DH SEMINARS: DENTAL HYGIENE
BOARD EXAM 2024-2025
a. Each of the following is a property of a good disinfectant EXCEPT one. - CORRECT-
ANSWERSGood disinfectant properties
b. One of the disadvantages of steam sterilization is that it may not kill spores. -
CORRECT-ANSWERSDisadvantages of steam sterilization
c. Each of the following is an example of regulated biohazard waste EXCEPT one. -
CORRECT-ANSWERSRegulated biohazard waste
d. Which agency monitors the fluoride in bottled water? - CORRECT-ANSWERSAgency
monitoring fluoride in bottled water
e. Referring to Angle's classification for occlusion for the permanent dentition, a Class II,
division II (2) denotes a profile that is retrognathic, with one or more anterior teeth
inclined lingually. - CORRECT-ANSWERSAngle's classification Class II, division II
f. Clinically, the dentist finds evidence of decay on the cervical 1/3 of the facial of tooth
#8. The G.V. Black Classification of this decay is: V. - CORRECT-ANSWERSG.V. Black
Classification of decay
,g. One of the disadvantages of a phenol disinfectant is that it is corrosive to metals. -
CORRECT-ANSWERSDisadvantages of phenol disinfectant
h. Each of the following is a compound used to fluoridate community drinking water
systems EXCEPT one. - CORRECT-ANSWERSCompounds used to fluoridate drinking
water
i. The dental hygienist is planning to use an ultrasonic scaler on his/her patient. Motion is:
elliptical with all sides active. - CORRECT-ANSWERSUltrasonic scaler motion
j. The dental hygienist has just removed the instrument cassette from the autoclave. The
indicator tape on the wrapping has turned brown. Which of the following is assured?
The instruments have been heat processed. - CORRECT-ANSWERSIndicator tape on
autoclave
k. Which stain is not caused by poor oral hygiene? - CORRECT-ANSWERSStains caused by
poor oral hygiene
l. There are four classifications of furcations. With Class III furcation, there is severe bone
loss with recession and the Nabers probe can pass between the roots. - CORRECT-
ANSWERSClass III furcation
m. Which agency monitors the fluoride in the community drinking water supply? -
CORRECT-ANSWERSAgency monitoring fluoride in community drinking water
,n. What is the first measure to take when a child ingests a toxic amount of topical
fluoride? - CORRECT-ANSWERSFirst measure for fluoride toxicity
o. Which stain can stannous fluoride cause? - CORRECT-ANSWERSStain caused by
stannous fluoride
p. How long can symptoms of acute fluoride toxicity last? Up to 24 hours. - CORRECT-
ANSWERSSymptoms of acute fluoride toxicity duration
q. From the following list, select five (5) items associated with Chlorhexidine. - CORRECT-
ANSWERSChlorhexidine effects
r. >5 mg/kg - CORRECT-ANSWERSSafely tolerated dose for topical fluoride
s. Fluorosis. - CORRECT-ANSWERSSigns and symptoms of acute fluoride toxicity
EXCEPT
t. 1 ppm - CORRECT-ANSWERSFluorosis observed in drinking fluoridated water
beginning at
u. None. - CORRECT-ANSWERSFluoride supplementation for a 5-year-old with well water
< 0.3 ppm
v. 1.23% APF. - CORRECT-ANSWERSPreferred type of professional topical fluoride
application for composite veneer bonding
w. Tablets. - CORRECT-ANSWERSFluoride home-care regimens EXCEPT
, x. Tachycardia. - CORRECT-ANSWERSIndicates a rapid pulse rate
y. is recommended for patients with xerostomia. - CORRECT-ANSWERSDaily use of self-
applied topical fluoride
z. It corrodes carbon-steel instruments. - CORRECT-ANSWERSDisadvantages of steam
sterilization
aa. Monitors the fluoride in bottled water. - CORRECT-ANSWERSFDA's role in monitoring
fluoride
bb. Denotes a retrognathic profile with one or more anterior teeth inclined lingually. -
CORRECT-ANSWERSClass II, division II profile
cc. Class V. - CORRECT-ANSWERSG.V. Black Classification of decay on cervical 1/3
dd. Leaves a residue on surfaces. - CORRECT-ANSWERSDisadvantages of a phenol
disinfectant
ee. Sodium fluoride, sodium silicofluoride, hydrofluorosilicic acid. - CORRECT-
ANSWERSCompounds used to fluoridate community drinking water systems
ff. Elliptical with all sides active. - CORRECT-ANSWERSMagnetostrictive ultrasonic scaler
motion
gg. Describes a piezoelectric scaler. - CORRECT-ANSWERSLinear motion with active
lateral sides
BOARD EXAM 2024-2025
a. Each of the following is a property of a good disinfectant EXCEPT one. - CORRECT-
ANSWERSGood disinfectant properties
b. One of the disadvantages of steam sterilization is that it may not kill spores. -
CORRECT-ANSWERSDisadvantages of steam sterilization
c. Each of the following is an example of regulated biohazard waste EXCEPT one. -
CORRECT-ANSWERSRegulated biohazard waste
d. Which agency monitors the fluoride in bottled water? - CORRECT-ANSWERSAgency
monitoring fluoride in bottled water
e. Referring to Angle's classification for occlusion for the permanent dentition, a Class II,
division II (2) denotes a profile that is retrognathic, with one or more anterior teeth
inclined lingually. - CORRECT-ANSWERSAngle's classification Class II, division II
f. Clinically, the dentist finds evidence of decay on the cervical 1/3 of the facial of tooth
#8. The G.V. Black Classification of this decay is: V. - CORRECT-ANSWERSG.V. Black
Classification of decay
,g. One of the disadvantages of a phenol disinfectant is that it is corrosive to metals. -
CORRECT-ANSWERSDisadvantages of phenol disinfectant
h. Each of the following is a compound used to fluoridate community drinking water
systems EXCEPT one. - CORRECT-ANSWERSCompounds used to fluoridate drinking
water
i. The dental hygienist is planning to use an ultrasonic scaler on his/her patient. Motion is:
elliptical with all sides active. - CORRECT-ANSWERSUltrasonic scaler motion
j. The dental hygienist has just removed the instrument cassette from the autoclave. The
indicator tape on the wrapping has turned brown. Which of the following is assured?
The instruments have been heat processed. - CORRECT-ANSWERSIndicator tape on
autoclave
k. Which stain is not caused by poor oral hygiene? - CORRECT-ANSWERSStains caused by
poor oral hygiene
l. There are four classifications of furcations. With Class III furcation, there is severe bone
loss with recession and the Nabers probe can pass between the roots. - CORRECT-
ANSWERSClass III furcation
m. Which agency monitors the fluoride in the community drinking water supply? -
CORRECT-ANSWERSAgency monitoring fluoride in community drinking water
,n. What is the first measure to take when a child ingests a toxic amount of topical
fluoride? - CORRECT-ANSWERSFirst measure for fluoride toxicity
o. Which stain can stannous fluoride cause? - CORRECT-ANSWERSStain caused by
stannous fluoride
p. How long can symptoms of acute fluoride toxicity last? Up to 24 hours. - CORRECT-
ANSWERSSymptoms of acute fluoride toxicity duration
q. From the following list, select five (5) items associated with Chlorhexidine. - CORRECT-
ANSWERSChlorhexidine effects
r. >5 mg/kg - CORRECT-ANSWERSSafely tolerated dose for topical fluoride
s. Fluorosis. - CORRECT-ANSWERSSigns and symptoms of acute fluoride toxicity
EXCEPT
t. 1 ppm - CORRECT-ANSWERSFluorosis observed in drinking fluoridated water
beginning at
u. None. - CORRECT-ANSWERSFluoride supplementation for a 5-year-old with well water
< 0.3 ppm
v. 1.23% APF. - CORRECT-ANSWERSPreferred type of professional topical fluoride
application for composite veneer bonding
w. Tablets. - CORRECT-ANSWERSFluoride home-care regimens EXCEPT
, x. Tachycardia. - CORRECT-ANSWERSIndicates a rapid pulse rate
y. is recommended for patients with xerostomia. - CORRECT-ANSWERSDaily use of self-
applied topical fluoride
z. It corrodes carbon-steel instruments. - CORRECT-ANSWERSDisadvantages of steam
sterilization
aa. Monitors the fluoride in bottled water. - CORRECT-ANSWERSFDA's role in monitoring
fluoride
bb. Denotes a retrognathic profile with one or more anterior teeth inclined lingually. -
CORRECT-ANSWERSClass II, division II profile
cc. Class V. - CORRECT-ANSWERSG.V. Black Classification of decay on cervical 1/3
dd. Leaves a residue on surfaces. - CORRECT-ANSWERSDisadvantages of a phenol
disinfectant
ee. Sodium fluoride, sodium silicofluoride, hydrofluorosilicic acid. - CORRECT-
ANSWERSCompounds used to fluoridate community drinking water systems
ff. Elliptical with all sides active. - CORRECT-ANSWERSMagnetostrictive ultrasonic scaler
motion
gg. Describes a piezoelectric scaler. - CORRECT-ANSWERSLinear motion with active
lateral sides
