HESI DENTAL HYGIENE EXAM AND PRACTICE EXAM
NEWEST 2026 ACTUAL EXAM 100 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which results will ensue if a kilovolt peak (kVp) below 65 is used when exposing radiographs? A.
Exposure to radiation is increased.
B. Overall darker film density results.
C. Diagnostic digital image does not result.
D. Focal-film distance must be increased. - CORRECT ANSWER-A. Exposure to radiation is increased.
Each of the following compounds is used to fluoridate domestic water systems EXCEPT one. Which one
is the EXCEPTION?
A. Hydrofluorosilicic acid
B. Sodium silicofluoride.
C. Sodium fluoride.
D. Acidulated phosphate. - CORRECT ANSWER-D. Acidulated phosphate.
Most dental sealants placed are self cured because this process allows for a longer working time for the
operator.
A. The statement is correct, but the reason is NOT.
B. Both statement and reason are correct and related.
C. The statement is NOT correct, but the reason is correct.
D. Both statement and reason are correct, but not related.
E. NEITHER the statement NOR the reason is correct. - CORRECT ANSWER-E. NEITHER the statement
NOR the reason is correct.
Each of the following patients would benefit from prescription fluoride supplements EXCEPT one. Which
one is the EXCEPTION?
A. 16-year-old male living in a community where the fluoride level in the water supply is 0.5 ppm.
,B. 33-year-old female in her second trimester of pregnancy who drinks unfluoridated water.
C. 7-month-old female who receives her total dietary intake from breast milk
D. 5-year-old male living in a community where the fluoride level in the water supply is 0.2 ppm. -
CORRECT ANSWER-B. 33-year-old female in her second trimester of pregnancy who drinks
unfluoridated
water.
In addition to bleeding, which other characteristic best describes a mild case of gingivitis?
A. Areas of pseudopocking B.
Pocket depths measuring 6mm.
C. Mobility.
D. Presence of fibrotic gingival tissues and cementum exposure. - CORRECT ANSWER-A. Areas of
pseudopocking
Each of the following is true concerning professionally applied topical fluoride in a tray EXCEPT one.
Which one is the EXCEPTION?
A. Apply fluoride for 4 minutes.
B. Ask patient to rinse thoroughly following the application to prevent ingestion.
C. Use saliva ejector to help hold trays in place.
D. Dispense 2 ml of fluoride in tray. - CORRECT ANSWER-B. Ask patient to rinse thoroughly following the
application to prevent ingestion.
Which most effectively identifies plaque biofilm on tooth surfaces? A.
Study cast.
B. Reading materials.
C. Discussion with clinician.
D. Disclosing agent. - CORRECT ANSWER-D. Disclosing agent.
Mobility is a risk factor for periodontal disease progression. Mobility is measured using bidigital
evaluation when teeth are not occluded. A. Both statements are false.
, B. The first statement is false and the second is true.
C. The first statement is true and the second is false.
D. Both statements are true. - CORRECT ANSWER-D. Both statements are true.
After taking a periapical of tooth #24 using the paralleling technique, the dental hygienist notices the
image appears elongated. How would the dental hygienist correct this error? A. Decrease negative
vertical angulation.
B. Increase negative vertical angulation. C.
Decrease positive vertical angulation.
D. Increase positive vertical angulation. - CORRECT ANSWER-B. Increase negative vertical angulation.
A patient in her seventh month of pregnancy begins to feel nauseous during the dental prophylaxis.
Suddenly, the patient begins to sweat and starts gasping for air. What is the patient experiencing? A.
Postprandial hypotension.
B. Orthostatic hypotension.
C. Neurally mediated hypotension.
D. Supine hypotensive syndrome. - CORRECT ANSWER-D. Supine hypotensive syndrome.
Which vaccination does the Occupational Safety and Health Administration (OSHA) requires employers
to offer all personnel at risk of exposure to blood and other potentially infectious materials? A.
Rubella.
B. Hepatitis B.
C. Influenza.
D. Varicella-zoster. - CORRECT ANSWER-B. Hepatitis B.
Which person may give consent when presenting a treatment plan for an incompetent adult? A.
Patient's caregiver.
B. Dental clinician.
C. Patient's sibling.
NEWEST 2026 ACTUAL EXAM 100 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which results will ensue if a kilovolt peak (kVp) below 65 is used when exposing radiographs? A.
Exposure to radiation is increased.
B. Overall darker film density results.
C. Diagnostic digital image does not result.
D. Focal-film distance must be increased. - CORRECT ANSWER-A. Exposure to radiation is increased.
Each of the following compounds is used to fluoridate domestic water systems EXCEPT one. Which one
is the EXCEPTION?
A. Hydrofluorosilicic acid
B. Sodium silicofluoride.
C. Sodium fluoride.
D. Acidulated phosphate. - CORRECT ANSWER-D. Acidulated phosphate.
Most dental sealants placed are self cured because this process allows for a longer working time for the
operator.
A. The statement is correct, but the reason is NOT.
B. Both statement and reason are correct and related.
C. The statement is NOT correct, but the reason is correct.
D. Both statement and reason are correct, but not related.
E. NEITHER the statement NOR the reason is correct. - CORRECT ANSWER-E. NEITHER the statement
NOR the reason is correct.
Each of the following patients would benefit from prescription fluoride supplements EXCEPT one. Which
one is the EXCEPTION?
A. 16-year-old male living in a community where the fluoride level in the water supply is 0.5 ppm.
,B. 33-year-old female in her second trimester of pregnancy who drinks unfluoridated water.
C. 7-month-old female who receives her total dietary intake from breast milk
D. 5-year-old male living in a community where the fluoride level in the water supply is 0.2 ppm. -
CORRECT ANSWER-B. 33-year-old female in her second trimester of pregnancy who drinks
unfluoridated
water.
In addition to bleeding, which other characteristic best describes a mild case of gingivitis?
A. Areas of pseudopocking B.
Pocket depths measuring 6mm.
C. Mobility.
D. Presence of fibrotic gingival tissues and cementum exposure. - CORRECT ANSWER-A. Areas of
pseudopocking
Each of the following is true concerning professionally applied topical fluoride in a tray EXCEPT one.
Which one is the EXCEPTION?
A. Apply fluoride for 4 minutes.
B. Ask patient to rinse thoroughly following the application to prevent ingestion.
C. Use saliva ejector to help hold trays in place.
D. Dispense 2 ml of fluoride in tray. - CORRECT ANSWER-B. Ask patient to rinse thoroughly following the
application to prevent ingestion.
Which most effectively identifies plaque biofilm on tooth surfaces? A.
Study cast.
B. Reading materials.
C. Discussion with clinician.
D. Disclosing agent. - CORRECT ANSWER-D. Disclosing agent.
Mobility is a risk factor for periodontal disease progression. Mobility is measured using bidigital
evaluation when teeth are not occluded. A. Both statements are false.
, B. The first statement is false and the second is true.
C. The first statement is true and the second is false.
D. Both statements are true. - CORRECT ANSWER-D. Both statements are true.
After taking a periapical of tooth #24 using the paralleling technique, the dental hygienist notices the
image appears elongated. How would the dental hygienist correct this error? A. Decrease negative
vertical angulation.
B. Increase negative vertical angulation. C.
Decrease positive vertical angulation.
D. Increase positive vertical angulation. - CORRECT ANSWER-B. Increase negative vertical angulation.
A patient in her seventh month of pregnancy begins to feel nauseous during the dental prophylaxis.
Suddenly, the patient begins to sweat and starts gasping for air. What is the patient experiencing? A.
Postprandial hypotension.
B. Orthostatic hypotension.
C. Neurally mediated hypotension.
D. Supine hypotensive syndrome. - CORRECT ANSWER-D. Supine hypotensive syndrome.
Which vaccination does the Occupational Safety and Health Administration (OSHA) requires employers
to offer all personnel at risk of exposure to blood and other potentially infectious materials? A.
Rubella.
B. Hepatitis B.
C. Influenza.
D. Varicella-zoster. - CORRECT ANSWER-B. Hepatitis B.
Which person may give consent when presenting a treatment plan for an incompetent adult? A.
Patient's caregiver.
B. Dental clinician.
C. Patient's sibling.
