DH 101 FINAL EXAM QUESTIONS AND
CORRECT ANSWERS!!
Which of the following are MODIFIABLE risk factors for periodontal disease? Select all
that apply.
Smoking
Diet
Obesity
The primary etiology of periodontal disease is bacteria that initiate the inflammatory
process.
True
Which periodontal lesion appears within 2-4 days in response to bacterial accumulation
and involves migration and infiltration of white blood cells (neutrophils) into the junctional
epithelium and gingival sulcus result from the natural body response to infectious agents.
Initial lesion
The cariogram is the only caries risk assessment that is showing validity at this time.
True
Match the following furcation classifications with their descriptions.
Class I
early, beginning involvement
Match the following furcation classifications with their descriptions.
Class II
moderate involvement, in which the furcation can be probed but not through and through
Match the following furcation classifications with their descriptions.
Class III
, severe involvement, when the bone between the roots is destroyed and a probe can be passed
through
Which of the following bacteria are the infectious organisms that colonize the teeth, help to
form dental biofilm, and are responsible for the dental caries process?
Streptococcus mutans
Maintaining a neutral or basic saliva pH of 5.5 is necessary to maximize remineralization.
After an exposure to fermentable carbohydrate, the pH drops to the critical pH of 7 at
which point demineralization occurs.
Both statements are false
What is defined as the natural repair process of moving minerals back into the subsurface
of the intact enamel?
remineralization
What is the correct face to tooth angulation when using a sickle scaler on the mandibular
anterior teeth?
70° - 80°
What is the correct face to tooth angulation of an instrument when scaling subgingivally
with a universal curet?
70° - 80°
Acquired pellicle is found on all tooth surfaces but is thickest subgingivally below the
gingival margin.
False
Immediately upon exposure to saliva after eruption or after all soft and hard deposits have
been removed from the tooth surfaces pellicle begins to form and is fully formed within
________.
30-90 minutes
CORRECT ANSWERS!!
Which of the following are MODIFIABLE risk factors for periodontal disease? Select all
that apply.
Smoking
Diet
Obesity
The primary etiology of periodontal disease is bacteria that initiate the inflammatory
process.
True
Which periodontal lesion appears within 2-4 days in response to bacterial accumulation
and involves migration and infiltration of white blood cells (neutrophils) into the junctional
epithelium and gingival sulcus result from the natural body response to infectious agents.
Initial lesion
The cariogram is the only caries risk assessment that is showing validity at this time.
True
Match the following furcation classifications with their descriptions.
Class I
early, beginning involvement
Match the following furcation classifications with their descriptions.
Class II
moderate involvement, in which the furcation can be probed but not through and through
Match the following furcation classifications with their descriptions.
Class III
, severe involvement, when the bone between the roots is destroyed and a probe can be passed
through
Which of the following bacteria are the infectious organisms that colonize the teeth, help to
form dental biofilm, and are responsible for the dental caries process?
Streptococcus mutans
Maintaining a neutral or basic saliva pH of 5.5 is necessary to maximize remineralization.
After an exposure to fermentable carbohydrate, the pH drops to the critical pH of 7 at
which point demineralization occurs.
Both statements are false
What is defined as the natural repair process of moving minerals back into the subsurface
of the intact enamel?
remineralization
What is the correct face to tooth angulation when using a sickle scaler on the mandibular
anterior teeth?
70° - 80°
What is the correct face to tooth angulation of an instrument when scaling subgingivally
with a universal curet?
70° - 80°
Acquired pellicle is found on all tooth surfaces but is thickest subgingivally below the
gingival margin.
False
Immediately upon exposure to saliva after eruption or after all soft and hard deposits have
been removed from the tooth surfaces pellicle begins to form and is fully formed within
________.
30-90 minutes
