HESI Dental Hygiene Case-Based Practice Test 1
questions with verified answers
Which bacteria are predominately found close to the pulp in the carious lesion on
tooth #14?
A. Fusobacterium
B. lactobacillus
C. Actinomyces viscosus
D. Streptococcus mutans Ans✓✓ -B. lactobacillus
What clinical characteristic indicated the presence of subgingival calculus?
A. presence of supgragingival calculus
B. blusish-red marginal gingiva
C. presence of diastemas
D. attachment loss Ans✓✓ -B. blusish-red marginal gingiva
Radiographically, what is the radiopaque structure posterior to #31?
A. mandibular canal
B. external oblique ridge
C. retromolar pad
D. internal oblique ridge Ans✓✓ -D. internal oblique ridge
Which explains the distobuccal probing depths on tooth #13?
A. periodontal disease
B. presence of radicular calculus
,C. keratinized tissue associated with tobacco use
D. gingival enlargement Ans✓✓ -B. presence of radicular calculus
The patient is scheduled to have tooth #14 extracted. Which prophylactic oral
antibiotic drug regimen should be prescribed for this procedure?
A. amoxicillin 2000mg one hour prior
B. amoxicillin 2000mg one hour before and after
C. Cephalexin 2 grams one hour before and after
D. cephalexin 2 grams one hour before Ans✓✓ -A. amoxicillin 2000mg one hour
prior
If necessary, which nonopiod analgesic can be recommend for the patient to take
after the extraction?
A. ibuprofen
B. acetaminophen
C. naproxen
D. aspirin Ans✓✓ -B. acetaminophen
The dental hygienist plans to debride the patient's dentition used a
mangetostrictive ultrasonic scaled. Which motion and sides are active with the
scaler tip?
A. linear with all sides
B. linear with lateral sides
C. elliptical with lateral sides
D. elliptical with all sides Ans✓✓ -D. elliptical with all sides
,The palate appears keratotic with interspersed red spots. What does this clinical
appearance most likely represent?
A. recurrent aphthous ulcers
B. nicotine stomatitis
C. materia alba
D. hand, foot and mouth disease Ans✓✓ -B. nicotine stomatitis
The carious lesion on tooth #14 has penetrated each of the following tooth
structures EXCEPT one. Which one is the EXCEPTION?
A. enamel
B. pulp
C. cementum
D. dentin Ans✓✓ -B. pulp
Which agent was tooth #30 most likely treated with before the restoration was
placed?
A. Base
B. linear
C. varnish
D. sealer Ans✓✓ -A. Base
The patient experiences acut pain during periodontal debridement of #12,
necessitating supraperiosteal anesthesia. Which volume of anesthetic solution, in
millimeters, should be administered?
A. 0.2 to 0.4
B. 0.4 to 0.9
, C. 1.2 to 1.5
D. 0.9 to 1.2 Ans✓✓ -B. 0.4 to 0.9
The recession for all three surfaces on the lingual of #13 is 1mm. Which clinical
attachment loss, in millimeters (mm), for the mesiolingual aspect of #13.
A. 4
B. 7
C. 5
D. 6 Ans✓✓ -B. 7
The loss of enamel on tooth #6 is permanent because ameloblasts recede to the
dentinoenamel junction upon eruption.
A. the statement is not correct, but the reason is correct.
B. Both the statement and reason are correct and related.
C. the statement is correct, but the reason is not.
D. Neither the statement nor the reason is correct.
E. Both the statement and the reason are correct, but not related. Ans✓✓ -C. the
statement is correct, but the reason is not.
Which clinical condition is present in all anterior teeth?
A. Abrasion
B. extrusion
C. erosion
D. attrition Ans✓✓ -D. attrition
questions with verified answers
Which bacteria are predominately found close to the pulp in the carious lesion on
tooth #14?
A. Fusobacterium
B. lactobacillus
C. Actinomyces viscosus
D. Streptococcus mutans Ans✓✓ -B. lactobacillus
What clinical characteristic indicated the presence of subgingival calculus?
A. presence of supgragingival calculus
B. blusish-red marginal gingiva
C. presence of diastemas
D. attachment loss Ans✓✓ -B. blusish-red marginal gingiva
Radiographically, what is the radiopaque structure posterior to #31?
A. mandibular canal
B. external oblique ridge
C. retromolar pad
D. internal oblique ridge Ans✓✓ -D. internal oblique ridge
Which explains the distobuccal probing depths on tooth #13?
A. periodontal disease
B. presence of radicular calculus
,C. keratinized tissue associated with tobacco use
D. gingival enlargement Ans✓✓ -B. presence of radicular calculus
The patient is scheduled to have tooth #14 extracted. Which prophylactic oral
antibiotic drug regimen should be prescribed for this procedure?
A. amoxicillin 2000mg one hour prior
B. amoxicillin 2000mg one hour before and after
C. Cephalexin 2 grams one hour before and after
D. cephalexin 2 grams one hour before Ans✓✓ -A. amoxicillin 2000mg one hour
prior
If necessary, which nonopiod analgesic can be recommend for the patient to take
after the extraction?
A. ibuprofen
B. acetaminophen
C. naproxen
D. aspirin Ans✓✓ -B. acetaminophen
The dental hygienist plans to debride the patient's dentition used a
mangetostrictive ultrasonic scaled. Which motion and sides are active with the
scaler tip?
A. linear with all sides
B. linear with lateral sides
C. elliptical with lateral sides
D. elliptical with all sides Ans✓✓ -D. elliptical with all sides
,The palate appears keratotic with interspersed red spots. What does this clinical
appearance most likely represent?
A. recurrent aphthous ulcers
B. nicotine stomatitis
C. materia alba
D. hand, foot and mouth disease Ans✓✓ -B. nicotine stomatitis
The carious lesion on tooth #14 has penetrated each of the following tooth
structures EXCEPT one. Which one is the EXCEPTION?
A. enamel
B. pulp
C. cementum
D. dentin Ans✓✓ -B. pulp
Which agent was tooth #30 most likely treated with before the restoration was
placed?
A. Base
B. linear
C. varnish
D. sealer Ans✓✓ -A. Base
The patient experiences acut pain during periodontal debridement of #12,
necessitating supraperiosteal anesthesia. Which volume of anesthetic solution, in
millimeters, should be administered?
A. 0.2 to 0.4
B. 0.4 to 0.9
, C. 1.2 to 1.5
D. 0.9 to 1.2 Ans✓✓ -B. 0.4 to 0.9
The recession for all three surfaces on the lingual of #13 is 1mm. Which clinical
attachment loss, in millimeters (mm), for the mesiolingual aspect of #13.
A. 4
B. 7
C. 5
D. 6 Ans✓✓ -B. 7
The loss of enamel on tooth #6 is permanent because ameloblasts recede to the
dentinoenamel junction upon eruption.
A. the statement is not correct, but the reason is correct.
B. Both the statement and reason are correct and related.
C. the statement is correct, but the reason is not.
D. Neither the statement nor the reason is correct.
E. Both the statement and the reason are correct, but not related. Ans✓✓ -C. the
statement is correct, but the reason is not.
Which clinical condition is present in all anterior teeth?
A. Abrasion
B. extrusion
C. erosion
D. attrition Ans✓✓ -D. attrition
