DENTAL HYGIENE HESI LATEST
EXAM
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
What type of assessment is the estimation of likelihood that an event will occur in
the future? - ANSWERS-Risk assessment
QUESTION 2
T/F: Dental caries is a multifactorial, preventable, and transmissible disease
process. Periodontal disease is the most common dental disease in children and
adults. - ANSWERS-First statement is true; second is false; dental caries are the
most common dental disease in adults and children, not periodontal disease.
QUESTION 3
What are the 4 primary factors needed for the development of dental caries? -
ANSWERS-1. susceptible host tooth
2. acidogenic bacteria
3. fermentable carbohydrates present
4. sufficient period for these factors to occur
END OF
PAGE
1
, DENTAL HYGIENE HESI LATEST
EXAM
QUESTION 4
T/F: The caries process is one time process of demineralization. The FIRST
clinical sign of dental caries are white spot lesions. - ANSWERS-The first
statement is false (the caries process is a continuous cyclic process of
demineralization and remineralization), the second statement is true.
QUESTION 5
What is a demineralized area of enamel that has an INTACT surface remaining
OVER the body of demineralized early carious lesion?
A. brown spot lesion
b. black spot lesion
C. grey spot lesion
d. white spot lesion - ANSWERS-white spot lesion
QUESTION 6
Which bacteria is the MAIN species involved in caries process and identified with
the EARLY LESION DEVELOPMENT? Is this type of bacteria gram negative or
positive?
END OF
PAGE
2
, DENTAL HYGIENE HESI LATEST
EXAM
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Streptococcus mutans; gram positive
QUESTION 7
Which bacteria is found in the LATER stages of caries development. and found in
LARGE NUMBERS AFTER the cavitation process? Is this type of bacteria
negative or positive?
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Lactobacillus species; gram positive
QUESTION 8
Which bacteria is associated with root caries?
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Actinomyces
END OF
PAGE
3
, DENTAL HYGIENE HESI LATEST
EXAM
QUESTION 9
What is the LOSS of CALCIUM AND PHOSPHATE from the enamel surfaces
that occurs when acid-producing bacteria METABOLIZE FERMENTABLE
CARBS?
A. Remineralization
B. Demineralization - ANSWERS-Demineralization
QUESTION 10
What is the normal pH of saliva? - ANSWERS-6.7 to 7.3
QUESTION 11
What does the pH of saliva have to be for demineralization of ENAMEL to occur?
- ANSWERS-4.5-5.5
QUESTION 12
END OF
PAGE
4
EXAM
ANSWER ALL QUESTIONS IN THIS SECTION
QUESTION 1
What type of assessment is the estimation of likelihood that an event will occur in
the future? - ANSWERS-Risk assessment
QUESTION 2
T/F: Dental caries is a multifactorial, preventable, and transmissible disease
process. Periodontal disease is the most common dental disease in children and
adults. - ANSWERS-First statement is true; second is false; dental caries are the
most common dental disease in adults and children, not periodontal disease.
QUESTION 3
What are the 4 primary factors needed for the development of dental caries? -
ANSWERS-1. susceptible host tooth
2. acidogenic bacteria
3. fermentable carbohydrates present
4. sufficient period for these factors to occur
END OF
PAGE
1
, DENTAL HYGIENE HESI LATEST
EXAM
QUESTION 4
T/F: The caries process is one time process of demineralization. The FIRST
clinical sign of dental caries are white spot lesions. - ANSWERS-The first
statement is false (the caries process is a continuous cyclic process of
demineralization and remineralization), the second statement is true.
QUESTION 5
What is a demineralized area of enamel that has an INTACT surface remaining
OVER the body of demineralized early carious lesion?
A. brown spot lesion
b. black spot lesion
C. grey spot lesion
d. white spot lesion - ANSWERS-white spot lesion
QUESTION 6
Which bacteria is the MAIN species involved in caries process and identified with
the EARLY LESION DEVELOPMENT? Is this type of bacteria gram negative or
positive?
END OF
PAGE
2
, DENTAL HYGIENE HESI LATEST
EXAM
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Streptococcus mutans; gram positive
QUESTION 7
Which bacteria is found in the LATER stages of caries development. and found in
LARGE NUMBERS AFTER the cavitation process? Is this type of bacteria
negative or positive?
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Lactobacillus species; gram positive
QUESTION 8
Which bacteria is associated with root caries?
A. Actinomyces
B. Streptococcus mutans
C. lactobacillus species - ANSWERS-Actinomyces
END OF
PAGE
3
, DENTAL HYGIENE HESI LATEST
EXAM
QUESTION 9
What is the LOSS of CALCIUM AND PHOSPHATE from the enamel surfaces
that occurs when acid-producing bacteria METABOLIZE FERMENTABLE
CARBS?
A. Remineralization
B. Demineralization - ANSWERS-Demineralization
QUESTION 10
What is the normal pH of saliva? - ANSWERS-6.7 to 7.3
QUESTION 11
What does the pH of saliva have to be for demineralization of ENAMEL to occur?
- ANSWERS-4.5-5.5
QUESTION 12
END OF
PAGE
4
