Exam (elaborations)
DH Theory One final
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Exam of 19 pages for the course Dental Hygiene Oxford College Semester I at Dental Hygiene Oxford College Semester I (DH Theory One)
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rIndirect illumination is the act of using the dental mirror to do which of the following?
Reflect light onto a tooth surface that is in a dark area of the mouth.
Direct light off the mirror surface and through the teeth.
View a tooth surface that cannot be seen directly.
Hold the client’s lips, cheek or tongue away from the tooth surface
Fill in the blank.
An extended lower shank is _____ mm longer than a standard lower shank
3
2
5
4
Assume your instrument set contains the following selection of area specific curets.
Which curet would be used on 25 mesial lingual?
Gracey 13/14
Gracey 1/2
Gracey 3/4
Gracey 11/12
Which of the following is an acceptable form of neutral body positioning?
Hunching the shoulders forward
Leaning forward slightly from the hips.
~
Bending the hand up or down repeatedly at the waist.
Forceful gripping with the fingers
Why should the dental hygienist take vital signs at every visit?
To prevent a medical emergency
To complete a comprehensive medical history
All of the above are correct
To obtain baseline readings
The dental hygienist is measuring probing depths. Where are the measurements taken
from?
Cementoenamel junction to the base of the pocket or sulcus.
Gingival margin to the periodontal ligament.
Gingival margin to the base of the pocket or sulcus.
Cementoenamel junction to the periodontal pocket.
r
,Which of the following situations would be appropriate for the use of the SG 13/14?
Removing subgingival calculus on the 42 facial.
Removing supragingival calculus on the lingual of mandibular anterior teeth
Removing interproximal calculus on the mesiobuccal surface of 13.
Removing subgingival calculus in a 4mm periodontal pocket at 37 distal.
While working on the facial surface of a 46, you notice that the client is in pain. You are
using a Universal Curet and are palm down, using a straght fulcrum finger and the
terminal shank is parallel to the surface you are working on. What could be the cause?
The client is sensitive due to your angulation.
The client is sensitive because you are using an oblique stroke direction
The client is sensitive as you should be using a sickle scaler.
The client is sensitive due to a shallow sulus depth on the facial surface.
Martin is going to debride the distal surface of a molar tooth. Which of the following
curets should he select for this task?
Gracey 11/12
EXD 11/12
Gracey 13/14
Gracey 1/2
The dental hygienist is organizing periodontal instrument kits into two classifications.
Which classification would sickle scalers be classified as? w
Measurement instruments.
Root debridement instruments
Assessment instruments.
Calculus removal instruments.
Which of the following are correct positioning techniques when working on the
mandibular arch?
Instrument handle is placed in front of the fist knuckle. W
Finger rest is on a facial surface.
Hand is in a palm down position.
Finger rest is on the maxillary arch.
The dental hygienist is having trouble detecting calculus deposit. What strategy could
improve tactile sensation?
-
Resting the index finger on the instrument shank.
Resting the middle finger on the instrument handle
Resting the middle finger on the instrument shank.
Resting the index finger on the instrument handle.
, Janelle wants to evaluate if she has removed a ledge of supra gingival calculus. What
·
should she do?
Use a probe to measure the periodontal pocket.
Use an explorer to feel for roughness.
-
Take a radiograph to see if it is still there
Ask the client if the area feels smoother.
The dental hygienist wants to scale a large, tenacious piece of calculus off of an
interproximal surface of a posterior tooth.
Which characteristic should he/she look for when choosing an instrument?
I
A simple shank.
A flexible shank
A rigid shank.
A straight shank.
The dental hygienist wants to choose the best instrument for the task at hand.
How should he/she proceed?
Evaluate the lower shank, working end and design number.
Evaluate the functional shank, working end and design number.
Evaluate the lower shank, design name and design number.
Evaluate the functional shank and lower shank
Jessica is having difficulty locating deep sub gingival calculus and has been practicing
with the pigtail explorer to improve her technique. What could be the problem?
Her stokes are too long.
She is using the wrong type of explorer L
Her lateral pressure is too light.
She is sitting in the wrong clock position
Helga is employing oblique strokes on a tooth surface. Which surface is she most likely
working on?
Lingual.
Occlusal.
Distal.
Mesial
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