Question 1

On tooth #19,a furcation probe can be inserted in which area?

Accepted Answer

A

Question 2

An explorer requires the use of __________to detect calculus and other tooth surface irregularities.

Accepted Answer

Explorers are dental instruments with a thin, flexible, pointed tip that is used to detect tooth surface irregularities such as calculus. The explorer tip is moved gently across the tooth surface while the operator applies pressure and feels for any irregularities with their sense of touch - this is known as tactile sensitivity. Direct and indirect vision are also essential in identifying dental issues, but neither of them specifically refers to the use of an explorer for detecting calculus. Horizontal strokes are a technique used in dental scaling to remove plaque and calculus but are not directly related to the use of an explorer.

Question 3

The reflective surface of mouth mirrors may be made of

Accepted Answer

Rhodium and metal oxides are materials used for the reflective surfaces of mouth mirrors due to their durability and quality of reflection. Amalgam is not used for this purpose.

Question 4

Which of the following explorers would be best used on a patient with 4- to 6-mm pockets in the maxillary anterior?

Accepted Answer

Area-specific explorers are designed to access specific areas of the periodontal pocket, making them ideal for pockets in the maxillary anterior region.

Question 5

Which of the following grasps for holding a periodontal probe is correct?

Accepted Answer

The modified pen grasp in the dominant hand with a fulcrum is the correct grasp for holding a periodontal probe. The modified pen grasp provides better control and precision, while the fulcrum provides stability and support for the hand during probing.

Question 6

Which of the following is NOT an assessment instrument?

Accepted Answer

The 15/16 Gracey is a type of curette used for scaling and root planing, not for assessment.

Question 7

Mirrors that magnify images are

Accepted Answer

Concave mirrors are mirrors that curve inward and magnify images. Front surface mirrors have the reflective coating on the front, creating a clear and accurate reflection without distortion. Reflective mirrors are simply mirrors that reflect light without magnifying or distorting the image. Plane mirrors reflect light without any magnification or distortion.

Question 8

Pressure applied to the probe should be

Accepted Answer

The correct pressure applied to a probe for periodontal examination, such as measuring pocket depths, is 10 to 20 grams. This amount of pressure is enough to provide accurate measurements without causing unnecessary discomfort or damage to the tissues.

Question 9

To view the maxillary right lingual,a hygienist will use

Accepted Answer

Indirect vision is used by dental professionals to view areas of the mouth that cannot be seen directly. The maxillary right lingual area is one such area, where a mirror is used to reflect the image to the operator's eyes.

Question 10

On tooth #3,a furcation probe should be inserted in which areas?

Accepted Answer

Tooth #3 has three roots, one buccal and two lingual. Therefore, a furcation probe should be inserted in three areas: mid-buccal, mesiolingual, and distolingual to assess the degree of furcation involvement. Option B only checks the mid-buccal and mid-lingual areas, which may miss detecting furcation involvement in the lingual root. Option C and D do not cover all roots of tooth #3.

Question 11

Assessment instruments include mirrors,probes,furcation probes,explorers,and sickle scalers.Assessment instruments are instruments that help the dental hygienist collect data that is used to guide and determine treatment needs.

Accepted Answer

The answer of Assessment instruments include mirrors,probes,furcation probes,explorers,and sickle scalers.Assessment...

Question 12

Which metal provides the reflective surface for mirrors?

Accepted Answer

Rhodium is a metal that is used to provide the reflective surface for mirrors. It is a hard, white metal that is resistant to corrosion and tarnishing. Rhodium is also a good reflector of light, which makes it ideal for use in mirrors.

Question 13

Explorers are used to do all of the following EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

Explorers are dental instruments used primarily for detection purposes, such as detecting calculus, examining tooth anatomy, and evaluating the margins of restorations. They are not designed to remove calculus; that task is performed by scalers and curettes.

Question 14

The walking stroke for the periodontal probe should be

Accepted Answer

The correct walking stroke for a periodontal probe is 1 to 2 mm vertical and 1 mm horizontal. This technique ensures accurate measurement of pocket depths around the tooth in a methodical manner.

Question 15

Which of the following instruments would you use to measure clinical attachment loss?

Accepted Answer

Clinical attachment loss is measured using a periodontal probe, which allows the clinician to measure the depth of the periodontal pocket and determine the amount of attachment loss that has occurred. Shepherd's hook explorer, Naber's probe, and pigtail explorer are not instruments specifically designed for measuring clinical attachment loss.

Question 16

When should an explorer be used?

Accepted Answer

Explorers are dental instruments used throughout the scaling process: before scaling to detect calculus and other irregularities, during scaling to guide the removal of deposits, and after scaling to ensure all calculus has been removed and the tooth surface is smooth.

Question 17

_______________is used to check for decay in the anterior teeth.

Accepted Answer

Transillumination uses a bright light source (such as a dental curing light or a transilluminator) to shine light through the tooth from the lingual or buccal surfaces, allowing the dentist to detect any decay or cavities present. This technique is particularly useful for detecting early decay in the anterior teeth. Direct and indirect vision and illumination can also be valuable for detecting decay, but transillumination is the most specific technique for this purpose.

Question 18

Which of the following grasps for holding a mirror is correct?

Accepted Answer

A modified pen grasp in the nondominant hand with a fulcrum is the correct grasp for holding a mirror during dental procedures. This allows for stability and control of the mirror while providing a clear view of the oral cavity, without interfering with the work of the dominant hand.

Question 19

Mirror fogging is a frustrating but common problem when using the mouth mirror.The first and easiest way to reduce fogging is to run the face of the mirror over the buccal mucosa,warming and coating the mirror with saliva to prevent fogging in any circumstance,including xerostomia.

Accepted Answer

The first statement is true as warming and coating the mirror with saliva is an effective way to prevent fogging. However, the second statement is false as xerostomia, or dry mouth, can potentially make fogging worse because there is less saliva to coat the mirror.

Question 20

Which of the following is NOT appropriate when using an explorer?

Accepted Answer

Using a fulcrum is necessary in order to provide stability and control when using an explorer. Without a fulcrum, the explorer can slip and cause injury to the patient. Choices A, C, and D are all appropriate techniques when using an explorer.

Quiz 9: Assessment Instruments