Dental Hygiene OSCE QUESTIONS WITH
COMPLETE SOLUTIONS
Course
ADEX DSE OSCE
Question 1:
A patient presents with gingivitis. What is the most appropriate instruction you should
give them regarding oral hygiene?
A) Brush twice a week
B) Use mouthwash only
C) Brush twice a day and floss daily
D) Rinse with water after every meal
Answer: C) Brush twice a day and floss daily
Rationale: To manage gingivitis, patients should be instructed to brush twice daily and floss
daily to remove plaque and prevent gum inflammation.
Question 2:
You are conducting an oral cancer screening. Which of the following findings would be
most concerning?
A) A red patch on the gingiva
B) A white patch on the tongue
C) A small ulcer that has not healed in two weeks
D) All of the above
Answer: D) All of the above
Rationale: All the listed findings (erythroplasia, leukoplakia, and non-healing ulcers) are
concerning and could indicate the presence of oral cancer or precancerous conditions.
Question 3:
During a scaling procedure, you notice a significant amount of subgingival calculus.
What is your next best step?
A) Complete the scaling procedure
B) Refer the patient to a periodontist
C) Use an ultrasonic scaler
D) Schedule a follow-up appointment
,Answer: C) Use an ultrasonic scaler
Rationale: An ultrasonic scaler can effectively remove significant subgingival calculus due
to its efficiency and ability to access deeper pockets.
Question 4:
What is the primary purpose of using a disclosing agent during a patient assessment?
A) To make the teeth whiter
B) To highlight areas of plaque accumulation
C) To freshen the breath
D) To assess periodontal health
Answer: B) To highlight areas of plaque accumulation
Rationale: A disclosing agent temporarily stains plaque, helping the dental hygienist identify
areas needing better oral hygiene care.
Question 5:
A patient expresses concern about the sensitivity of their teeth after whitening
treatments. What advice should you provide?
A) Stop all whitening treatments
B) Use a desensitizing toothpaste
C) Increase the frequency of whitening
D) Apply fluoride varnish immediately
Answer: B) Use a desensitizing toothpaste
Rationale: Desensitizing toothpaste can help alleviate sensitivity following whitening
treatments by blocking the transmission of stimuli to the nerves.
Question 6:
Which of the following is the most effective method for a patient to clean between teeth?
A) Flossing
B) Interdental brushes
C) Water flosser
D) Toothpicks
Answer: B) Interdental brushes
Rationale: Interdental brushes are effective for cleaning between teeth, especially in larger
spaces or areas with more significant periodontal disease.
,Question 7:
A patient with diabetes presents with periodontal disease. What specific education
should you provide?
A) They should reduce their sugar intake
B) They need to visit the dentist less frequently
C) They should avoid all carbohydrates
D) Their diabetes management will not affect oral health
Answer: A) They should reduce their sugar intake
Rationale: Patients with diabetes should manage their sugar intake to maintain better overall
health, which can help control periodontal disease.
Question 8:
You are performing a periodontal assessment on a patient. What is the normal range
for probing depth in healthy gingival tissue?
A) 1-2 mm
B) 2-3 mm
C) 3-4 mm
D) 4-5 mm
Answer: B) 2-3 mm
Rationale: Healthy gingival tissue typically has probing depths of 1-3 mm, with 2-3 mm
considered normal for periodontal assessments.
Question 9:
What is the recommended fluoride application method for a patient with a high caries
risk?
A) Daily fluoride toothpaste
B) Professionally applied gel or foam every six months
C) Rinsing with fluoride mouthwash weekly
D) Fluoride varnish every three months
Answer: D) Fluoride varnish every three months
Rationale: For high caries risk patients, frequent fluoride varnish applications can
significantly reduce the incidence of caries.
, Question 10:
A patient complains of persistent bad breath (halitosis). Which of the following should
be your first recommendation?
A) Avoid eating garlic and onions
B) Increase fluid intake
C) Schedule a dental cleaning
D) Use mouthwash frequently
Answer: B) Increase fluid intake
Rationale: Increased fluid intake can help combat dry mouth, which is a common cause of
halitosis, and promote saliva production that naturally cleanses the mouth.
Question 11:
During a patient’s medical history review, which condition is most likely to complicate
dental treatment?
A) Hypertension
B) Asthma
C) Diabetes
D) Hyperlipidemia
Answer: C) Diabetes
Rationale: Diabetes can complicate dental treatment due to its association with periodontal
disease, delayed healing, and potential for infections, necessitating careful management.
Question 12:
What is the primary purpose of a periodontal probe in a clinical examination?
A) To measure the width of attached gingiva
B) To assess probing depth and attachment levels
C) To evaluate the condition of enamel
D) To identify areas of recession
Answer: B) To assess probing depth and attachment levels
Rationale: A periodontal probe is primarily used to measure probing depths, assess
periodontal status, and determine attachment levels around teeth.
Question 13:
A patient presents with a history of recurrent canker sores. What dietary advice should
you provide?
COMPLETE SOLUTIONS
Course
ADEX DSE OSCE
Question 1:
A patient presents with gingivitis. What is the most appropriate instruction you should
give them regarding oral hygiene?
A) Brush twice a week
B) Use mouthwash only
C) Brush twice a day and floss daily
D) Rinse with water after every meal
Answer: C) Brush twice a day and floss daily
Rationale: To manage gingivitis, patients should be instructed to brush twice daily and floss
daily to remove plaque and prevent gum inflammation.
Question 2:
You are conducting an oral cancer screening. Which of the following findings would be
most concerning?
A) A red patch on the gingiva
B) A white patch on the tongue
C) A small ulcer that has not healed in two weeks
D) All of the above
Answer: D) All of the above
Rationale: All the listed findings (erythroplasia, leukoplakia, and non-healing ulcers) are
concerning and could indicate the presence of oral cancer or precancerous conditions.
Question 3:
During a scaling procedure, you notice a significant amount of subgingival calculus.
What is your next best step?
A) Complete the scaling procedure
B) Refer the patient to a periodontist
C) Use an ultrasonic scaler
D) Schedule a follow-up appointment
,Answer: C) Use an ultrasonic scaler
Rationale: An ultrasonic scaler can effectively remove significant subgingival calculus due
to its efficiency and ability to access deeper pockets.
Question 4:
What is the primary purpose of using a disclosing agent during a patient assessment?
A) To make the teeth whiter
B) To highlight areas of plaque accumulation
C) To freshen the breath
D) To assess periodontal health
Answer: B) To highlight areas of plaque accumulation
Rationale: A disclosing agent temporarily stains plaque, helping the dental hygienist identify
areas needing better oral hygiene care.
Question 5:
A patient expresses concern about the sensitivity of their teeth after whitening
treatments. What advice should you provide?
A) Stop all whitening treatments
B) Use a desensitizing toothpaste
C) Increase the frequency of whitening
D) Apply fluoride varnish immediately
Answer: B) Use a desensitizing toothpaste
Rationale: Desensitizing toothpaste can help alleviate sensitivity following whitening
treatments by blocking the transmission of stimuli to the nerves.
Question 6:
Which of the following is the most effective method for a patient to clean between teeth?
A) Flossing
B) Interdental brushes
C) Water flosser
D) Toothpicks
Answer: B) Interdental brushes
Rationale: Interdental brushes are effective for cleaning between teeth, especially in larger
spaces or areas with more significant periodontal disease.
,Question 7:
A patient with diabetes presents with periodontal disease. What specific education
should you provide?
A) They should reduce their sugar intake
B) They need to visit the dentist less frequently
C) They should avoid all carbohydrates
D) Their diabetes management will not affect oral health
Answer: A) They should reduce their sugar intake
Rationale: Patients with diabetes should manage their sugar intake to maintain better overall
health, which can help control periodontal disease.
Question 8:
You are performing a periodontal assessment on a patient. What is the normal range
for probing depth in healthy gingival tissue?
A) 1-2 mm
B) 2-3 mm
C) 3-4 mm
D) 4-5 mm
Answer: B) 2-3 mm
Rationale: Healthy gingival tissue typically has probing depths of 1-3 mm, with 2-3 mm
considered normal for periodontal assessments.
Question 9:
What is the recommended fluoride application method for a patient with a high caries
risk?
A) Daily fluoride toothpaste
B) Professionally applied gel or foam every six months
C) Rinsing with fluoride mouthwash weekly
D) Fluoride varnish every three months
Answer: D) Fluoride varnish every three months
Rationale: For high caries risk patients, frequent fluoride varnish applications can
significantly reduce the incidence of caries.
, Question 10:
A patient complains of persistent bad breath (halitosis). Which of the following should
be your first recommendation?
A) Avoid eating garlic and onions
B) Increase fluid intake
C) Schedule a dental cleaning
D) Use mouthwash frequently
Answer: B) Increase fluid intake
Rationale: Increased fluid intake can help combat dry mouth, which is a common cause of
halitosis, and promote saliva production that naturally cleanses the mouth.
Question 11:
During a patient’s medical history review, which condition is most likely to complicate
dental treatment?
A) Hypertension
B) Asthma
C) Diabetes
D) Hyperlipidemia
Answer: C) Diabetes
Rationale: Diabetes can complicate dental treatment due to its association with periodontal
disease, delayed healing, and potential for infections, necessitating careful management.
Question 12:
What is the primary purpose of a periodontal probe in a clinical examination?
A) To measure the width of attached gingiva
B) To assess probing depth and attachment levels
C) To evaluate the condition of enamel
D) To identify areas of recession
Answer: B) To assess probing depth and attachment levels
Rationale: A periodontal probe is primarily used to measure probing depths, assess
periodontal status, and determine attachment levels around teeth.
Question 13:
A patient presents with a history of recurrent canker sores. What dietary advice should
you provide?
