NBDHE PRACTICE QUESTIONS BASED
ON MOSBY'S REVIEW QUESTIONS FOR
THE NBDHE TEXTBOOK 7
ELABORATED COMPLETE SOLUTIONS
PASSED 100%
which of the following compositions is used as a home whitening product?
A) 22% carbamide peroxide
B) 30% to 35% hydrogen peroxide
C) 35% hydrogen peroxide with silica
D) 30% calcium, phosphate, and fluoride ions
A) 22% carbamide peroxide
- home whitening products typically contain 10 - 22% carbamide peroxide
many veins in the head and neck region lack valves. Valveless veins of the head and neck
contribute to the severe and rapid spread of dental infections.
A) both statements are true
B) both statements are false
C) the first statement is true, second is false
D) first is false, second is true
A) Both statements are true
- most veins of the head and neck lack valves with the exception of the external jugular vein
Professional products are used to polish the restorations at every prophylaxis appointment
because these products will not abrade the restorations
A) both the statement and the reason are correct and related
B) both the statement and the reason are correct but not related
C) the statement is correct but the reason is not
D) the statement is not correct but the reason is correct
E) neither the statement nor the reason is correct
E) neither the statement nor the reason is correct
,- only restorations with visible scratches should be polished. Even polishing with fine paste may
abrade amalgam, porcelain, composite, glass ionomer, titanium, and gold restorations.
which of the following is the BEST choice of local anesthetic when performing a dental
procedure on a pregnant patient?
A) mepivacaine (carbocaine)
B) Lidocaine (xylocaine)
C) bupivacaine (marcaine)
D) articaine (septocaine)
B) Lidocaine (Xylocaine)
- category B drug (no evidence of risk in humans)
which oral antidiabetic agent needs to be administered for 6 - 14 weeks to reach its maximal
therapeutic effect?
A) rosiglitazone (avandia)
B) tolbutamide (orinase)
C) exenatide (byetta)
D) glimepiride (amaryl)
A) rosiglitazone (avandia)
- may take up to 6 - 14 weeks to achieve its maximum effect. Tolbutamide and Glimepiride work
much faster that rosiglitazone and Exenatide is not oral it is administered through subcutaneous
injection.
aspirin burn will appear
A) as a nonpainful, chronic lesion on the hard palate
B) as an acute, painful, white lesions on the buccal mucosa
C) as an acute, nonpainful, red lesion on the floor of the mouth
D) as a red and white, chronic painless lesion requiring biopsy
B) as an acute, painful, white lesions on the buccal mucosa
- caused by patient placing aspirin on the mucosa near a tooth that is painful producing a
chemical burn that is an acute, painful reaction.
which drugs antimicrobial action is based on its ability to inhibit cross linking of the
peptidoglycan chains in bacterial cell walls?
A) amoxicillin (amoxil)
B) clindamycin (cleocin)
,C) clarithromycin (biaxin)
D) ciprofloxacin (cipro)
E) gentamicin (garamycin)
A) amoxicillin (amoxil)
- like other penicillins, inhibits the enzymes transpeptidase, which catalyzes cross linking in
bacterial cell walls.
which drug or drug class is most likely to result in bone loss when administered chronically in
typical clinical doses?
A) alendronate (fosamax)
B) ethinyl estradiol (estinyl)
C) conjugated estrogens (premarin)
D) raloxifene (evista)
E) prednisone (deltasone)
E) prednisone (deltasone)
- as well as other glucocorticosteroids , promotes a negative calcium balance by decreasing
calcium absorption from the gastrointestinal tract. They also increase osteoclast activity and
decrease osteoblast activity in bone and have other mechanisms as well. These effects may and
often do lead to osteoprosis.
each of the following is used to treat asthma EXCEPT one. Which one is the EXCEPTION?
A) fluticasone (flonase)
B) metoprolol (lopressor)
C) salmeterol (serevent)
D) ipratropium (atrovent)
E) montelukast (singulair)
B) metoprolol (lopressor)
- this is a selective beta 1 adrenergic receptor blocker. Beta blockers are contraindicated in
asthma because by blocking the beta 2 adrenergic receptors in the lung, bronchoconstriction
may occur. Selective beta 1 adrenergic receptor blockers have primarily cardiac effects and are
less likely to cause bronchoconstriction than nonselective beta adrenergic receptor blockers.
These drugs should be still used with caution in patients with asthma, since these drugs have no
direct benefit in the relief of asthma symprtoms.
, which cyst does NOT have alveolar bone involvement?
A) nasopalatine canal
B) nasolabial
C) residual
D) radicular
B) nasolabial
- nasolabial cyst is a soft tissue cyst with no alveolar bone involvement (also known as a
peripheral cyst)
Raynaud phenomenon is characterized by all EXCEPT one. Which one is the EXCEPTION?
A) causes vasospasm of fingers and toes
B) causes tissue ischemia
C) is triggered by medications and hot temps
D) may occur with rheumatoid arthritis or systemic lupus erythematosus
C) is triggered by medications and hot temps
- raynaud phenomenon is triggered by stress or cold temp.
the patient is a 10 year old who presents with a body temp of 38 C (100.5 F). Treatment
considerations for this patient include
A) having the patient rinse with mouthwash before providing treatmeent
B) questioning the parent about recent exposure to others with infectious conditions
C) immediately referring the patient to a physician to minimize exposure to other patients
C) immediately referring the patient to a physician to minimize exposure to other patients
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
the relationship between herpes simplex 1 and herpes simplex 2 MOST closely matches the
relationship between?
ON MOSBY'S REVIEW QUESTIONS FOR
THE NBDHE TEXTBOOK 7
ELABORATED COMPLETE SOLUTIONS
PASSED 100%
which of the following compositions is used as a home whitening product?
A) 22% carbamide peroxide
B) 30% to 35% hydrogen peroxide
C) 35% hydrogen peroxide with silica
D) 30% calcium, phosphate, and fluoride ions
A) 22% carbamide peroxide
- home whitening products typically contain 10 - 22% carbamide peroxide
many veins in the head and neck region lack valves. Valveless veins of the head and neck
contribute to the severe and rapid spread of dental infections.
A) both statements are true
B) both statements are false
C) the first statement is true, second is false
D) first is false, second is true
A) Both statements are true
- most veins of the head and neck lack valves with the exception of the external jugular vein
Professional products are used to polish the restorations at every prophylaxis appointment
because these products will not abrade the restorations
A) both the statement and the reason are correct and related
B) both the statement and the reason are correct but not related
C) the statement is correct but the reason is not
D) the statement is not correct but the reason is correct
E) neither the statement nor the reason is correct
E) neither the statement nor the reason is correct
,- only restorations with visible scratches should be polished. Even polishing with fine paste may
abrade amalgam, porcelain, composite, glass ionomer, titanium, and gold restorations.
which of the following is the BEST choice of local anesthetic when performing a dental
procedure on a pregnant patient?
A) mepivacaine (carbocaine)
B) Lidocaine (xylocaine)
C) bupivacaine (marcaine)
D) articaine (septocaine)
B) Lidocaine (Xylocaine)
- category B drug (no evidence of risk in humans)
which oral antidiabetic agent needs to be administered for 6 - 14 weeks to reach its maximal
therapeutic effect?
A) rosiglitazone (avandia)
B) tolbutamide (orinase)
C) exenatide (byetta)
D) glimepiride (amaryl)
A) rosiglitazone (avandia)
- may take up to 6 - 14 weeks to achieve its maximum effect. Tolbutamide and Glimepiride work
much faster that rosiglitazone and Exenatide is not oral it is administered through subcutaneous
injection.
aspirin burn will appear
A) as a nonpainful, chronic lesion on the hard palate
B) as an acute, painful, white lesions on the buccal mucosa
C) as an acute, nonpainful, red lesion on the floor of the mouth
D) as a red and white, chronic painless lesion requiring biopsy
B) as an acute, painful, white lesions on the buccal mucosa
- caused by patient placing aspirin on the mucosa near a tooth that is painful producing a
chemical burn that is an acute, painful reaction.
which drugs antimicrobial action is based on its ability to inhibit cross linking of the
peptidoglycan chains in bacterial cell walls?
A) amoxicillin (amoxil)
B) clindamycin (cleocin)
,C) clarithromycin (biaxin)
D) ciprofloxacin (cipro)
E) gentamicin (garamycin)
A) amoxicillin (amoxil)
- like other penicillins, inhibits the enzymes transpeptidase, which catalyzes cross linking in
bacterial cell walls.
which drug or drug class is most likely to result in bone loss when administered chronically in
typical clinical doses?
A) alendronate (fosamax)
B) ethinyl estradiol (estinyl)
C) conjugated estrogens (premarin)
D) raloxifene (evista)
E) prednisone (deltasone)
E) prednisone (deltasone)
- as well as other glucocorticosteroids , promotes a negative calcium balance by decreasing
calcium absorption from the gastrointestinal tract. They also increase osteoclast activity and
decrease osteoblast activity in bone and have other mechanisms as well. These effects may and
often do lead to osteoprosis.
each of the following is used to treat asthma EXCEPT one. Which one is the EXCEPTION?
A) fluticasone (flonase)
B) metoprolol (lopressor)
C) salmeterol (serevent)
D) ipratropium (atrovent)
E) montelukast (singulair)
B) metoprolol (lopressor)
- this is a selective beta 1 adrenergic receptor blocker. Beta blockers are contraindicated in
asthma because by blocking the beta 2 adrenergic receptors in the lung, bronchoconstriction
may occur. Selective beta 1 adrenergic receptor blockers have primarily cardiac effects and are
less likely to cause bronchoconstriction than nonselective beta adrenergic receptor blockers.
These drugs should be still used with caution in patients with asthma, since these drugs have no
direct benefit in the relief of asthma symprtoms.
, which cyst does NOT have alveolar bone involvement?
A) nasopalatine canal
B) nasolabial
C) residual
D) radicular
B) nasolabial
- nasolabial cyst is a soft tissue cyst with no alveolar bone involvement (also known as a
peripheral cyst)
Raynaud phenomenon is characterized by all EXCEPT one. Which one is the EXCEPTION?
A) causes vasospasm of fingers and toes
B) causes tissue ischemia
C) is triggered by medications and hot temps
D) may occur with rheumatoid arthritis or systemic lupus erythematosus
C) is triggered by medications and hot temps
- raynaud phenomenon is triggered by stress or cold temp.
the patient is a 10 year old who presents with a body temp of 38 C (100.5 F). Treatment
considerations for this patient include
A) having the patient rinse with mouthwash before providing treatmeent
B) questioning the parent about recent exposure to others with infectious conditions
C) immediately referring the patient to a physician to minimize exposure to other patients
C) immediately referring the patient to a physician to minimize exposure to other patients
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
the relationship between herpes simplex 1 and herpes simplex 2 MOST closely matches the
relationship between?
