erupted third molar. This is most likely to be, -
Answer- Pericoronitis
Which condition caused by protein deficiency is characterized by edema in the
abdomen and legs? - Answer- Kwashiorkor
Needle-stick injury is a major cause of disease transmission to health care personnel.
Which of the following techniques is BEST to prevent such injury? - Answer- Scoop
recapping technique
A teenage patient just received a carpule of lidocaine. She suddenly feels itchy, her
breathing becomes heavy, and her pulse is weaker. The clinician quickly checks the
medical history and does not find any specific conditions that could cause such changes
in the patient. What could the clinician suspect? - Answer- Allergic reaction
Which type of food is MORE cariogenic?
A.) Gummy bears
B.) Bread
C.) Soda
D.) Water - Answer- A.) Gummy bears
Solar cheilitis is most likely to appear in, - Answer- Fair-skinned adults
Which inflammatory mediator is related to the destruction of the periodontium?
A.) Interleukin-1
B.) Tumor necrosis factor-a
C.) Interleukin-8
, D.) All of the above - Answer- D.) All of the above
A patient's blood pressure is 184/110 mmHg. You let the patient rest for 5 minutes, and
then recheck the blood pressure. If it is still 184/110 mmHg, what should you do? -
Answer- Refer to a doctor
What is the guideline in the administration of nitroglycerine? - Answer- Can be given up
to 3 tablets in 15 minutes
Which of the following agents is usually NOT related to gingival enlargement?
A.) Cyclosporine
B.) Phenytoin
C.) Methylprednisolone
D.) Calcium channel blocker - Answer- C.) Methylprednisolone
The lead diaphragm in the tube head is referred to as the, - Answer- Collimator
A sealant is usually placed on permanent molars as soon as they erupt in order to
prevent, - Answer- Class I caries
Which of the following is NOT a calcium channel blocker?
A.) Nifedipine
B.) Verapamil
C.) Diltiazem
D.) Enalapril - Answer- D.) Enalapril
Calcium channel blockers usually end with the suffix -pine
Angiotensin converting enzyme (ACE) inhibitors end with the suffix -pril
The following are the advice given to patients undergoing cancer therapy EXCEPT,
A.) Keep hydrating
B.) Brush immediately after vomiting
C.) Use sodium bicarbonate to raise the pH after vomiting
D.) Avoid spicy, salty, and hot food - Answer- B.) Brush immediately after vomiting
What is the total limit for occupational exposure to radiation per year? - Answer- 5 rem
Nasal pits are formed from the, - Answer- Nasal placodes
What describes proper positioning of the tongue during a panoramic radiograph? -
Answer- The tongue should be touching the roof of the palate
QUESTIONS WITH CORRECT
DETAILED ANSWERS
Which bacteria is MOST closely related to chronic periodontitis? - Answer- P. gingivalis
Alginate impression must be removed with a quick snap because this minimizes
distortion. - Answer- Both the statement and reason are correct and related
Amperage is the force that moves the electrons in a electrical circuit. Higher amperage
indicates that more electrons are present. - Answer- The first statement is false; the
second is true.
Voltage is the force that moves the electrons.
Which of the following conditions is NOT caused by a virus?
A.) Hand-foot-mouth disease
B.) Herpes labialis
C.) Infectious mononucleosis
D.) Candidiasis - Answer- D.) Candidiasis
In order to increase sharpness on a radiographic image, it is preferable to,
A.) Increase tube to object distance
B.) Increase the size of focal spot
C.) Increase object to film distance
D.) Use film with large crystals - Answer- A.) Increase tube to object distance
What is the most common scatter produced by dental radiation? - Answer- Compton
scatter
Which test is MOST widely used in conjunction with electric pulp testing to confirm pulp
vitality? - Answer- Cold test
According to the learning ladder model, at what level is behavior modified? - Answer-
Habit
Standard precaution provides protection against all of the following EXCEPT,
A.) Blood
,B.) Tears
C.) Saliva
D.) Sweat - Answer- D.) Sweat
The dependable variable is the outcome of interest. The independent variable is the
intervention of the experiment. - Answer- Both statements are true.
Systemic sampling - Answer- selects every nth member on a list.
Random sampling - Answer- gives every member an equal chance to be selected.
Stratified sampling - Answer- divides groups into subgroups before a selection.
Convenient sampling - Answer- selects subjects based on availability.
A teenage patient comes to the dental office and complains about the pain that radiates
through her jaw and neck. Upon examination, the clinician sees inflammation
surrounding the crown of a partially erupted third molar. This is most likely to be, -
Answer- Pericoronitis
Which condition caused by protein deficiency is characterized by edema in the
abdomen and legs? - Answer- Kwashiorkor
Needle-stick injury is a major cause of disease transmission to health care personnel.
Which of the following techniques is BEST to prevent such injury? - Answer- Scoop
recapping technique
A teenage patient just received a carpule of lidocaine. She suddenly feels itchy, her
breathing becomes heavy, and her pulse is weaker. The clinician quickly checks the
medical history and does not find any specific conditions that could cause such changes
in the patient. What could the clinician suspect? - Answer- Allergic reaction
Which type of food is MORE cariogenic?
A.) Gummy bears
B.) Bread
C.) Soda
D.) Water - Answer- A.) Gummy bears
Solar cheilitis is most likely to appear in, - Answer- Fair-skinned adults
Which inflammatory mediator is related to the destruction of the periodontium?
A.) Interleukin-1
B.) Tumor necrosis factor-a
C.) Interleukin-8
, D.) All of the above - Answer- D.) All of the above
A patient's blood pressure is 184/110 mmHg. You let the patient rest for 5 minutes, and
then recheck the blood pressure. If it is still 184/110 mmHg, what should you do? -
Answer- Refer to a doctor
What is the guideline in the administration of nitroglycerine? - Answer- Can be given up
to 3 tablets in 15 minutes
Which of the following agents is usually NOT related to gingival enlargement?
A.) Cyclosporine
B.) Phenytoin
C.) Methylprednisolone
D.) Calcium channel blocker - Answer- C.) Methylprednisolone
The lead diaphragm in the tube head is referred to as the, - Answer- Collimator
A sealant is usually placed on permanent molars as soon as they erupt in order to
prevent, - Answer- Class I caries
Which of the following is NOT a calcium channel blocker?
A.) Nifedipine
B.) Verapamil
C.) Diltiazem
D.) Enalapril - Answer- D.) Enalapril
Calcium channel blockers usually end with the suffix -pine
Angiotensin converting enzyme (ACE) inhibitors end with the suffix -pril
The following are the advice given to patients undergoing cancer therapy EXCEPT,
A.) Keep hydrating
B.) Brush immediately after vomiting
C.) Use sodium bicarbonate to raise the pH after vomiting
D.) Avoid spicy, salty, and hot food - Answer- B.) Brush immediately after vomiting
What is the total limit for occupational exposure to radiation per year? - Answer- 5 rem
Nasal pits are formed from the, - Answer- Nasal placodes
What describes proper positioning of the tongue during a panoramic radiograph? -
Answer- The tongue should be touching the roof of the palate
