DH Theory I Final Dental Hygiene
Which food has a higher amount of fluoride?
a. Meat
b. Tea
c. Eggs
d. Vegetables - ANS- B
Brewed tea typically contains higher levels of fluoride than most foods, depending
on the type of tea and its source, because tea plants take up fluoride from soil [1,3].
Fluoride levels can range from 0.3 to 6.5 mg/L (0.07 to 1.5 mg/cup) in brewed tea
made with distilled water [3]
Some incipient carious lesions may be arrested with the application of pit and
fissure sealants. An adult patient with xerostomia is contraindicated for sealant
placement.
a. Statement A is incorrect and statement B is correct.
b. Statement A is incorrect and statement B is incorrect.
c. Statement A is correct and statement B is correct.
d. Statement A is correct and statement B is incorrect. - ANS- D
What is the maximum amount of NaF that can be dispensed per household at one
time?
a. There is no limit to the amount dispensed per household.
b. No more than 396 mg NaF (180 mg of fluoride)
c. No more than 132 mg NaF (60 mg of fluoride)
d. No more than 264 mg NaF (120 mg of fluoride) - ANS- D
The maximum amount of sodium fluoride (NaF) that can be dispensed at one time
is 264 mg (120 mg fluoride). This is the recommended amount for fluoride
supplements, fluoride rinses, and gels.
What are the purposes of isolating the teeth being sealed?
a. To keep the acid etch away from the teeth and only on the soft tissue
b. To keep the teeth from contacting the soft oral tissues
c. To keep the teeth from saliva contamination
,d. To keep the teeth damp for optimum bonding action - ANS- C
If resin-based dental sealant material is used, meticulous isolation of tooth
surfaces to avoid saliva contamination is a critical step in the sealant-application
process.
Which of the following enamel surfaces will absorb the most fluoride when exposed
in the oral environment?
a. Exposed enamel in the furcation area of #19
b. Demineralized enamel on the facial surface of #30
c. Enamel covered by a dental sealant
d. The palatal root of the maxillary first molar
e. Sound enamel on the facial surface of #8 - ANS- B
Which one of the following is NOT an accurate statement concerning testing
instrument sharpness?
a. Test for sharpness after one or two strokes
b. Apply testing stick along the entire cutting edges
c. Use metal 1/4-inch rod, 3 inches long
d. When instrument is sharp it engages the test stick. - ANS- C
Which of the following is not an indication for sealant placement?
a. Proximal dental caries
b. Xerostomia
c. Incipient caries
d. Patient is undergoing orthodontics. - ANS- A
What is the correct dietary fluoride supplement for a 4-year-old child who lives in
an area that has a 0.5 ppm concentration of fluoride in the water?
a. No supplement is recommended
b. 2.0 mg
c. 0.25 mg
d. 0.5 mg
e. 1.0 mg - ANS- C
, Which of the following recommendations would you least likely give to a patient
experiencing toothbrush abrasion?
a. Explain the problem to the patient to ensure full cooperation
b. Recommend a less-abrasive dentifrice
c. Advise use of a specific brush with end-rounded filaments
d. Change or correct the toothbrushing procedure
e. Suggest that the patient spend a longer time brushing his or her teeth - ANS- E
The dental hygiene diagnosis serves which function?
a. Identify chronic diseases affecting the patient's cardiovascular health
b. Prescribe medications to alleviate pain
c. Identify patient needs that can be met by implementing treatment and education
interventions that are within the scope of dental hygiene practice
d. Identify diseases and conditions for which the dentist will provide treatment -
ANS- C
The sequence in brushing for any method used should:
a. begin in the same place each time you brush.
b. ensure that you brush the areas that are easiest first.
c. begin in the anterior region of the oral cavity and work posterior.
d. ensure complete coverage for each tooth surface.
e. not worry about any particular sequence. - ANS- D
What is the purpose of having the patient perform a preprocedural antimicrobial
rinse?
a. To control pain and discomfort during treatment
b. To obtain better gingival healing
c. To condition the tissue
d. To lower the bacterial count in aerosols - ANS- D
When you provide oral care based on relevant, scientifically sound research, it is
called:
a. prognosis.
b. assessment.
Which food has a higher amount of fluoride?
a. Meat
b. Tea
c. Eggs
d. Vegetables - ANS- B
Brewed tea typically contains higher levels of fluoride than most foods, depending
on the type of tea and its source, because tea plants take up fluoride from soil [1,3].
Fluoride levels can range from 0.3 to 6.5 mg/L (0.07 to 1.5 mg/cup) in brewed tea
made with distilled water [3]
Some incipient carious lesions may be arrested with the application of pit and
fissure sealants. An adult patient with xerostomia is contraindicated for sealant
placement.
a. Statement A is incorrect and statement B is correct.
b. Statement A is incorrect and statement B is incorrect.
c. Statement A is correct and statement B is correct.
d. Statement A is correct and statement B is incorrect. - ANS- D
What is the maximum amount of NaF that can be dispensed per household at one
time?
a. There is no limit to the amount dispensed per household.
b. No more than 396 mg NaF (180 mg of fluoride)
c. No more than 132 mg NaF (60 mg of fluoride)
d. No more than 264 mg NaF (120 mg of fluoride) - ANS- D
The maximum amount of sodium fluoride (NaF) that can be dispensed at one time
is 264 mg (120 mg fluoride). This is the recommended amount for fluoride
supplements, fluoride rinses, and gels.
What are the purposes of isolating the teeth being sealed?
a. To keep the acid etch away from the teeth and only on the soft tissue
b. To keep the teeth from contacting the soft oral tissues
c. To keep the teeth from saliva contamination
,d. To keep the teeth damp for optimum bonding action - ANS- C
If resin-based dental sealant material is used, meticulous isolation of tooth
surfaces to avoid saliva contamination is a critical step in the sealant-application
process.
Which of the following enamel surfaces will absorb the most fluoride when exposed
in the oral environment?
a. Exposed enamel in the furcation area of #19
b. Demineralized enamel on the facial surface of #30
c. Enamel covered by a dental sealant
d. The palatal root of the maxillary first molar
e. Sound enamel on the facial surface of #8 - ANS- B
Which one of the following is NOT an accurate statement concerning testing
instrument sharpness?
a. Test for sharpness after one or two strokes
b. Apply testing stick along the entire cutting edges
c. Use metal 1/4-inch rod, 3 inches long
d. When instrument is sharp it engages the test stick. - ANS- C
Which of the following is not an indication for sealant placement?
a. Proximal dental caries
b. Xerostomia
c. Incipient caries
d. Patient is undergoing orthodontics. - ANS- A
What is the correct dietary fluoride supplement for a 4-year-old child who lives in
an area that has a 0.5 ppm concentration of fluoride in the water?
a. No supplement is recommended
b. 2.0 mg
c. 0.25 mg
d. 0.5 mg
e. 1.0 mg - ANS- C
, Which of the following recommendations would you least likely give to a patient
experiencing toothbrush abrasion?
a. Explain the problem to the patient to ensure full cooperation
b. Recommend a less-abrasive dentifrice
c. Advise use of a specific brush with end-rounded filaments
d. Change or correct the toothbrushing procedure
e. Suggest that the patient spend a longer time brushing his or her teeth - ANS- E
The dental hygiene diagnosis serves which function?
a. Identify chronic diseases affecting the patient's cardiovascular health
b. Prescribe medications to alleviate pain
c. Identify patient needs that can be met by implementing treatment and education
interventions that are within the scope of dental hygiene practice
d. Identify diseases and conditions for which the dentist will provide treatment -
ANS- C
The sequence in brushing for any method used should:
a. begin in the same place each time you brush.
b. ensure that you brush the areas that are easiest first.
c. begin in the anterior region of the oral cavity and work posterior.
d. ensure complete coverage for each tooth surface.
e. not worry about any particular sequence. - ANS- D
What is the purpose of having the patient perform a preprocedural antimicrobial
rinse?
a. To control pain and discomfort during treatment
b. To obtain better gingival healing
c. To condition the tissue
d. To lower the bacterial count in aerosols - ANS- D
When you provide oral care based on relevant, scientifically sound research, it is
called:
a. prognosis.
b. assessment.
