OSCE DENTAL HYGIENE EXAM 2025/2026 NEWEST EXAM
340 QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT) /ALREADY GRADED A+
Question 1
A 45-year-old female client presents for her recare appointment. Her medical
history includes well-controlled hypertension and Type 2 Diabetes Mellitus.
Her current blood pressure is 130/80 mmHg. Which of the following is the
most appropriate action for the dental hygienist before proceeding with
treatment?
A) Immediately refer the client to her physician for blood pressure re-
evaluation.
B) Administer a prophylactic antibiotic.
C) Proceed with the scheduled dental hygiene care.
D) Recommend a stress reduction protocol, but proceed with caution.
E) Postpone treatment due to her medical history.
Correct Answer: C) Proceed with the scheduled dental hygiene care.
Rationale: The client's hypertension and diabetes are well-controlled,
and her current blood pressure (130/80 mmHg) is within acceptable
limits for routine dental hygiene care. No immediate medical
referral or postponement is indicated.
Question 2
A 6-year-old child presents for a dental hygiene appointment. During the
extraoral examination, the dental hygienist palpates enlarged, firm, non-
tender lymph nodes in the submandibular area bilaterally. The child's mother
states the child has had a "cold" for the past week. Which of the following is
the most appropriate action?
A) Immediately refer the child for a biopsy of the lymph nodes.
B) Document the findings and proceed with routine care, noting the
associated upper respiratory infection.
C) Postpone the appointment due to suspected infection.
D) Administer antibiotics proactively.
E) Refer the child to an allergist.
,Correct Answer: B) Document the findings and proceed with routine
care, noting the associated upper respiratory infection.
Rationale: Enlarged, firm, non-tender lymph nodes associated with a
recent upper respiratory infection (cold) are often reactive
lymphadenopathy and are a common, benign finding in children.
Documentation is important, but routine care can proceed.
Question 3
A 30-year-old male client presents with a chief complaint of generalized
gingival bleeding and tenderness. His medical history is non-contributory,
and he denies any new medications. Intraoral examination reveals
generalized moderate gingival inflammation with bleeding on probing. Which
of the following is the most appropriate initial diagnostic assessment?
A) Prescribe systemic antibiotics.
B) Order a panoramic radiograph.
C) Perform a comprehensive periodontal charting and collect a detailed oral
hygiene history.
D) Refer to a periodontist immediately.
E) Recommend immediate gingivectomy.
Correct Answer: C) Perform a comprehensive periodontal charting and
collect a detailed oral hygiene history.
Rationale: A comprehensive periodontal assessment (probing depths,
CAL, bleeding, recession, plaque/calculus indices) and
understanding the client's current oral hygiene practices are
essential to diagnose the extent and severity of gingivitis or
periodontitis and formulate a treatment plan.
Question 4
When developing an individualized oral hygiene instruction plan for a client
with generalized gingivitis and heavy plaque accumulation, which of the
following is the priority recommendation?
A) Daily flossing with waxed dental floss.
,B) Use of an electric toothbrush with a modified Bass technique.
C) Daily use of an antiseptic mouthrinse.
D) Professional power scaling twice a year.
E) Consumption of sugar-free chewing gum after meals.
Correct Answer: B) Use of an electric toothbrush with a modified Bass
technique.
Rationale: An electric toothbrush (especially oscillating-rotating or
sonic) coupled with a modified Bass technique (aiming bristles at
the gingival margin at a 45-degree angle) is highly effective for
plaque removal, which is the primary etiology of gingivitis.
Question 5
A 50-year-old client with a history of infective endocarditis is scheduled for
periodontal debridement. Which of the following is the most appropriate
action regarding antibiotic prophylaxis?
A) Administer a prophylactic antibiotic exactly 2 hours before the
appointment.
B) Administer a prophylactic antibiotic exactly 1 hour before the
appointment.
C) No antibiotic prophylaxis is needed for periodontal debridement.
D) Postpone the appointment and consult with the client's cardiologist.
E) Administer antibiotics immediately after the appointment.
Correct Answer: B) Administer a prophylactic antibiotic exactly 1 hour
before the appointment.
Rationale: Current guidelines from the American Heart Association
(AHA) recommend antibiotic prophylaxis for clients with a history of
infective endocarditis prior to dental procedures that involve
manipulation of gingival tissue or the periapical region of teeth.
Question 6
During a client assessment, you note a white lesion on the lateral border of
the tongue that cannot be scraped off. The client is a long-term smoker.
, Which of the following is the most appropriate initial action?
A) Inform the client it is likely harmless and monitor at subsequent
appointments.
B) Prescribe a topical antifungal medication.
C) Refer the client for immediate biopsy.
D) Document the finding and recommend smoking cessation, with re-
evaluation in 2 weeks.
E) Advise the client to use a stronger mouthrinse.
Correct Answer: D) Document the finding and recommend smoking
cessation, with re-evaluation in 2 weeks.
Rationale: A white lesion that cannot be scraped off, especially in a
smoker, could be leukoplakia, which has malignant potential. While
biopsy may be indicated if it persists, recommending smoking
cessation and observing for changes is a reasonable initial step
prior to a definitive biopsy if it doesn't resolve.
Question 7
A 70-year-old client presents with xerostomia (dry mouth) secondary to
Sjögren's Syndrome. Which of the following is the most appropriate
recommendation to manage their oral health?
A) Frequent consumption of sugary beverages to stimulate salivary flow.
B) Daily use of an alcohol-based mouthrinse.
C) Frequent sips of water, use of salivary substitutes, and fluoride varnish
applications.
D) Avoidance of toothbrushing to prevent gum irritation.
E) Exclusive use of sugar-free chewing gum.
Correct Answer: C) Frequent sips of water, use of salivary substitutes,
and fluoride varnish applications.
Rationale: Xerostomia significantly increases the risk of caries and
oral discomfort. Frequent hydration, salivary substitutes, and
340 QUESTIONS WITH DETAILED VERIFIED ANSWERS
(100% CORRECT) /ALREADY GRADED A+
Question 1
A 45-year-old female client presents for her recare appointment. Her medical
history includes well-controlled hypertension and Type 2 Diabetes Mellitus.
Her current blood pressure is 130/80 mmHg. Which of the following is the
most appropriate action for the dental hygienist before proceeding with
treatment?
A) Immediately refer the client to her physician for blood pressure re-
evaluation.
B) Administer a prophylactic antibiotic.
C) Proceed with the scheduled dental hygiene care.
D) Recommend a stress reduction protocol, but proceed with caution.
E) Postpone treatment due to her medical history.
Correct Answer: C) Proceed with the scheduled dental hygiene care.
Rationale: The client's hypertension and diabetes are well-controlled,
and her current blood pressure (130/80 mmHg) is within acceptable
limits for routine dental hygiene care. No immediate medical
referral or postponement is indicated.
Question 2
A 6-year-old child presents for a dental hygiene appointment. During the
extraoral examination, the dental hygienist palpates enlarged, firm, non-
tender lymph nodes in the submandibular area bilaterally. The child's mother
states the child has had a "cold" for the past week. Which of the following is
the most appropriate action?
A) Immediately refer the child for a biopsy of the lymph nodes.
B) Document the findings and proceed with routine care, noting the
associated upper respiratory infection.
C) Postpone the appointment due to suspected infection.
D) Administer antibiotics proactively.
E) Refer the child to an allergist.
,Correct Answer: B) Document the findings and proceed with routine
care, noting the associated upper respiratory infection.
Rationale: Enlarged, firm, non-tender lymph nodes associated with a
recent upper respiratory infection (cold) are often reactive
lymphadenopathy and are a common, benign finding in children.
Documentation is important, but routine care can proceed.
Question 3
A 30-year-old male client presents with a chief complaint of generalized
gingival bleeding and tenderness. His medical history is non-contributory,
and he denies any new medications. Intraoral examination reveals
generalized moderate gingival inflammation with bleeding on probing. Which
of the following is the most appropriate initial diagnostic assessment?
A) Prescribe systemic antibiotics.
B) Order a panoramic radiograph.
C) Perform a comprehensive periodontal charting and collect a detailed oral
hygiene history.
D) Refer to a periodontist immediately.
E) Recommend immediate gingivectomy.
Correct Answer: C) Perform a comprehensive periodontal charting and
collect a detailed oral hygiene history.
Rationale: A comprehensive periodontal assessment (probing depths,
CAL, bleeding, recession, plaque/calculus indices) and
understanding the client's current oral hygiene practices are
essential to diagnose the extent and severity of gingivitis or
periodontitis and formulate a treatment plan.
Question 4
When developing an individualized oral hygiene instruction plan for a client
with generalized gingivitis and heavy plaque accumulation, which of the
following is the priority recommendation?
A) Daily flossing with waxed dental floss.
,B) Use of an electric toothbrush with a modified Bass technique.
C) Daily use of an antiseptic mouthrinse.
D) Professional power scaling twice a year.
E) Consumption of sugar-free chewing gum after meals.
Correct Answer: B) Use of an electric toothbrush with a modified Bass
technique.
Rationale: An electric toothbrush (especially oscillating-rotating or
sonic) coupled with a modified Bass technique (aiming bristles at
the gingival margin at a 45-degree angle) is highly effective for
plaque removal, which is the primary etiology of gingivitis.
Question 5
A 50-year-old client with a history of infective endocarditis is scheduled for
periodontal debridement. Which of the following is the most appropriate
action regarding antibiotic prophylaxis?
A) Administer a prophylactic antibiotic exactly 2 hours before the
appointment.
B) Administer a prophylactic antibiotic exactly 1 hour before the
appointment.
C) No antibiotic prophylaxis is needed for periodontal debridement.
D) Postpone the appointment and consult with the client's cardiologist.
E) Administer antibiotics immediately after the appointment.
Correct Answer: B) Administer a prophylactic antibiotic exactly 1 hour
before the appointment.
Rationale: Current guidelines from the American Heart Association
(AHA) recommend antibiotic prophylaxis for clients with a history of
infective endocarditis prior to dental procedures that involve
manipulation of gingival tissue or the periapical region of teeth.
Question 6
During a client assessment, you note a white lesion on the lateral border of
the tongue that cannot be scraped off. The client is a long-term smoker.
, Which of the following is the most appropriate initial action?
A) Inform the client it is likely harmless and monitor at subsequent
appointments.
B) Prescribe a topical antifungal medication.
C) Refer the client for immediate biopsy.
D) Document the finding and recommend smoking cessation, with re-
evaluation in 2 weeks.
E) Advise the client to use a stronger mouthrinse.
Correct Answer: D) Document the finding and recommend smoking
cessation, with re-evaluation in 2 weeks.
Rationale: A white lesion that cannot be scraped off, especially in a
smoker, could be leukoplakia, which has malignant potential. While
biopsy may be indicated if it persists, recommending smoking
cessation and observing for changes is a reasonable initial step
prior to a definitive biopsy if it doesn't resolve.
Question 7
A 70-year-old client presents with xerostomia (dry mouth) secondary to
Sjögren's Syndrome. Which of the following is the most appropriate
recommendation to manage their oral health?
A) Frequent consumption of sugary beverages to stimulate salivary flow.
B) Daily use of an alcohol-based mouthrinse.
C) Frequent sips of water, use of salivary substitutes, and fluoride varnish
applications.
D) Avoidance of toothbrushing to prevent gum irritation.
E) Exclusive use of sugar-free chewing gum.
Correct Answer: C) Frequent sips of water, use of salivary substitutes,
and fluoride varnish applications.
Rationale: Xerostomia significantly increases the risk of caries and
oral discomfort. Frequent hydration, salivary substitutes, and
