NBDHE EXAM PRACRICE QUESTIONS
WITH 100% VERIFIED SOLUTIONS
CURRENTLY TESTED AND APPROVED!!!
Each of the following is a case of endogenous staining except one. Which one is the
exception?
A.pulpal necrosis
B. Chlorhexidine
C. tetracycline ingested during tooth eruption
D. Internal resorption ---- ANSWER----B. Chlorhexidine
Which disinfectant leaves a film or residue on surfaces?
A. Phenols
B. Idophors
C. quaternary compounds
D. Chlorine based compounds ---- ANSWER----A. Phenols
Any emergency treatment of angina pectoris, the mechanism of action of nitroglycerine is:
A. relaxation of cardiac muscle
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,B. blocking Beta adrenergic receptors
C. Relaxation of vascular smooth muscle
D. reflex decrease in heart rate and contractility ---- ANSWER----C. Relaxation of vascular
smooth muscle
Which area specific gracy curet debrides the mesial, facial, and lingual surfaces of posterior
teeth
A. 7/8
B. 11/12
C. 13/14
D. 17/18 ---- ANSWER----B. 11/12
Malocclusion occurs in all of the following except one. Which one is the exception?
A. Open bite
B. Midline shift
C. Dental crowding
D. Crossbite ---- ANSWER----C. Dental crowding
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,In Angle’s classification, what class has a molar relationship where the buccal groove of the
mandibular first permanent molar is mesial To the Mesiobuccally cusp of the maxillary first
permanent molar by at least the width of a premolar?
A. Class I
B. Class II division I
C. Class II division II
D. Class III ---- ANSWER----D. Class III
A blood pressure reading of 138/83 is classified as:
A. normal
B. elevated
C. Stage I hypertension
D. Stage II hypertension ---- ANSWER----C. Stage I hypertension
prophylactic antibiotic pre-medication is given to all of the following except one. Which one
is the exception?
A. Mitral valve prolapse
B. artificial heart valve
C. history of infective endocarditis
D. Cardiac transplant ---- ANSWER----A. Mitral valve prolapse
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, Rubber cup polishing is contraindicated in patients with all of the following except one.
Which one is the exception?
A. Xerostomia
B. Newly erupted teeth
C. Mild gingivitis
D. Exposed roots surfaces ---- ANSWER----B. Newly erupted teeth
Nitrous oxide tanks are
A. Blue
B. Green
C. White
D. Black ---- ANSWER----A. blue
Which of the following tooth stains is NOT caused by poor oral hygiene?
A. Green
B. Orange
C. Brown
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WITH 100% VERIFIED SOLUTIONS
CURRENTLY TESTED AND APPROVED!!!
Each of the following is a case of endogenous staining except one. Which one is the
exception?
A.pulpal necrosis
B. Chlorhexidine
C. tetracycline ingested during tooth eruption
D. Internal resorption ---- ANSWER----B. Chlorhexidine
Which disinfectant leaves a film or residue on surfaces?
A. Phenols
B. Idophors
C. quaternary compounds
D. Chlorine based compounds ---- ANSWER----A. Phenols
Any emergency treatment of angina pectoris, the mechanism of action of nitroglycerine is:
A. relaxation of cardiac muscle
Page | 1
,B. blocking Beta adrenergic receptors
C. Relaxation of vascular smooth muscle
D. reflex decrease in heart rate and contractility ---- ANSWER----C. Relaxation of vascular
smooth muscle
Which area specific gracy curet debrides the mesial, facial, and lingual surfaces of posterior
teeth
A. 7/8
B. 11/12
C. 13/14
D. 17/18 ---- ANSWER----B. 11/12
Malocclusion occurs in all of the following except one. Which one is the exception?
A. Open bite
B. Midline shift
C. Dental crowding
D. Crossbite ---- ANSWER----C. Dental crowding
Page | 2
,In Angle’s classification, what class has a molar relationship where the buccal groove of the
mandibular first permanent molar is mesial To the Mesiobuccally cusp of the maxillary first
permanent molar by at least the width of a premolar?
A. Class I
B. Class II division I
C. Class II division II
D. Class III ---- ANSWER----D. Class III
A blood pressure reading of 138/83 is classified as:
A. normal
B. elevated
C. Stage I hypertension
D. Stage II hypertension ---- ANSWER----C. Stage I hypertension
prophylactic antibiotic pre-medication is given to all of the following except one. Which one
is the exception?
A. Mitral valve prolapse
B. artificial heart valve
C. history of infective endocarditis
D. Cardiac transplant ---- ANSWER----A. Mitral valve prolapse
Page | 3
, Rubber cup polishing is contraindicated in patients with all of the following except one.
Which one is the exception?
A. Xerostomia
B. Newly erupted teeth
C. Mild gingivitis
D. Exposed roots surfaces ---- ANSWER----B. Newly erupted teeth
Nitrous oxide tanks are
A. Blue
B. Green
C. White
D. Black ---- ANSWER----A. blue
Which of the following tooth stains is NOT caused by poor oral hygiene?
A. Green
B. Orange
C. Brown
Page | 4
