ARF Board Exam Questions with all Correct & 100%
Verified Answers |Actual Complete Exam |Already
Graded A+
Which method of stain removal is indicated for patients with dental implants? ✔Correct
Answer-Air polishing
The hazardous waste manual contains documents about all chemicals used in the clinic and the
MSDS contains information about all products used in the clinic (T/F) ✔Correct Answer-TRUE
Which power scaler operates in the range of 20,000-45,000 cycles per second? ✔Correct
Answer-Ultrasonic
The best way to determine if instruments are completely sterilized is to check the indicator
strip. (T/F) ✔Correct Answer-FALSE; spore testing is the best way to ensure complete
sterilization
Which type of intrinsic stain appears chalky white on eruption and later turns brown?
✔Correct Answer-Fluorosis
The maxillary central incisors do not align with the inter proximal of the mandibular central
incisors in which type of occlusion? ✔Correct Answer-Midline deviation
Which method of sterilization is recommended for metal instruments and operates at 160
degrees C (320 degrees F) for 60-120 minutes? ✔Correct Answer-Dry heat
Which method of sterilization operates at 132 degrees C (270 degrees F) and 20-40 psi for 20
minutes and uses the Bacillus stearothermophilus spore testing? ✔Correct Answer-
Unsaturated chemical vapor
Which ingredient is added to toothpaste to prevent dentinal hypersensitivity? ✔Correct
Answer-Potassium nitrate
Which one is defined as an abnormally HIGH heart rate, usually above 150 BPM? ✔Correct
Answer-Tachycardia
Which type of furcations do maxillary molars have? ✔Correct Answer-Trifurcation
Which one is defined as a slowness of the heartbeat evidenced by a decrease in the pulse rate
to less than 60 BPM? ✔Correct Answer-Bradycardia
,Which level of disinfectant is commonly used in dental offices? ✔Correct Answer-
Intermediate
Oral irrigators are the MOST effective method of removing plaque when compared to other oral
hygiene aids. (T/F) ✔Correct Answer-FALSE; they are the LEAST effective because they only
remove loosely adherent plaque
Which one is the last distinct sound heard when taking blood pressure? ✔Correct Answer-
Diastolic
The air polisher is recommended on patients with bronchitis. (T/F) ✔Correct Answer-FALSE;
contraindicated
Which disinfectant is considered high-level? ✔Correct Answer-Glutaraldehyde
An ideal disinfectant should be toxic. (T/F) ✔Correct Answer-FALSE; should NOT be
Which one contains 3, 6, 9, and 12mm markings? ✔Correct Answer-Marquis probe
Movement of fluid within the dentinal tubules is the most common cause of dentinal
hypersensitivity/ (T/F) ✔Correct Answer-TRUE
Topical fluoride is most effective on which surface? ✔Correct Answer-Smooth surfaces
Calculus is most easily removed when it is attached to enamel. (T/F) ✔Correct Answer-FALSE;
most easily removed when attached to pellicle
Which one contains 1,2,3,4,5,6,7,8,9 and 10mm markings? ✔Correct Answer-Williams probe
Which agency monitors water fluoridation? ✔Correct Answer-EPA
Bacillus subtilis spore testing is used with dry heat and ethylene oxide sterilization/ (T/F)
✔Correct Answer-TRUE
Sodium fluoride causes brown stain. (T/F) ✔Correct Answer-FALSE
Which G.V. Black classification includes the proximal surface of anterior teeth involving the
incisal edge? ✔Correct Answer-Class IV
When a child ingests a toxic amount of fluoride, you should have them drink milk. (T/F)
✔Correct Answer-FALSE; induce vomiting
Which type of bacteria is involved in the caries process? ✔Correct Answer-Streptococcus
mutans
, The goal of periodontal debridement is to produce a tooth surface that is biologically healthy.
(T/F) ✔Correct Answer-TRUE
Which Gracey curet is used for the direct lingual and facial surfaces of posterior teeth?
✔Correct Answer-7-8
Which type of instrument generates no heat, but still produces water to provide the benefits of
lavage? ✔Correct Answer-Sonic
Which one uses Bacillus stearothermophilus spore testing? ✔Correct Answer-Steam
autoclave
Systemic fluoride is effective from 6 months to 14 years of age. (T/F) ✔Correct Answer-TRUE
The dominant bacteria in initial plaque are gram-negative motile rods and spirochetes. (T/F)
✔Correct Answer-FALSE; gram-positive Streptococcus are dominant in initial plaque
Which one presents teeth that are not in occlusion between the maxillary and mandibular arch?
✔Correct Answer-Open bite
The certainly lethal dose (CLD) of sodium fluoride for a child is 5 to 10 grams. (T/F) ✔Correct
Answer-FALSE; 5-10grams is the adult CLD, Child CLD is .5-1g
Which type of explorer has a straight Lower shank that permits use in deep pockets with only
slight tissue displacement? ✔Correct Answer-Orban-type
Symptoms of acute fluoride toxicity begin within 30 minutes of ingestion and may continue up
to 24 hours. (T/F) ✔Correct Answer-TRUE
Which one may cause gingival sloughing and discoloration of tooth-colored fillings? ✔Correct
Answer-Stannous fluoride
Calculus and bleeding may interfere with probe readings. (T/F) ✔Correct Answer-TRUE
Binders are added to toothpaste to help maintain moisture and consistency. (T/F) ✔Correct
Answer-FALSE; binders are added to thicken toothpaste
Teeth should be wet before performing a pulp vitality test to prevent the current from passing
to the gingiva. (T/F) ✔Correct Answer-FALSE; teeth should be dry
Which method of stain removal is ideal for stain found on cementum? ✔Correct Answer-
Instrumentation
Verified Answers |Actual Complete Exam |Already
Graded A+
Which method of stain removal is indicated for patients with dental implants? ✔Correct
Answer-Air polishing
The hazardous waste manual contains documents about all chemicals used in the clinic and the
MSDS contains information about all products used in the clinic (T/F) ✔Correct Answer-TRUE
Which power scaler operates in the range of 20,000-45,000 cycles per second? ✔Correct
Answer-Ultrasonic
The best way to determine if instruments are completely sterilized is to check the indicator
strip. (T/F) ✔Correct Answer-FALSE; spore testing is the best way to ensure complete
sterilization
Which type of intrinsic stain appears chalky white on eruption and later turns brown?
✔Correct Answer-Fluorosis
The maxillary central incisors do not align with the inter proximal of the mandibular central
incisors in which type of occlusion? ✔Correct Answer-Midline deviation
Which method of sterilization is recommended for metal instruments and operates at 160
degrees C (320 degrees F) for 60-120 minutes? ✔Correct Answer-Dry heat
Which method of sterilization operates at 132 degrees C (270 degrees F) and 20-40 psi for 20
minutes and uses the Bacillus stearothermophilus spore testing? ✔Correct Answer-
Unsaturated chemical vapor
Which ingredient is added to toothpaste to prevent dentinal hypersensitivity? ✔Correct
Answer-Potassium nitrate
Which one is defined as an abnormally HIGH heart rate, usually above 150 BPM? ✔Correct
Answer-Tachycardia
Which type of furcations do maxillary molars have? ✔Correct Answer-Trifurcation
Which one is defined as a slowness of the heartbeat evidenced by a decrease in the pulse rate
to less than 60 BPM? ✔Correct Answer-Bradycardia
,Which level of disinfectant is commonly used in dental offices? ✔Correct Answer-
Intermediate
Oral irrigators are the MOST effective method of removing plaque when compared to other oral
hygiene aids. (T/F) ✔Correct Answer-FALSE; they are the LEAST effective because they only
remove loosely adherent plaque
Which one is the last distinct sound heard when taking blood pressure? ✔Correct Answer-
Diastolic
The air polisher is recommended on patients with bronchitis. (T/F) ✔Correct Answer-FALSE;
contraindicated
Which disinfectant is considered high-level? ✔Correct Answer-Glutaraldehyde
An ideal disinfectant should be toxic. (T/F) ✔Correct Answer-FALSE; should NOT be
Which one contains 3, 6, 9, and 12mm markings? ✔Correct Answer-Marquis probe
Movement of fluid within the dentinal tubules is the most common cause of dentinal
hypersensitivity/ (T/F) ✔Correct Answer-TRUE
Topical fluoride is most effective on which surface? ✔Correct Answer-Smooth surfaces
Calculus is most easily removed when it is attached to enamel. (T/F) ✔Correct Answer-FALSE;
most easily removed when attached to pellicle
Which one contains 1,2,3,4,5,6,7,8,9 and 10mm markings? ✔Correct Answer-Williams probe
Which agency monitors water fluoridation? ✔Correct Answer-EPA
Bacillus subtilis spore testing is used with dry heat and ethylene oxide sterilization/ (T/F)
✔Correct Answer-TRUE
Sodium fluoride causes brown stain. (T/F) ✔Correct Answer-FALSE
Which G.V. Black classification includes the proximal surface of anterior teeth involving the
incisal edge? ✔Correct Answer-Class IV
When a child ingests a toxic amount of fluoride, you should have them drink milk. (T/F)
✔Correct Answer-FALSE; induce vomiting
Which type of bacteria is involved in the caries process? ✔Correct Answer-Streptococcus
mutans
, The goal of periodontal debridement is to produce a tooth surface that is biologically healthy.
(T/F) ✔Correct Answer-TRUE
Which Gracey curet is used for the direct lingual and facial surfaces of posterior teeth?
✔Correct Answer-7-8
Which type of instrument generates no heat, but still produces water to provide the benefits of
lavage? ✔Correct Answer-Sonic
Which one uses Bacillus stearothermophilus spore testing? ✔Correct Answer-Steam
autoclave
Systemic fluoride is effective from 6 months to 14 years of age. (T/F) ✔Correct Answer-TRUE
The dominant bacteria in initial plaque are gram-negative motile rods and spirochetes. (T/F)
✔Correct Answer-FALSE; gram-positive Streptococcus are dominant in initial plaque
Which one presents teeth that are not in occlusion between the maxillary and mandibular arch?
✔Correct Answer-Open bite
The certainly lethal dose (CLD) of sodium fluoride for a child is 5 to 10 grams. (T/F) ✔Correct
Answer-FALSE; 5-10grams is the adult CLD, Child CLD is .5-1g
Which type of explorer has a straight Lower shank that permits use in deep pockets with only
slight tissue displacement? ✔Correct Answer-Orban-type
Symptoms of acute fluoride toxicity begin within 30 minutes of ingestion and may continue up
to 24 hours. (T/F) ✔Correct Answer-TRUE
Which one may cause gingival sloughing and discoloration of tooth-colored fillings? ✔Correct
Answer-Stannous fluoride
Calculus and bleeding may interfere with probe readings. (T/F) ✔Correct Answer-TRUE
Binders are added to toothpaste to help maintain moisture and consistency. (T/F) ✔Correct
Answer-FALSE; binders are added to thicken toothpaste
Teeth should be wet before performing a pulp vitality test to prevent the current from passing
to the gingiva. (T/F) ✔Correct Answer-FALSE; teeth should be dry
Which method of stain removal is ideal for stain found on cementum? ✔Correct Answer-
Instrumentation
