Deck 24: Hand-Activated Instruments

Question 1

A dental hygienist is assessing the periodontium around tooth 3.Four millimeters of visible recession is present on the facial surface of the tooth.The probing depth in the same area is 1 mm.What is the clinical attachment level of this tooth?

A) 3 mm
B) 4 mm
C) 5 mm
D) 6 mm

Answer 1

5 mm

Question 2

Which of the following instruments is best designed for assessment of furcation involvement?

A) PSR screening probe
B) Nabers probe
C) Williams probe
D) Marquis color-coded probe

Answer 2

Nabers probe

Question 3

When one sharpens scaling instruments,why is the last stroke always downward from the face of the instrument?

A) To reduce the possibility of a wire edge on the face of the blade
B) To increase sharpness
C) To ensure that the instrument blade is not beveled
D) None of the above

Answer 3

To reduce the possibility of a wire edge on the face of the blade

Question 4

In the modified pen grasp,where is the second finger positioned on the instrument?

A) Side of the finger rests on the handle
B) Tip (pad of the finger)on the instrument shank
C) Side of the finger on the instrument shank
D) Tip (pad of the finger)on the instrument handle

Question 5

Which of the following instruments is the best choice for moderate supragingival calculus removal?

A) Area-specific curet
B) Universal curet
C) Sickle scaler
D) Chisel scaler

Question 6

Which type of explorer is recommended for assessment of interproximal areas under the contact,for supragingival detection of caries on all crown surfaces and around restorations,and for caries and calculus detection in shallow sulci,but is not recommend for detecting calculus in deep periodontal pockets or for deep subgingival calculus detection?

A) Pigtail
B) ODU 11/12
C) Shepherd's hook
D) No.17 explorers

Question 7

When inserting a curet into a periodontal pocket,what is the ideal angle between the cutting edge of the blade of the instrument and the tooth?

A) 100 to 110 degrees
B) 45 to 90 degrees
C) 35 to 40 degrees
D) 0 to 10 degrees

Question 8

The shape of the shank will influence the use of the instrument.An instrument with a ridged shank is for the removal of light subgingival calculus.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement in false,but the second statement is true.

Question 9

Which of the following instruments is the best choice for light to moderate subgingival calculus removal?

A) Area-specific curet
B) Universal curet
C) Sickle scaler
D) Chisel scaler

Question 10

What is the recommended pressure when a periodontal probe is used?

A) 1 to 2 g
B) 10 to 20 g
C) 100 to 200 g
D) 1 to 2 mg

Question 11

A dental hygienist records a periodontal probe reading of 6-6-6 on the facial surface of tooth 8 and a clinical attachment level of 3-3-3.What would a competent dental hygienist conclude from these assessment data?

A) Normal readings
B) Gingival pocket
C) Periodontal pocket
D) Not enough information

Question 12

What degree of angulation should be established between the tooth surface and the cutting edge of the instrument blade when calculus is removed?

A) 0 to 10 degrees
B) 35 to 45 degrees
C) 60 to 80 degrees
D) 100 to 110 degrees

Question 13

The distance between the gingival margin and the junctional epithelium at the base of the sulcus or periodontal pocket is known as which of the following?

A) Mucogingival junction
B) Probing depth
C) Relative attachment level
D) Infrabony pocket

Question 14

Which of the following instrument designs is best used for accessing a deep periodontal pocket on the proximal surface of a maxillary permanent first molar?

A) Angled shank with complex bends
B) Angled shank with a single bend
C) Straight shank with complex bends
D) Straight shank with a single bend

Question 15

All of the following are uses of the mouth mirror except which one?

A) Indirect vision
B) Retraction to the tongue and tissues
C) Transillumination
D) Tongue depression to assess the oral pharynx

Question 16

The dental hygienist is scaling a sextant,teeth 28 through 31.The areas have generalized 5- to 6-mm pockets with light subgingival calculus and bleeding on probing.Which of the following would be the best instrument to use to debride the pockets in this area?

A) Sickle scaler
B) Universal scaler
C) Area-specific curet
D) Chisel scaler

Question 17

A firm grasp is used when calculus is removed.A light grasp is used during exploration to find calculus.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement in false,but the second statement is true.

Question 18

An area-specific curet has two straight flat blades that are not easily adapted to a curved tooth or root surface.The rounded smooth back of the working end of the area-specific curet aids in the placement of the instrument without trauma to the tissues.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.

Question 19

A dental hygienist is scaling the posterior,mandibular right quadrant.Suddenly the tip of the working end of the instrument (13/14 area-specific curet)breaks.Which of the following is not an appropriate part of the initial tip-retrieval procedure?

A) Reinstrument the area with another curet.
B) Dry the area with compressed air.
C) Inform the client about the breakage.
D) Use a magnetic-tip instrument to retrieve the broken tip,such as a Periotriever.

Question 20

What is the most effective method for identifying supragingival calculus?

A) Use of compressed air and direct observation
B) Use of disclosing tablets
C) Use of a periodontal explorer
D) Use of a periodontal probe

Question 21

The dental instrument material that does not need sharpening is stainless steel with titanium nitrate.Instruments made with this material are contraindicated for root debridement,fine scaling,and root planing nontenacious deposits.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true,but the second statement is false.
D) The first statement is false,but the second statement is true.

Question 22

The surface texture of the instrument handle can be knurled or smooth.The amount and type of texture helps provide a firm grasp on the instrument and prevents slipping in a wet environment.

A) Both statements are true.
B) The first statement is true,but the second one is false.
C) Both statement are false.
D) The first statement is false,but the second one is true.

Question 23

Instruments with short shanks are used in restricted areas,for example,posterior teeth,whereas instruments with long shanks are used in unrestricted areas of the mouth.

A) Both statements are true.
B) The first statement is true,but the second one is false.
C) Both statement are false.
D) The first statement is false,but the second one is true.

Question 24

Root planing a root surface that is normal and healthy can contribute to which of the following?

A) The prevention of clinical attachment loss
B) The prevention of gingival recession
C) The prevention of bone loss
D) The development of gingival recession

Question 25

All of the following are true about an instrument handle except which one?

A) Instrument handles can be narrow and solid,or wide and hollow.
B) Instruments with narrow handles are lighter in weight.
C) Instruments handles can be made with silicone grasps.
D) Instruments with hollow handles are more efficient at transmitting tactile sensitivity.

Question 26

Match the working ends of dental instruments.
Pointed toe and pointed back

A)Sickle scaler
B)Dental explorer
C)Curet or curette
D)Hoe scaler
E)File scaler

Question 27

Match the working ends of dental instruments.
Rounded toe and rounded back

A)Sickle scaler
B)Dental explorer
C)Curet or curette
D)Hoe scaler
E)File scaler

Question 28

Shanks with thin diameters are considered rigid in nature and therefore are capable of removing heavy calculus deposits.In contrast,shanks with thick diameters are considered flexible for the removal of light calculus.

A) Both statements are true.
B) The first statement is true,but the second one is false.
C) Both statements are false.
D) The first statement is false,but the second one is true.

Question 29

All of the following are true about instrument shanks except which one?

A) Instrument shanks vary in diameter,curvature,and length.
B) Shanks with many deviations are used in treatment areas with restricted access such as posterior areas of the mouth.
C) Short functional shanks are used to reach tooth surfaces that are hard to access.
D) The length of the shank is measured from the first bend and away from the handles to the beginning of the working end.

Question 30

All of the following are valuable uses of the perioscope except which one?

A) Visualize deep narrow pocket areas.
B) Educate clients about their disease.
C) Magnify the interior walls of periodontal pockets.
D) Deliver chemotherapeutic agents.

Question 31

Match the working ends of dental instruments.
Fine,wirelike working end with a sharp point

A)Sickle scaler
B)Dental explorer
C)Curet or curette
D)Hoe scaler
E)File scaler

Question 32

Which of the following scaling instruments is designed for subgingival calculus removal?

A) Sickle
B) Curet
C) Chisel
D) Hoe

Question 33

Match the working ends of dental instruments.
Triangular in cross-section

A)Sickle scaler
B)Dental explorer
C)Curet or curette
D)Hoe scaler
E)File scaler

Question 34

Which of the following treatment instruments are best designed for debriding very narrow and deep periodontal pockets?

A) Rigid and extra rigid Gracey curets
B) Mini-Five Gracey curets
C) Micro Mini-Five curets
D) After-Five Gracey curets

Question 35

Match the working ends of dental instruments.
Excellent for crushing large tenacious calculus deposits

A)Sickle scaler
B)Dental explorer
C)Curet or curette
D)Hoe scaler
E)File scaler

Question 36

All of the following are uses of the dental mirror except which one?

A) Indirect vision
B) Retention
C) Illumination
D) Transillumination

Question 37

All of the following treatment instruments are specifically designed for root debridement in a furcation except which one?

A) Tine file
B) Diamond-tip curets
C) Quetin furcation curets
D) Diamond-Tec file scalers