NJXDG EXAM STUDY GUIDE QUESTIONS
AND ANSWERS
Question 1
Applying topical fluoride gel or foam (efda)
Correct Answer
Selecting the tray
1) Select a disposable tray that is of the appropriate size for the patient's mouth.
The tray must be long and sufficiently deep to cover all erupted teeth completely
without extending beyond the distal surface of the most posterior tooth. Trays are
available in sizes to fit primary, mixed, and adult dentition. If the patient's mouth
can accommodate it, you may use a double-arch tray. This saves time by treating
both arches at the same time. Remember, trays are discarded after a single use & if
you try a tray in the mouth but do not use it that tray must be discarded.
Preparing the teeth
2) Check to see whether calculus is present; if it is not, no preparation is required.
Fluoride diffuses easily through the acquired pellicle and bacterial plaque.
3) If calculus is present, request that the dentist or dental hygienist remove it. The
presence of plaque will not affect the uptake of fluoride.
Applying the topical fluoride
4) Seat the patient in an upright position and explain the procedure. Having the pt
upright prevents gel from going into the throat.
5) Instruct the pt not to swallow the fluoride.
6) Select the appropriate tray, and load it with a minimal amount of fluoride,
following guidelines according to the patient's age.
7) Dry the teeth using air from the air water syringe. For fluoride to be maximally
effective, the teeth must be dry when the fluoride is applied.
8) Insert the tray, and place cotton rolls between the arches. Ask the patient to bite
up and down gently on the cotton rolls, to squeeze the fluoride over all tooth
surfaces.
9) promptly place the saliva ejector, and tilt the patient's head forward.
10) Set the timer for the appropriate amount of time in accordance with the
manufacturer's instructions. During this time, do not leave the patient unattended.
11) On comp
Page 1 of 111
,Question 2
Applying fluoride varnish (EFDA)
Correct Answer
1) Obtain informed consent from the pt, or parent/legal guardian in the case of a
minor patient. Informed consent is a legal requirement for the provision of any
dental treatment.
2) Gather supplies and single-unit dose for application. Once you begin the
procedure, you will not be able to stop in your the middle to get something you
forgot.
3) Recline the pt to an ergonomically correct position for better access to the oral
cavity & be in a comfortable position.
4) Wipe the teeth to be varnished with the gauze or cotton roll & insert the saliva
ejector. The varnish is not moisture sensitive and can be applied in the presence of
saliva, the saliva ejector is for pt comfort only.
5) Using a cotton tip applicator, brush or syringe applicator, apply 0.3 to 0.5 ml of
varnish (unit dose) to clinical crown of teeth; application time is 1-3 minutes. Refer
to manufacturer's instructions for specific application time.
6) Dental floss may be used to draw the varnish inter-proximally.
7) allow pt to rinse after the procedure has been completed to remove any residual
taste.
8) Remind the pt to avoid eating hard foods, drinking hot or alcoholic beverages,
brushing, and flossing for at least 4-6 hours, or preferably until the next day after
the application. Drink through a straw for the first few hours after application.
Documentation
- date
- "applied 0.3 ml of 5% sodium fluoride varnish (insert brand name) on facial and
lingual surfaces of teeth #s 6-14, and 19-30.
- operator
Page 2 of 111
,Question 3
Assisting patient with dental floss (EFDA)
Correct Answer
Preparing the floss
1) Cut a piece of floss about 18 inches long. Wrap the excess floss around the
middle or index fingers of both of your hands, leaving 2-3 inches of working space
exposed.
2) Stretch the floss tightly between your fingers, and use your thumb and index
finger to guide the floss into place.
3) Hold the floss tightly between the thumb and forefinger of each hand. These
fingers control the floss and they should be no farther away than 1/2 inch apart.
Flossing the teeth
4) Pass the floss gently between the patient's teeth, using a sawing motion. Guide
the floss to the gumline. Do not force or snap the floss past the contact area. The
floss may cut or injure the tissue.
5) Curve the floss into a C shape against one tooth. Slide it gently into the space
between the gingiva and the tooth. Use both hands to move the floss up and down
on one side of the tooth.
6) Repeat these steps on each side of all teeth in both arches; including the
posterior surface of the last tooth in each quadrant.
7) As the floss becomes frayed or soiled, move a fresh area into the working
position.
Documentation
- date
- "provided flossing demonstration and instruction. Patient practiced technique and
did well.
- operator
Page 3 of 111
, Question 4
Using an instrument intraorally (EFDA)
Correct Answer
1) Seat and place the pt in the supine position.
2) Position yourself as the operator.
3) Adjust the dental light to illuminate the oral cavity.
4) Using a pen grasp, pick up the mirror with your nondominant hand and the
explorer with your dominant hand.
5) Instruct your pt to open his/her mouth and turn toward or away from you,
depending on the location of the mouth.
6) Establish a fulcrum close to the area that you will be exploring with your
instrument.
7) Adapt the explorer to the most posterior tooth in the upper right quadrant. A
well-adapted instrument prevents damage to the tooth and surrounding tissue.
8) Follow around the tooth with the mirror and the explorer, and examine all
surfaces through visualization and touch.
Page 4 of 111
AND ANSWERS
Question 1
Applying topical fluoride gel or foam (efda)
Correct Answer
Selecting the tray
1) Select a disposable tray that is of the appropriate size for the patient's mouth.
The tray must be long and sufficiently deep to cover all erupted teeth completely
without extending beyond the distal surface of the most posterior tooth. Trays are
available in sizes to fit primary, mixed, and adult dentition. If the patient's mouth
can accommodate it, you may use a double-arch tray. This saves time by treating
both arches at the same time. Remember, trays are discarded after a single use & if
you try a tray in the mouth but do not use it that tray must be discarded.
Preparing the teeth
2) Check to see whether calculus is present; if it is not, no preparation is required.
Fluoride diffuses easily through the acquired pellicle and bacterial plaque.
3) If calculus is present, request that the dentist or dental hygienist remove it. The
presence of plaque will not affect the uptake of fluoride.
Applying the topical fluoride
4) Seat the patient in an upright position and explain the procedure. Having the pt
upright prevents gel from going into the throat.
5) Instruct the pt not to swallow the fluoride.
6) Select the appropriate tray, and load it with a minimal amount of fluoride,
following guidelines according to the patient's age.
7) Dry the teeth using air from the air water syringe. For fluoride to be maximally
effective, the teeth must be dry when the fluoride is applied.
8) Insert the tray, and place cotton rolls between the arches. Ask the patient to bite
up and down gently on the cotton rolls, to squeeze the fluoride over all tooth
surfaces.
9) promptly place the saliva ejector, and tilt the patient's head forward.
10) Set the timer for the appropriate amount of time in accordance with the
manufacturer's instructions. During this time, do not leave the patient unattended.
11) On comp
Page 1 of 111
,Question 2
Applying fluoride varnish (EFDA)
Correct Answer
1) Obtain informed consent from the pt, or parent/legal guardian in the case of a
minor patient. Informed consent is a legal requirement for the provision of any
dental treatment.
2) Gather supplies and single-unit dose for application. Once you begin the
procedure, you will not be able to stop in your the middle to get something you
forgot.
3) Recline the pt to an ergonomically correct position for better access to the oral
cavity & be in a comfortable position.
4) Wipe the teeth to be varnished with the gauze or cotton roll & insert the saliva
ejector. The varnish is not moisture sensitive and can be applied in the presence of
saliva, the saliva ejector is for pt comfort only.
5) Using a cotton tip applicator, brush or syringe applicator, apply 0.3 to 0.5 ml of
varnish (unit dose) to clinical crown of teeth; application time is 1-3 minutes. Refer
to manufacturer's instructions for specific application time.
6) Dental floss may be used to draw the varnish inter-proximally.
7) allow pt to rinse after the procedure has been completed to remove any residual
taste.
8) Remind the pt to avoid eating hard foods, drinking hot or alcoholic beverages,
brushing, and flossing for at least 4-6 hours, or preferably until the next day after
the application. Drink through a straw for the first few hours after application.
Documentation
- date
- "applied 0.3 ml of 5% sodium fluoride varnish (insert brand name) on facial and
lingual surfaces of teeth #s 6-14, and 19-30.
- operator
Page 2 of 111
,Question 3
Assisting patient with dental floss (EFDA)
Correct Answer
Preparing the floss
1) Cut a piece of floss about 18 inches long. Wrap the excess floss around the
middle or index fingers of both of your hands, leaving 2-3 inches of working space
exposed.
2) Stretch the floss tightly between your fingers, and use your thumb and index
finger to guide the floss into place.
3) Hold the floss tightly between the thumb and forefinger of each hand. These
fingers control the floss and they should be no farther away than 1/2 inch apart.
Flossing the teeth
4) Pass the floss gently between the patient's teeth, using a sawing motion. Guide
the floss to the gumline. Do not force or snap the floss past the contact area. The
floss may cut or injure the tissue.
5) Curve the floss into a C shape against one tooth. Slide it gently into the space
between the gingiva and the tooth. Use both hands to move the floss up and down
on one side of the tooth.
6) Repeat these steps on each side of all teeth in both arches; including the
posterior surface of the last tooth in each quadrant.
7) As the floss becomes frayed or soiled, move a fresh area into the working
position.
Documentation
- date
- "provided flossing demonstration and instruction. Patient practiced technique and
did well.
- operator
Page 3 of 111
, Question 4
Using an instrument intraorally (EFDA)
Correct Answer
1) Seat and place the pt in the supine position.
2) Position yourself as the operator.
3) Adjust the dental light to illuminate the oral cavity.
4) Using a pen grasp, pick up the mirror with your nondominant hand and the
explorer with your dominant hand.
5) Instruct your pt to open his/her mouth and turn toward or away from you,
depending on the location of the mouth.
6) Establish a fulcrum close to the area that you will be exploring with your
instrument.
7) Adapt the explorer to the most posterior tooth in the upper right quadrant. A
well-adapted instrument prevents damage to the tooth and surrounding tissue.
8) Follow around the tooth with the mirror and the explorer, and examine all
surfaces through visualization and touch.
Page 4 of 111
