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HESI Dental Hygiene Exam Questions And
Answers 2025 Update.
Under which classification of gingival diseases and conditions is puberty-associated gingivitis
found? - Answer✔Plaque-Induced Gingival diseases modified by systemic factors
A patient presents with a short, thick lingual frenum that results in limited tongue movement
affecting speech. Which is the most likely diagnosis of this condition? - Answer✔Ankyloglossia
When is tooth eruption complete? - Answer✔Tooth has made contact with its antagonists in
opposing jaw
When does mixed dentition begin? - Answer✔Eruption of first permanent tooth
How many succedaneous teeth are in permanent dentition? - Answer✔20
The junction of a buccal and lingual triangular ridge is a transverse ridge. The oblique ridge of a
maxillary molar is an example of a transverse ridge. - Answer✔The first statement is true and
the second is false
Which factor makes aging enamel less susceptible to caries? - Answer✔reduced permeability
Which groove is the most identifying characteristic of a three-cusp mandibular second
premolar? - Answer✔Distolingual
Which is true regarding the height of contour? - Answer✔Greatest elevation of tooth either
incisocervically or occlusocervically
How many primary and permanent teeth are typically present in an eight yr old child? -
Answer✔14 primary; 10 permanent
Which describes the junction of two surfaces of a crown? - Answer✔line angle
Which G.V. Black classification involves the proximal surfaces of anterior teeth including the
incised edge or angle? - Answer✔IV
Which ridge is a unique characteristic of permanent maxillary molars? - Answer✔Oblique
1
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Which division of the fifth cranial nerve innervates the temporomandibular joint? -
Answer✔Mandibular
Facial paralysis can result from damage to the motor neurons of which cranial nerve? -
Answer✔VII
Which is the target area for the inferior alveolar nerve block? - Answer✔mandibular foramen
on medial surface of mandible
Which salivary gland is encapsulated? - Answer✔Sublingual
Which type of joint is the temporomandibular? - Answer✔Synovial
Which peripheral nervous system and subdivision are responsible for a shutdown of salivary
gland secretion? - Answer✔autonomic; sympathetic
Destroyed enamel cannot reform since the cells that formed it no longer exist. Cavitated
enamel can repair itself by the incorporation of calcium and phosphate ions from saliva? -
Answer✔First statement is true second statement is false
Which bacterium is most important in causing the progression of carious lesions? -
Answer✔Aciduric
Anaerobe bacteria - Answer✔grow only in the absence of oxygen
Which bacterial structure interferes with phagocytosis? - Answer✔capsule
Which bacteria grow best in refrigerated conditions? - Answer✔Psychrophils
Endotoxin is a virulence property of - Answer✔gram-negative bacteria
When comparing viruses to bacteria, viruses - Answer✔enter host cells before they can multiply
Which is treated with nystatin? - Answer✔Candidiasis
Which is detected in the blood within two months after successful immunization with the
hepatitis B vaccine? - Answer✔Anti-HBs
Which hypersensitivity reaction is an allergy to the natural rubber latex in examination gloves? -
Answer✔I
Which bacterial genus contains species that cause pneumatic fever, scarlet fever, and
pharyngitis? - Answer✔Streptococcus
Each of the following is an antituberculin agent EXCEPT one. Which is the EXCEPTION?
A. Ethambutol
2
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B. Isoniazid
C. Nizoral
D. Rifampin - Answer✔C. Nizoral
Which condition warrants antibiotic premedication? - Answer✔Repaired congenital heart
disease
It is noted the medical history the patient has mitral valve prolapse, a stent, pneumatic heart
disease, and a renal dialysis shunt. For which condition does the patient require antibiotic
predication? - Answer✔Renal dialysis shunt
A patient's prescription has the abbreviation "qid" meaning? - Answer✔take medication four
times a day
Which schedule of controlled substance is indicated when a prescription states "NO REFILLS" -
Answer✔schedule II controlled substance
Which vitamin deficiency results from long-term recreational abuse of nitrous oxide? -
Answer✔Cobalamin (vitamin B-12)
Each of the following is a calcium blocking agent EXCEPT one. Which one is the EXCEPTION? -
Answer✔Propranolol (adrenergic blocking agent which reduces high blood pressure)
Which food is a good source of vitamin K? - Answer✔Kale!
;milk is an excellent source of calcium; strawberries & sweet potatoes are rich in vitamin c
Which medication is administered to manage an acute asthma attack? - Answer✔Albuterol
short acting bronchodilator results in an immediate response to an acute asthma attack
Lipitor is a/an - Answer✔statin
(lowers cholesterol levels)
Consuming foods high in retinol will help prevent night blindness because vitamin D helps
absorb calcium. - Answer✔Both the statement and reason are correct but not related.
Consuming foods high in retinol will help prevent night blindness. Vitamin D DOES help absorb
calcium.
Which meal lacks an excellent source of vitamin C? - Answer✔Steak, brown rice, and corn
3
HESI Dental Hygiene Exam Questions And
Answers 2025 Update.
Under which classification of gingival diseases and conditions is puberty-associated gingivitis
found? - Answer✔Plaque-Induced Gingival diseases modified by systemic factors
A patient presents with a short, thick lingual frenum that results in limited tongue movement
affecting speech. Which is the most likely diagnosis of this condition? - Answer✔Ankyloglossia
When is tooth eruption complete? - Answer✔Tooth has made contact with its antagonists in
opposing jaw
When does mixed dentition begin? - Answer✔Eruption of first permanent tooth
How many succedaneous teeth are in permanent dentition? - Answer✔20
The junction of a buccal and lingual triangular ridge is a transverse ridge. The oblique ridge of a
maxillary molar is an example of a transverse ridge. - Answer✔The first statement is true and
the second is false
Which factor makes aging enamel less susceptible to caries? - Answer✔reduced permeability
Which groove is the most identifying characteristic of a three-cusp mandibular second
premolar? - Answer✔Distolingual
Which is true regarding the height of contour? - Answer✔Greatest elevation of tooth either
incisocervically or occlusocervically
How many primary and permanent teeth are typically present in an eight yr old child? -
Answer✔14 primary; 10 permanent
Which describes the junction of two surfaces of a crown? - Answer✔line angle
Which G.V. Black classification involves the proximal surfaces of anterior teeth including the
incised edge or angle? - Answer✔IV
Which ridge is a unique characteristic of permanent maxillary molars? - Answer✔Oblique
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:10PM.
Which division of the fifth cranial nerve innervates the temporomandibular joint? -
Answer✔Mandibular
Facial paralysis can result from damage to the motor neurons of which cranial nerve? -
Answer✔VII
Which is the target area for the inferior alveolar nerve block? - Answer✔mandibular foramen
on medial surface of mandible
Which salivary gland is encapsulated? - Answer✔Sublingual
Which type of joint is the temporomandibular? - Answer✔Synovial
Which peripheral nervous system and subdivision are responsible for a shutdown of salivary
gland secretion? - Answer✔autonomic; sympathetic
Destroyed enamel cannot reform since the cells that formed it no longer exist. Cavitated
enamel can repair itself by the incorporation of calcium and phosphate ions from saliva? -
Answer✔First statement is true second statement is false
Which bacterium is most important in causing the progression of carious lesions? -
Answer✔Aciduric
Anaerobe bacteria - Answer✔grow only in the absence of oxygen
Which bacterial structure interferes with phagocytosis? - Answer✔capsule
Which bacteria grow best in refrigerated conditions? - Answer✔Psychrophils
Endotoxin is a virulence property of - Answer✔gram-negative bacteria
When comparing viruses to bacteria, viruses - Answer✔enter host cells before they can multiply
Which is treated with nystatin? - Answer✔Candidiasis
Which is detected in the blood within two months after successful immunization with the
hepatitis B vaccine? - Answer✔Anti-HBs
Which hypersensitivity reaction is an allergy to the natural rubber latex in examination gloves? -
Answer✔I
Which bacterial genus contains species that cause pneumatic fever, scarlet fever, and
pharyngitis? - Answer✔Streptococcus
Each of the following is an antituberculin agent EXCEPT one. Which is the EXCEPTION?
A. Ethambutol
2
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 8:10PM.
B. Isoniazid
C. Nizoral
D. Rifampin - Answer✔C. Nizoral
Which condition warrants antibiotic premedication? - Answer✔Repaired congenital heart
disease
It is noted the medical history the patient has mitral valve prolapse, a stent, pneumatic heart
disease, and a renal dialysis shunt. For which condition does the patient require antibiotic
predication? - Answer✔Renal dialysis shunt
A patient's prescription has the abbreviation "qid" meaning? - Answer✔take medication four
times a day
Which schedule of controlled substance is indicated when a prescription states "NO REFILLS" -
Answer✔schedule II controlled substance
Which vitamin deficiency results from long-term recreational abuse of nitrous oxide? -
Answer✔Cobalamin (vitamin B-12)
Each of the following is a calcium blocking agent EXCEPT one. Which one is the EXCEPTION? -
Answer✔Propranolol (adrenergic blocking agent which reduces high blood pressure)
Which food is a good source of vitamin K? - Answer✔Kale!
;milk is an excellent source of calcium; strawberries & sweet potatoes are rich in vitamin c
Which medication is administered to manage an acute asthma attack? - Answer✔Albuterol
short acting bronchodilator results in an immediate response to an acute asthma attack
Lipitor is a/an - Answer✔statin
(lowers cholesterol levels)
Consuming foods high in retinol will help prevent night blindness because vitamin D helps
absorb calcium. - Answer✔Both the statement and reason are correct but not related.
Consuming foods high in retinol will help prevent night blindness. Vitamin D DOES help absorb
calcium.
Which meal lacks an excellent source of vitamin C? - Answer✔Steak, brown rice, and corn
3
