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49 Cards in this Set

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Corbin has walked a periodontal probe across the mesial surface until it touched the contact area. What should Corbin do next?

Slant the probe slightly and gently press downward to assess beneath the contact area

The purpose of establishing the proper degree of angulation with the instrument against the tooth, is that if the angulation is incorrect. ______.

All choices are correct

Insertion is the action of moving the working end of an instrument beneath the gingival margin and into the sulcus or pocket. For insertion, the instrument face should be positioned as far away from the tooth surface as possible.

The first statement is true; the second statement is false

Calculus removal strokes are activated by pushing the working-end toward the junctional epithelium (base of the pocket). Before beginning a calculus removal stroke, the hand is stabilized by applying inward pressure against the handle with the middle finger and thumb.

Both statements are false

Octavia is probing the facial site of a mandibular molar. The measurements in this site range from 2 to 4.5 mm. What reading should Octavia record on their periodontal chart for the facial site?

5

In a healthy sulcus, the junctional epithelium is attached to?

enamel

The hand pivot is a movement used during instrumentation to ________________.

maintain adaptation of the working end of the instrument as it moves around the tooth

The tissue of the free gingiva fits closely around the tooth but it is not directly attached to it. The free gingiva can be stretched away from the tooth surface with a periodontal probe.

Both statements are true

The pointed tip of a sickle scaler __________.

Provides good access to proximal surfaces apical to contact areas

Which of the following are design characteristics of an area-specific curet?




-Face is perpendicular to the lower shank


-Face is offset at 70 degree to lower shank


-One working cutting edge per working end


-Two working cutting edges per working end

Face is offset at 70 degree to lower shank


One working cutting edge per working end

Malcom is having difficulty removing a subgingival calculus deposit on the line angle region of the molar tooth with a universal curet. Which of the following techniques should be effective in removing the calculus deposit

Use a horizontal stroke

" The relationship between the face of a calculus removal instrument and the tooth surface to which its applied"

Angulation

Which technique should be used to remove a very large supragingival calculus deposit

Remove the deposit in sections

Gertrude is recording probing depths. She is measuring the distance in millimeters from the _________________.

Gingival margin to the base of the sulcus

The triangular cross section of a sickle scaler limits use to above the gingival margin. The pointed tip and back could cause tissue trauma.

Both statements are false

Which of the following stroke directions is most commonly used with the anterior sickle scaler while instrumenting the interproximals of manibular anterior teeth?

Vertical

Wolfgang is planning to remove small size subgingival calculus deposits from the facial surface of the mandibular right 1st molar. During assessment, Wolfgang noted the following information about this tooth; the gingival margin is at the CEJ and the probing depth is 7mm. Which of the following instruments would be the most appropriate for calculus removal?

Area-specific curet

Blair wants to adapt the working end of an area-specific curet to a molar tooth. Which of the following design characteristics must she be aware of to obtain correct adaptation of the area-specific curet?

Face is tilted in relationship to lower shank

Shino wants to select the correct working end of a double ended universal curet for an anterior tooth. What visual clue should she look for to select the correct end?

Lower shank goes across the tooth surface

The probe should be removed from the sulcus after each measurement and reinserted for the next measurement. The probe is used with walking strokes that are only about 1mm apart

The first statment is false; the second is true

Sela is employing oblique calculus removal strokes with a sickle scaler. Because she is using oblique strokes, Sela is most likely instrumenting which of the following tooth surfaces?

Facial surface of a molar

Instruments with flexible shanks are designed to _______________.

Enhance the tactile sensitivity for the clinician

Gaylord wants to remove a medium-size calculus deposit located approximately 5mm below the gingival margin. Gaylord's efforts will be most successful if he selects a universal curet with which of the following design characteristics

long lower shank length

Hilda wants to select the correct working end of a double-ended sickle scaler for a posterior sextant. What visual clue should she look for to select the correct working end?

Lower shank should be parallel to the distal surface

A calibrated periodontal probe is marked in millimeter intervals. Each millimeter increment (from 1mm to 12mm ) is indicated on the working end of all calibrated probes.

The first statement is true; the second statement is false.

Martin is going to debride the distal surface of a molar tooth. Which of the following curets should he select for this task.

Gracey 13/14

Design Characteristics of a universal curet?

Face is perpendicular to the lower shank


Two cutting edges per working end.

Which of the following correctly describes the character of the instrumentation strokes used for calculus removal with a universal curet?

Short biting stroke

For successful instrumentation, correct angulation of the working end must be maintained throughout the instrumentation stroke. Incorrect angulation can result in a burnished calculus deposit.

Both statements are true

Gracey curets have a working cutting edge that is self angulated. Universal curets have level cutting edges that must be tilted for correct angulation.

Both statements are false

Which of the following statements are true

The face-to-tooth surface angulation for calculus removal is between 60 and 80 degrees.

Area specific curets are self angulated. Area specific curets have rounded toes and straight cutting edges.

The first statement is true; the second statement is false.

Beluah has inserted a periodontal probe to the base of the sulcus. What tissue forms the base of a clinically normal gingival sulcus.

Junctional Epithelium

Thelma is using a gracey 13 on the mesial surface of a mandibular molar. Which is likely to occur from her instrumentation of the mesial surface?

Ineffective calcus removal


Bleeding

The fingers of the dominant hand should be relaxed between calculus removal strokes. Lateral pressure should be exerted immediately prior to beginning a calculus removal stroke.

Both statements are true

Marta is examining the working end of a periodontal instrument. The instrument has a rounded toe, rounded back, and one cutting edge that is lower than the other cutting edge. Which design classification is this instrumentation?

Area-specific curet

An instrument that is flipped during patient treatment so the clinician can use the other end is a ____________.

Double-ended instrument

Flying off the tooth at the end of a stroke is caused by_________.

Not using enough pressure on the fulcrum finger.

How can you determine the correct working end of a universal curet on a posterior tooth?

All of the choices are correct

Positioning the first one to two millimeters of the working end's lateral surface in contact with the tooth is a definition for which of the following?

Adaptation

Which part of the working end of a sickle scaler is used for calculus removal

Tip third of cutting edge

Which of the following correctly describes the character of the instrumentation strokes used with a calculus removal stroke.

Biting strokes, short in length

All of the following are examples of universal curets except

Gracey 1/2

Axel has determined that the sulcus around the canine is clinically normal. To make this determination, Axel would need to obtain a measurement of how many millimeters in depth?

Less than 3.5

When using a periodontal probe, it is necessary to take measurements in only three places on the facial site of a molar tooth. Only three measurements are needed because the base of the sulcus is uniform across the entire facial site

Both statements are false

Deprecious has inserted a probe to the base of a clinically normal sulcus. Which of the following tissues does the probe touch at the base of the sulcus?

Junctional Epithelium

Dequisha wants to remove a medium size subgingival calculus deposit from the lingual surface of a mandibular molar. Which of the following would not be recommended in the situation.

Tilting the instrument handle down to gain a better view

A very large supragingival calculus deposit probably cannot be removed as single piece; it will need to be removed in sections. In removing a large supragingival calculus deposit, it is helpful to adapt the middle third of the working end so that you are using the strongest section of the working end.

The first statment is true; the second statement is false.

If your fulcrum finger is 'in the line of fire" it will be

A and C are correct.