DH-101 Exam Questions with Verified
Solutions
What is bacteremia that could possibly lead to infectious endocarditis? - ANSWER-We
are concerned about creating this with a patient who may need antibiotic premedication
when oral tissues are manipulated.
What are standard precautions? - ANSWER-When all human blood and certain body
fluids
are treated as if 'known to be infectious' with
blood-borne pathogens.
What is 4.5 to 5.5 pH? - ANSWER-This is the critical pH for enamel demineralization.
***What is cementum? - ANSWER-This seals the tubules of the root dentin and provide
attachment for the periodontal fiber groups.
What allows for consent of planned treatment; listing the sequence of treatment
rendered; and informing the patient of the length of treatment? - ANSWER-Explaining
the plan to the patient.
How does one use the Universal Tooth Numbering System? - ANSWER-Using the
Universal tooth numbering system, know the #'s of the permanent dentition 1 - 32 and
there corresponding names.
For instance, # 11 is the maxillary left canine.
***What is hyperkeratosis? - ANSWER-This is a leathery, hard, &/or nodular surface in
the mouth.
***What is completely untrue about the disease of caries since it still exists? -
ANSWER-Caries is a disease that is completely wiped out ( eradicated).
Who is the father of dental hygiene? - ANSWER-Dr. Alfred C. Fones
What is the main objective of an extraoral and intraoral examination? - ANSWER-To
detect oral cancer at an early stage.
What is a pocket? - ANSWER-This is a diseased gingival sulcus.
What is a red area of variable size and shape on tissues? - ANSWER-This is the
definition of erythema?
, ***What is the purpose of proximal contacts between teeth? - ANSWER-This prevents
food impaction; stabilizes the position of teeth in the arch; and prevents drifting.
What is 'inhalation'? - ANSWER-This is the primary transmission route for tuberculosis.
What are: restorations, exposed tooth surfaces, dental calculus, and crowns? -
ANSWER-These are what the acquired pellicle forms on.
What is poor oral hygiene? - ANSWER-This is the first risk factor for caries.
***What is carpal tunnel syndrome? - ANSWER-This condition can develop when one
works consistently with a bent wrist while scaling.
What are: enamel, root surfaces, occlusal surfaces, bridges & dentures? - ANSWER-
These are some of the places where dental calculus can develop.
What is 'local' enamel hypoplasia? - ANSWER-These are white spots on a single tooth
due to ameloblastic disturbances.
***What effect does betel-leaf have on the teeth? - ANSWER-This has a caries-
inhibiting effect, but also severely stains the teeth.
What is the MOHS hardness value
of a material refer to? - ANSWER-It shows a material's resistance to
scratching.
***What is the maximum MOHS
value of a diamond? - ANSWER-10
***Which substance would have the highest MOHS value after
diamonds? - ANSWER-The most abrasive polishing agent available which is silicon
carbine.
***What is buffering the acids? - ANSWER-Although saliva has many important
functions, this is the MOST important.
The maximum caries-inhibiting effect of fluoride is when there has been systemic
exposure prior to tooth eruption and when else? - ANSWER-When there is also
frequent topical fluoride exposure throughout life.
Where is the 'radial' artery? - ANSWER-This is where one would first feel for a pulse in
a dental office.
Can fluoride penetrate biofilm? - ANSWER-Yes
Solutions
What is bacteremia that could possibly lead to infectious endocarditis? - ANSWER-We
are concerned about creating this with a patient who may need antibiotic premedication
when oral tissues are manipulated.
What are standard precautions? - ANSWER-When all human blood and certain body
fluids
are treated as if 'known to be infectious' with
blood-borne pathogens.
What is 4.5 to 5.5 pH? - ANSWER-This is the critical pH for enamel demineralization.
***What is cementum? - ANSWER-This seals the tubules of the root dentin and provide
attachment for the periodontal fiber groups.
What allows for consent of planned treatment; listing the sequence of treatment
rendered; and informing the patient of the length of treatment? - ANSWER-Explaining
the plan to the patient.
How does one use the Universal Tooth Numbering System? - ANSWER-Using the
Universal tooth numbering system, know the #'s of the permanent dentition 1 - 32 and
there corresponding names.
For instance, # 11 is the maxillary left canine.
***What is hyperkeratosis? - ANSWER-This is a leathery, hard, &/or nodular surface in
the mouth.
***What is completely untrue about the disease of caries since it still exists? -
ANSWER-Caries is a disease that is completely wiped out ( eradicated).
Who is the father of dental hygiene? - ANSWER-Dr. Alfred C. Fones
What is the main objective of an extraoral and intraoral examination? - ANSWER-To
detect oral cancer at an early stage.
What is a pocket? - ANSWER-This is a diseased gingival sulcus.
What is a red area of variable size and shape on tissues? - ANSWER-This is the
definition of erythema?
, ***What is the purpose of proximal contacts between teeth? - ANSWER-This prevents
food impaction; stabilizes the position of teeth in the arch; and prevents drifting.
What is 'inhalation'? - ANSWER-This is the primary transmission route for tuberculosis.
What are: restorations, exposed tooth surfaces, dental calculus, and crowns? -
ANSWER-These are what the acquired pellicle forms on.
What is poor oral hygiene? - ANSWER-This is the first risk factor for caries.
***What is carpal tunnel syndrome? - ANSWER-This condition can develop when one
works consistently with a bent wrist while scaling.
What are: enamel, root surfaces, occlusal surfaces, bridges & dentures? - ANSWER-
These are some of the places where dental calculus can develop.
What is 'local' enamel hypoplasia? - ANSWER-These are white spots on a single tooth
due to ameloblastic disturbances.
***What effect does betel-leaf have on the teeth? - ANSWER-This has a caries-
inhibiting effect, but also severely stains the teeth.
What is the MOHS hardness value
of a material refer to? - ANSWER-It shows a material's resistance to
scratching.
***What is the maximum MOHS
value of a diamond? - ANSWER-10
***Which substance would have the highest MOHS value after
diamonds? - ANSWER-The most abrasive polishing agent available which is silicon
carbine.
***What is buffering the acids? - ANSWER-Although saliva has many important
functions, this is the MOST important.
The maximum caries-inhibiting effect of fluoride is when there has been systemic
exposure prior to tooth eruption and when else? - ANSWER-When there is also
frequent topical fluoride exposure throughout life.
Where is the 'radial' artery? - ANSWER-This is where one would first feel for a pulse in
a dental office.
Can fluoride penetrate biofilm? - ANSWER-Yes
