HESI DENTAL HYGIENE EXAM 2 2026
ADVANCED PRACTICE TEST 400+
QUESTIONS WITH COMPLETE SOLUTIONS
AND EXPERT ANALYSIS
⩥ 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
⩥ 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?
ADVANCED PRACTICE TEST 400+
QUESTIONS WITH COMPLETE SOLUTIONS
AND EXPERT ANALYSIS
⩥ 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
⩥ 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?
