HESI Dental Hygeine Practice Test:
Provisions V1 UPDATED ACTUAL
Questions and CORRECT Answers
Which results will ensue if a kilovolt peak (kVp) below 65 is used when exposing radiographs?
A. Focal-film distance must be increased.
B. Exposure to radiation is increased.
C. Diagnostic digital image does not result.
D. Overall darker film density results. - CORRECT ANSWER -B. Exposure to radiation increased
Each of the following compounds is used to fluoridate domestic water systems EXCEPT one. Which one
is the EXCEPTION?
A. Hydrofluorosilicic acid.
B. Acidulated phosphate.
C. Sodium fluoride.
D. Sodium silicofluoride. - CORRECT ANSWER -B. Acidulated phosphate
Which is an advantage of a light-cured dental sealant?
A. Cure depth is limited.
B. Marginal stress buildup is higher than self-cured resins.
C. A special lamp is needed to initiate the curing.
D. It allows for longer working time for the operator. - CORRECT ANSWER -D. It allows for
longer working time for the operator.
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 -A. 16 year old male living in a community where the fluoride level in the
water supply is 0.5 ppm.
In addition to bleeding, which other characteristic best describes a mild case of gingivitis?
A. Presence of fibrotic gingival tissues and cementum exposure.
B. Areas of pseudopocking.
C. Mobility.
D. Pocket depths measuring 6mm. - CORRECT ANSWER -B. Areas of pseudopocketing
Each of the following is true concerning professionally applied topical fluoride in a tray EXCEPT one.
Which one is the EXCEPTION?
A. Ask patient to rinse thoroughly following the application to prevent ingestion.
B. Use saliva ejector to help hold trays in place.
C. Apply fluoride for 4 minutes.
D. Dispense 2 ml of fluoride in tray. - CORRECT ANSWER -A. Ask patient to rinse thoroughly
following the application to prevent ingestion
Which most effectively identifies plaque biofilm on tooth surfaces?
Discussion with clinician.
Reading materials.
Study cast.
Disclosing agent. - CORRECT ANSWER -
Each of the following is a risk factor for periodontal disease progression EXCEPT one. Which is the
EXCEPTION?
Genetics
Nutrition.
Mobility.
Surgical history. - CORRECT ANSWER -
, 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?
Increase negative vertical angulation.
Decrease negative vertical angulation.
Decrease positive vertical angulation.
Increase positive vertical angulation. - CORRECT ANSWER -
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?
Neurally mediated hypotension.
Orthostatic hypotension.
Postprandial hypotension.
Supine hypotensive syndrome. - CORRECT ANSWER -
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?
Hepatitis B.
Influenza.
Rubella.
Varicella-zoster. - CORRECT ANSWER -
The Hepatitis B virus (HBV) is transmitted through ingestion of foods or water contaminated by an
infected person. The Hepatitis A virus (HAV) virus is transmitted through blood, blood products, or body
fluids.
The first statement is true and the second is false.
Both statements are false.
The first statement is false and the second is true.
Both statements are true. - CORRECT ANSWER -
Provisions V1 UPDATED ACTUAL
Questions and CORRECT Answers
Which results will ensue if a kilovolt peak (kVp) below 65 is used when exposing radiographs?
A. Focal-film distance must be increased.
B. Exposure to radiation is increased.
C. Diagnostic digital image does not result.
D. Overall darker film density results. - CORRECT ANSWER -B. Exposure to radiation increased
Each of the following compounds is used to fluoridate domestic water systems EXCEPT one. Which one
is the EXCEPTION?
A. Hydrofluorosilicic acid.
B. Acidulated phosphate.
C. Sodium fluoride.
D. Sodium silicofluoride. - CORRECT ANSWER -B. Acidulated phosphate
Which is an advantage of a light-cured dental sealant?
A. Cure depth is limited.
B. Marginal stress buildup is higher than self-cured resins.
C. A special lamp is needed to initiate the curing.
D. It allows for longer working time for the operator. - CORRECT ANSWER -D. It allows for
longer working time for the operator.
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 -A. 16 year old male living in a community where the fluoride level in the
water supply is 0.5 ppm.
In addition to bleeding, which other characteristic best describes a mild case of gingivitis?
A. Presence of fibrotic gingival tissues and cementum exposure.
B. Areas of pseudopocking.
C. Mobility.
D. Pocket depths measuring 6mm. - CORRECT ANSWER -B. Areas of pseudopocketing
Each of the following is true concerning professionally applied topical fluoride in a tray EXCEPT one.
Which one is the EXCEPTION?
A. Ask patient to rinse thoroughly following the application to prevent ingestion.
B. Use saliva ejector to help hold trays in place.
C. Apply fluoride for 4 minutes.
D. Dispense 2 ml of fluoride in tray. - CORRECT ANSWER -A. Ask patient to rinse thoroughly
following the application to prevent ingestion
Which most effectively identifies plaque biofilm on tooth surfaces?
Discussion with clinician.
Reading materials.
Study cast.
Disclosing agent. - CORRECT ANSWER -
Each of the following is a risk factor for periodontal disease progression EXCEPT one. Which is the
EXCEPTION?
Genetics
Nutrition.
Mobility.
Surgical history. - CORRECT ANSWER -
, 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?
Increase negative vertical angulation.
Decrease negative vertical angulation.
Decrease positive vertical angulation.
Increase positive vertical angulation. - CORRECT ANSWER -
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?
Neurally mediated hypotension.
Orthostatic hypotension.
Postprandial hypotension.
Supine hypotensive syndrome. - CORRECT ANSWER -
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?
Hepatitis B.
Influenza.
Rubella.
Varicella-zoster. - CORRECT ANSWER -
The Hepatitis B virus (HBV) is transmitted through ingestion of foods or water contaminated by an
infected person. The Hepatitis A virus (HAV) virus is transmitted through blood, blood products, or body
fluids.
The first statement is true and the second is false.
Both statements are false.
The first statement is false and the second is true.
Both statements are true. - CORRECT ANSWER -
