Page 1 of 105
ADEX CSCE OSCE Exam Study Guide
Practice Questions, Answers & Detailed
Explanations
Question 1
An FDNY permit is required for aerosol products in excess of which weight threshold?
A 50 pounds
B 75 pounds
C 100 pounds
D 200 pounds
Correct Answer: C 100 pounds
Rationale: A Certificate of Fitness (A-49) is required for any location with 100 pounds (1,600 ounces) or
more of aerosols in any number or type of containers. This threshold triggers the need for both a permit
and a Certificate of Fitness holder to supervise the storage, handling, and use of these products.
Question 2
What restorative material would you use for a patient with a large DO lesion who wants the most cost-
effective and longest-lasting restoration?
A Composite resin
B Glass ionomer
C Amalgam
D Gold inlay
Correct Answer: C Amalgam
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Rationale: Amalgam remains the most cost-effective and durable direct restorative material for large
posterior restorations. It has excellent wear resistance, high compressive strength, and longevity
comparable to cast restorations at a fraction of the cost.
Question 3
How often does OSHA require biological monitoring of the autoclave using spore testing?
A Daily
B Weekly
C Monthly
D Annually
Correct Answer: B Weekly
Rationale: OSHA and CDC guidelines mandate that dental offices perform biological monitoring of
sterilizers at least weekly using Geobacillus stearothermophilus spores to ensure proper sterilization
conditions are being achieved.
Question 4
A patient presents with no known allergies but has a previous cardiac valve replacement. What antibiotic
prophylaxis should be administered before the dental procedure?
A Single dose 600mg clindamycin
B Single dose 2g amoxicillin 30-60 minutes before
C Single dose 500mg azithromycin
D No prophylaxis needed
Correct Answer: B Single dose 2g amoxicillin 30-60 minutes before
Rationale: According to AHA guidelines, patients with prosthetic cardiac valves require antibiotic
prophylaxis before dental procedures. The standard regimen is 2g amoxicillin administered 30-60 minutes
prior to the procedure for non-allergic patients.
,Page 3 of 105
Question 5
A patient with a penicillin allergy and history of treated infective endocarditis requires dental treatment.
What medication should be prescribed for prophylaxis?
A Single dose 2g amoxicillin
B Single dose 300-600mg clarithromycin 30-60 minutes before
C Single dose 600mg clindamycin
D Single dose 500mg cefalexin
Correct Answer: B Single dose 300-600mg clarithromycin 30-60 minutes before
Rationale: For penicillin-allergic patients requiring IE prophylaxis, clarithromycin (300-600mg) or
azithromycin (500mg) are acceptable alternatives. The medication should be given 30-60 minutes before
the procedure.
Question 6
What lesion and treatment would you recommend for a patient presenting with white striations on the
buccal mucosa bilaterally?
A Leukoplakia, surgical excision
B Lichen planus, topical corticosteroids
C Frictional keratosis, tissue biopsy
D Lichenoid reaction, discontinue medication
Correct Answer: B Lichen planus, topical corticosteroids
Rationale: Bilateral white striations on the buccal mucosa (Wickham striae) are pathognomonic for oral
lichen planus. Treatment involves topical corticosteroids to manage symptomatic lesions and reduce
inflammation.
Question 7
What local anesthetic would be most appropriate for a patient with uncontrolled hypertension and
previous cardiac issues?
A Lidocaine with epinephrine
, Page 4 of 105
B Mepivacaine plain
C Articaine with epinephrine
D Prilocaine with epinephrine
Correct Answer: B Mepivacaine plain
Rationale: Mepivacaine without epinephrine is preferred in patients with uncontrolled hypertension and
cardiac issues because vasoconstrictors can elevate blood pressure and potentially precipitate cardiac
events. The plain formulation avoids these cardiovascular risks.
Question 8
What deficiency is commonly associated with hereditary hemorrhagic telangiectasia (HHT)?
A Vitamin B12 deficiency
B Iron deficiency
C Folate deficiency
D Vitamin K deficiency
Correct Answer: B Iron deficiency
Rationale: Patients with HHT develop iron deficiency anemia due to chronic bleeding from telangiectasias
in the gastrointestinal tract and nasal mucosa. The recurrent blood loss depletes iron stores over time.
Question 9
A patient develops a red rash and dots on the arm after taking antibiotics. Which medication is most
likely responsible for this reaction?
A Tetracycline
B Amoxicillin
C Metronidazole
D Clindamycin
Correct Answer: B Amoxicillin
ADEX CSCE OSCE Exam Study Guide
Practice Questions, Answers & Detailed
Explanations
Question 1
An FDNY permit is required for aerosol products in excess of which weight threshold?
A 50 pounds
B 75 pounds
C 100 pounds
D 200 pounds
Correct Answer: C 100 pounds
Rationale: A Certificate of Fitness (A-49) is required for any location with 100 pounds (1,600 ounces) or
more of aerosols in any number or type of containers. This threshold triggers the need for both a permit
and a Certificate of Fitness holder to supervise the storage, handling, and use of these products.
Question 2
What restorative material would you use for a patient with a large DO lesion who wants the most cost-
effective and longest-lasting restoration?
A Composite resin
B Glass ionomer
C Amalgam
D Gold inlay
Correct Answer: C Amalgam
,Page 2 of 105
Rationale: Amalgam remains the most cost-effective and durable direct restorative material for large
posterior restorations. It has excellent wear resistance, high compressive strength, and longevity
comparable to cast restorations at a fraction of the cost.
Question 3
How often does OSHA require biological monitoring of the autoclave using spore testing?
A Daily
B Weekly
C Monthly
D Annually
Correct Answer: B Weekly
Rationale: OSHA and CDC guidelines mandate that dental offices perform biological monitoring of
sterilizers at least weekly using Geobacillus stearothermophilus spores to ensure proper sterilization
conditions are being achieved.
Question 4
A patient presents with no known allergies but has a previous cardiac valve replacement. What antibiotic
prophylaxis should be administered before the dental procedure?
A Single dose 600mg clindamycin
B Single dose 2g amoxicillin 30-60 minutes before
C Single dose 500mg azithromycin
D No prophylaxis needed
Correct Answer: B Single dose 2g amoxicillin 30-60 minutes before
Rationale: According to AHA guidelines, patients with prosthetic cardiac valves require antibiotic
prophylaxis before dental procedures. The standard regimen is 2g amoxicillin administered 30-60 minutes
prior to the procedure for non-allergic patients.
,Page 3 of 105
Question 5
A patient with a penicillin allergy and history of treated infective endocarditis requires dental treatment.
What medication should be prescribed for prophylaxis?
A Single dose 2g amoxicillin
B Single dose 300-600mg clarithromycin 30-60 minutes before
C Single dose 600mg clindamycin
D Single dose 500mg cefalexin
Correct Answer: B Single dose 300-600mg clarithromycin 30-60 minutes before
Rationale: For penicillin-allergic patients requiring IE prophylaxis, clarithromycin (300-600mg) or
azithromycin (500mg) are acceptable alternatives. The medication should be given 30-60 minutes before
the procedure.
Question 6
What lesion and treatment would you recommend for a patient presenting with white striations on the
buccal mucosa bilaterally?
A Leukoplakia, surgical excision
B Lichen planus, topical corticosteroids
C Frictional keratosis, tissue biopsy
D Lichenoid reaction, discontinue medication
Correct Answer: B Lichen planus, topical corticosteroids
Rationale: Bilateral white striations on the buccal mucosa (Wickham striae) are pathognomonic for oral
lichen planus. Treatment involves topical corticosteroids to manage symptomatic lesions and reduce
inflammation.
Question 7
What local anesthetic would be most appropriate for a patient with uncontrolled hypertension and
previous cardiac issues?
A Lidocaine with epinephrine
, Page 4 of 105
B Mepivacaine plain
C Articaine with epinephrine
D Prilocaine with epinephrine
Correct Answer: B Mepivacaine plain
Rationale: Mepivacaine without epinephrine is preferred in patients with uncontrolled hypertension and
cardiac issues because vasoconstrictors can elevate blood pressure and potentially precipitate cardiac
events. The plain formulation avoids these cardiovascular risks.
Question 8
What deficiency is commonly associated with hereditary hemorrhagic telangiectasia (HHT)?
A Vitamin B12 deficiency
B Iron deficiency
C Folate deficiency
D Vitamin K deficiency
Correct Answer: B Iron deficiency
Rationale: Patients with HHT develop iron deficiency anemia due to chronic bleeding from telangiectasias
in the gastrointestinal tract and nasal mucosa. The recurrent blood loss depletes iron stores over time.
Question 9
A patient develops a red rash and dots on the arm after taking antibiotics. Which medication is most
likely responsible for this reaction?
A Tetracycline
B Amoxicillin
C Metronidazole
D Clindamycin
Correct Answer: B Amoxicillin
