1|Page
HESI DENTAL HYGIENE EXAM (EVERYTHING ON HESI DENTAL
HYGIENE IN ONE DOCUMENT) NEWEST 2026/2027 ACTUAL
EXAM COMPLETE 600 QUESTIONS AND CORRECT
ANSWERS|ALREADY GRADED A+||JUST OUT!!!
What color will a tooth be with internal resorption? - ANSWER-
pink
What tooth anomaly is resorption of the tooth externally?
What is the etiology?
A. internal resorption
B. external resorption
C. dens in dente - ANSWER-external resorption; unknown
etiology but could be ortho movement (blunted roots)
What tooth anomaly are two teeth joined at the cementum?
Which teeth are most affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-concrescence; 2nd and 3rd molars
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What tooth anomaly are there twinning crowns with one root
and one pulp chamber? Are the amount of teeth affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-gemination; no, so same normal
count of teeth
What tooth anomaly are there two teeth joined together
during development resulting in one large tooth. Are the
amount of teeth affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-fusion; yes, teeth count is one tooth
less than normal
What tooth anomaly means a tooth within a tooth? What tooth
is most commonly affected? What is another name for this
term?
A. fusion
B. gemination
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C. dens in dente
D. concrescence - ANSWER-dens in dente; max lateral incisors
the lingual pit side; dens invaginatus
How does dens in dente occur? - ANSWER-invagination of the
crown that is lined with enamel
What tooth anomaly is there an exaggerated curve or bend of
the root or crown?
A. fusion
B. dilaceration
C. taurodontism
D. concrescence - ANSWER-dilaceration
T/F: It is difficult to extract or perform a root canal on
dilacerated teeth. - ANSWER-True
What tooth anomaly is there a disturbance of enamel
formation during development where the enamel becomes
displaced. T/F: Usually present in bifurcated or trifurcated
areas.
A. enamel pearl
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B. gemination
C. dens in dente
D. concrescence - ANSWER-enamel pearl
T/F: Tooth hypoplasia can occur from early childhood diseases
and fluorosis.
All are systemic causes of hypoplasia except:
A. trauma
B. syphilis acquired at birth mulberry molars and Hutchinson's
incisors
C. HIV - ANSWER-True; HIV
What term describes a hypocalcified permanent tooth? -
ANSWER-Turner's tooth
What tooth anomaly forms a notched out appearance in the
incisors due to being exposed with syphilis at birth? - ANSWER-
Hutchinson's incisors
What tooth anomaly forms many small bumps one the molars
resembling a mulberry shape due to syphilis at birth? -
ANSWER-mulberry molars
HESI DENTAL HYGIENE EXAM (EVERYTHING ON HESI DENTAL
HYGIENE IN ONE DOCUMENT) NEWEST 2026/2027 ACTUAL
EXAM COMPLETE 600 QUESTIONS AND CORRECT
ANSWERS|ALREADY GRADED A+||JUST OUT!!!
What color will a tooth be with internal resorption? - ANSWER-
pink
What tooth anomaly is resorption of the tooth externally?
What is the etiology?
A. internal resorption
B. external resorption
C. dens in dente - ANSWER-external resorption; unknown
etiology but could be ortho movement (blunted roots)
What tooth anomaly are two teeth joined at the cementum?
Which teeth are most affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-concrescence; 2nd and 3rd molars
,2|Page
What tooth anomaly are there twinning crowns with one root
and one pulp chamber? Are the amount of teeth affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-gemination; no, so same normal
count of teeth
What tooth anomaly are there two teeth joined together
during development resulting in one large tooth. Are the
amount of teeth affected?
A. fusion
B. gemination
C. dens in dente
D. concrescence - ANSWER-fusion; yes, teeth count is one tooth
less than normal
What tooth anomaly means a tooth within a tooth? What tooth
is most commonly affected? What is another name for this
term?
A. fusion
B. gemination
,3|Page
C. dens in dente
D. concrescence - ANSWER-dens in dente; max lateral incisors
the lingual pit side; dens invaginatus
How does dens in dente occur? - ANSWER-invagination of the
crown that is lined with enamel
What tooth anomaly is there an exaggerated curve or bend of
the root or crown?
A. fusion
B. dilaceration
C. taurodontism
D. concrescence - ANSWER-dilaceration
T/F: It is difficult to extract or perform a root canal on
dilacerated teeth. - ANSWER-True
What tooth anomaly is there a disturbance of enamel
formation during development where the enamel becomes
displaced. T/F: Usually present in bifurcated or trifurcated
areas.
A. enamel pearl
, 4|Page
B. gemination
C. dens in dente
D. concrescence - ANSWER-enamel pearl
T/F: Tooth hypoplasia can occur from early childhood diseases
and fluorosis.
All are systemic causes of hypoplasia except:
A. trauma
B. syphilis acquired at birth mulberry molars and Hutchinson's
incisors
C. HIV - ANSWER-True; HIV
What term describes a hypocalcified permanent tooth? -
ANSWER-Turner's tooth
What tooth anomaly forms a notched out appearance in the
incisors due to being exposed with syphilis at birth? - ANSWER-
Hutchinson's incisors
What tooth anomaly forms many small bumps one the molars
resembling a mulberry shape due to syphilis at birth? -
ANSWER-mulberry molars
