HESI Dental Hygiene Exam questions and answers
2026 update
1. Under which classification of gingival diseases and conditions is
h, h, h, h, h, h, h, h,
h, puber- ty-associated gingivitis found?:ANS>> Plaque-Induced Gingival
h, h, h, h, h, h,
h, diseases
modified bysystemic factors
h, h,
2. A patient presents with a short, thick lingual frenum that results in
h, h, h, h, h, h, h, h, h, h, h,
h, limited tongue movement affecting speech. Which is the most likely
h, h, h, h, h, h, h, h, h,
diagnosis of this condition?: ANS>> Ankyloglossia
h, h, h, h, h, h,
3. When is tooth eruption complete?: ANS>> Tooth has made contact with its
h, h, h, h, h, h, h, h, h, h, h,
antagonistsin opposing jaw h, h,
4. When does mixed dentition begin?: ANS>> Eruption of first permanent tooth
h, h, h, h, h, h, h, h, h, h,
5. How many succedaneous teeth are in permanent dentition?: ANS>> 20
h, h, h, h, h, h, h, h, h,
6. The junction of a buccal and lingual triangular ridge is a transverse ridge.
h, h, h, h, h, h, h, h, h, h, h, h,
The oblique ridge of a maxillary molar is an example of a transverse ridge.:
h, h, h, h, h, h, h, h, h, h, h, h, h,
,1 h,/ h,15
,ANS>> h, h , The first statement is true and the second is false
h, h, h, h, h, h, h, h, h,
7. Which factor makes aging enamel less susceptible to caries?: reduced
h, h, h, h, h, h, h, h, h,
h, per- meability
h,
8. Which groove is the most identifying characteristic of a three-
h, h, h, h, h, h, h, h, h,
cusp mandibular second premolar?: Distolingual
h, h, h, h,
9. Which is true regarding the height of contour?: Greatest elevation of
h, h, h, h, h, h, h, h, h, h,
tooth either incisocervically or occlusocervically
h, h, h, h, h,
10. How many primary and permanent teeth are typically present in an
h, h, h, h, h, h, h, h, h, h,
h, eight yr old child?: 14 primary; 10 permanent
h, h, h, h, h, h, h,
11. Which describes the junction of two surfaces of a crown?: line angle
h, h, h, h, h, h, h, h, h, h, h,
12. Which G.V. Black classification involves the proximal surfaces of anterior
h, h, h, h, h, h, h, h, h,
h, teeth including the incised edge or angle?: IV
h, h, h, h, h, h, h,
13. Which ridge is a unique characteristic of permanent maxillary molars?: -
h, h, h, h, h, h, h, h, h, h,
Oblique
14. Which division of the fifth cranial nerve innervates the temporomandibular
h, h, h, h, h, h, h, h, h,
h, joint?: Mandibular h,
15. Facial paralysis can result from damage to the motor neurons of
h, h, h, h, h, h, h, h, h, h,
which cranial nerve?: VII
h, h, h, h,
16. Which is the target area for the inferior alveolar nerve block?: mandibular
h, h, h, h, h, h, h, h, h, h, h,
2 h,/ h,15
, foramen on medial surface of mandible
h, h, h, h, h,
17. Which salivary gland is encapsulated?: Sublingual
h, h, h, h, h,
18. Which type of joint is the temporomandibular?: Synovial
h, h, h, h, h, h, h,
19. Which peripheral nervous system and subdivision are responsible for
h, h, h, h, h, h, h, h,
h, a shutdown of salivary gland secretion?: autonomic; sympathetic
h, h, h, h, h, h, h,
20. Destroyed enamel cannot reform since the cells that formed it no
h, h, h, h, h, h, h, h, h, h,
h, longer exist. Cavitated enamel can repair itself by the incorporation of
h, h, h, h, h, h, h, h, h, h,
h, calcium and phosphate ions from saliva?: First statement is true second
h, h, h, h, h, h, h, h, h, h,
h, statement is falseh, h,
2026 update
1. Under which classification of gingival diseases and conditions is
h, h, h, h, h, h, h, h,
h, puber- ty-associated gingivitis found?:ANS>> Plaque-Induced Gingival
h, h, h, h, h, h,
h, diseases
modified bysystemic factors
h, h,
2. A patient presents with a short, thick lingual frenum that results in
h, h, h, h, h, h, h, h, h, h, h,
h, limited tongue movement affecting speech. Which is the most likely
h, h, h, h, h, h, h, h, h,
diagnosis of this condition?: ANS>> Ankyloglossia
h, h, h, h, h, h,
3. When is tooth eruption complete?: ANS>> Tooth has made contact with its
h, h, h, h, h, h, h, h, h, h, h,
antagonistsin opposing jaw h, h,
4. When does mixed dentition begin?: ANS>> Eruption of first permanent tooth
h, h, h, h, h, h, h, h, h, h,
5. How many succedaneous teeth are in permanent dentition?: ANS>> 20
h, h, h, h, h, h, h, h, h,
6. The junction of a buccal and lingual triangular ridge is a transverse ridge.
h, h, h, h, h, h, h, h, h, h, h, h,
The oblique ridge of a maxillary molar is an example of a transverse ridge.:
h, h, h, h, h, h, h, h, h, h, h, h, h,
,1 h,/ h,15
,ANS>> h, h , The first statement is true and the second is false
h, h, h, h, h, h, h, h, h,
7. Which factor makes aging enamel less susceptible to caries?: reduced
h, h, h, h, h, h, h, h, h,
h, per- meability
h,
8. Which groove is the most identifying characteristic of a three-
h, h, h, h, h, h, h, h, h,
cusp mandibular second premolar?: Distolingual
h, h, h, h,
9. Which is true regarding the height of contour?: Greatest elevation of
h, h, h, h, h, h, h, h, h, h,
tooth either incisocervically or occlusocervically
h, h, h, h, h,
10. How many primary and permanent teeth are typically present in an
h, h, h, h, h, h, h, h, h, h,
h, eight yr old child?: 14 primary; 10 permanent
h, h, h, h, h, h, h,
11. Which describes the junction of two surfaces of a crown?: line angle
h, h, h, h, h, h, h, h, h, h, h,
12. Which G.V. Black classification involves the proximal surfaces of anterior
h, h, h, h, h, h, h, h, h,
h, teeth including the incised edge or angle?: IV
h, h, h, h, h, h, h,
13. Which ridge is a unique characteristic of permanent maxillary molars?: -
h, h, h, h, h, h, h, h, h, h,
Oblique
14. Which division of the fifth cranial nerve innervates the temporomandibular
h, h, h, h, h, h, h, h, h,
h, joint?: Mandibular h,
15. Facial paralysis can result from damage to the motor neurons of
h, h, h, h, h, h, h, h, h, h,
which cranial nerve?: VII
h, h, h, h,
16. Which is the target area for the inferior alveolar nerve block?: mandibular
h, h, h, h, h, h, h, h, h, h, h,
2 h,/ h,15
, foramen on medial surface of mandible
h, h, h, h, h,
17. Which salivary gland is encapsulated?: Sublingual
h, h, h, h, h,
18. Which type of joint is the temporomandibular?: Synovial
h, h, h, h, h, h, h,
19. Which peripheral nervous system and subdivision are responsible for
h, h, h, h, h, h, h, h,
h, a shutdown of salivary gland secretion?: autonomic; sympathetic
h, h, h, h, h, h, h,
20. Destroyed enamel cannot reform since the cells that formed it no
h, h, h, h, h, h, h, h, h, h,
h, longer exist. Cavitated enamel can repair itself by the incorporation of
h, h, h, h, h, h, h, h, h, h,
h, calcium and phosphate ions from saliva?: First statement is true second
h, h, h, h, h, h, h, h, h, h,
h, statement is falseh, h,