HESI DENTAL HYGIENE ACTUAL EXAM |400+ COMPLETE QUESTIONS WITH
EXPERT SOLUTIONS | 2026 LATEST UPDATED | GET A+
1. Under which classification of gingival diseases and conditions is puberty-
associated gingivitis found?: Plaque-Induced Gingival diseases modified by
systemic factors
2. 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?: Ankyloglossia
3. When is tooth eruption complete?: Tooth has made contact with its
antagonists in opposing jaw
4. When does mixed dentition begin?: eruption of the first permanent
tooth
5. How many succedaneous teeth are in permanent dentition?: 20
6. 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.:
The first statement is true and the second is false
7. Which factor makes aging enamel less susceptible to caries?: reduced
permeability 8. Which groove is the most identifying characteristic of a
three-cusp mandibular second premolar?: Distolingual
9. Which is true regarding the height of contour?: Greatest elevation of tooth
either incisocervically or occlusocervically
10. How many primary and permanent teeth are typically present in an eight
yr old child?: 14 primary; 10 permanent
11. Which describes the junction of two surfaces of a crown?: line angle
12. Which G.V. Black classification involves the proximal surfaces of anterior
teeth including the incised edge or angle?: IV
13. Which ridge is a unique characteristic of permanent maxillary molars?: -
Oblique
14. Which division of the fifth cranial nerve innervates the
temporomandibular joint?: Mandibular
,15. Facial paralysis can result from damage to the motor neurons of which
cranial nerve?: VII
16. Which is the target area for the inferior alveolar nerve block?:
mandibular foramen
on medial surface of mandible
17. Which salivary gland is encapsulated?: Sublingual
18. Which type of joint is the temporomandibular?: synovial
19 Which peripheral nervous system and subdivision are responsible for a
shutdown of salivary gland secretion?: autonomic; sympathetic
20. 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?: First statement is true second statement is false
21. Which bacterium is most important in causing the progression of carious
lesions?: Aciduric
22. Anaerobe bacteria: grow only in the absence of oxygen
23. Which bacterial structure interferes with phagocytosis?: capsule
, 24. Which bacteria grow best in refrigerated conditions?: Psychrophils
25. Endotoxin is a virulence property of: gram-negative bacteria
26. When comparing viruses to bacteria, viruses: enter host cells before they
can multiply
27. Which is treated with nystatin?: Candidiasis
28. Which is detected in the blood within two months after successful
immunization with the hepatitis B vaccine?: Anti-HBs
29. Which hypersensitivity reaction is an allergy to the natural rubber latex
in examination gloves?: I
30. Which bacterial genus contains species that cause pneumatic fever,
scarlet fever, and pharyngitis?: Streptococcus
31. Each of the following is an antituberculin agent EXCEPT one. Which is the
EXCEPTION?: Nizoral
32. Which condition warrants antibiotic premedication?: Repaired
congenital heart disease
EXPERT SOLUTIONS | 2026 LATEST UPDATED | GET A+
1. Under which classification of gingival diseases and conditions is puberty-
associated gingivitis found?: Plaque-Induced Gingival diseases modified by
systemic factors
2. 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?: Ankyloglossia
3. When is tooth eruption complete?: Tooth has made contact with its
antagonists in opposing jaw
4. When does mixed dentition begin?: eruption of the first permanent
tooth
5. How many succedaneous teeth are in permanent dentition?: 20
6. 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.:
The first statement is true and the second is false
7. Which factor makes aging enamel less susceptible to caries?: reduced
permeability 8. Which groove is the most identifying characteristic of a
three-cusp mandibular second premolar?: Distolingual
9. Which is true regarding the height of contour?: Greatest elevation of tooth
either incisocervically or occlusocervically
10. How many primary and permanent teeth are typically present in an eight
yr old child?: 14 primary; 10 permanent
11. Which describes the junction of two surfaces of a crown?: line angle
12. Which G.V. Black classification involves the proximal surfaces of anterior
teeth including the incised edge or angle?: IV
13. Which ridge is a unique characteristic of permanent maxillary molars?: -
Oblique
14. Which division of the fifth cranial nerve innervates the
temporomandibular joint?: Mandibular
,15. Facial paralysis can result from damage to the motor neurons of which
cranial nerve?: VII
16. Which is the target area for the inferior alveolar nerve block?:
mandibular foramen
on medial surface of mandible
17. Which salivary gland is encapsulated?: Sublingual
18. Which type of joint is the temporomandibular?: synovial
19 Which peripheral nervous system and subdivision are responsible for a
shutdown of salivary gland secretion?: autonomic; sympathetic
20. 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?: First statement is true second statement is false
21. Which bacterium is most important in causing the progression of carious
lesions?: Aciduric
22. Anaerobe bacteria: grow only in the absence of oxygen
23. Which bacterial structure interferes with phagocytosis?: capsule
, 24. Which bacteria grow best in refrigerated conditions?: Psychrophils
25. Endotoxin is a virulence property of: gram-negative bacteria
26. When comparing viruses to bacteria, viruses: enter host cells before they
can multiply
27. Which is treated with nystatin?: Candidiasis
28. Which is detected in the blood within two months after successful
immunization with the hepatitis B vaccine?: Anti-HBs
29. Which hypersensitivity reaction is an allergy to the natural rubber latex
in examination gloves?: I
30. Which bacterial genus contains species that cause pneumatic fever,
scarlet fever, and pharyngitis?: Streptococcus
31. Each of the following is an antituberculin agent EXCEPT one. Which is the
EXCEPTION?: Nizoral
32. Which condition warrants antibiotic premedication?: Repaired
congenital heart disease
