Old quiz questions

Question 1

Providing replacement for missing and/or hopeless teeth would be an example of which level of preventive care

Answer 1

Tertiary prevention

Question 2

T/F: Caries are the most prevalent and preventable INFECTIOUS disease in the US

Answer 2

True

Question 3

What is 0.12% chlorohexidine gluconate oral rinse (ie peridex) used to treat?

Answer 3

gram positive bacteria
gram negative bacteria
fungal infections
(It is broad spectrum)

Question 4

Which duct produces primary mucous saliva

Answer 4

Sublingual saliva

Question 4

The final salivary product is __ to plasma

Answer 4

hypotonic

Question 4

The overwhelming majority of stimulated saliva comes from which gland?

Answer 4

Parotid gland

Question 5

Which buffer system is the key player in stimulated saliva ?

Answer 5

carbonic acid/ bicarbonate

Question 6

What is normal unstimulated salivary flow rate?

Answer 6

0.5 mL/min

Question 7

What is the name of the duct associated with the parotid gland

Answer 7

stendons duct

Question 8

What is the critical pH of enamel

Answer 8

5.5

Question 9

T/F: Slatherins help to keep the tooth healthy by promoting saturation of calcium salts within the enamel

Answer 9

True

Question 10

T/F: Dental caries is a dynamic process and the end result does NOT always lead to cavitation

Answer 10

True

Question 11

What can be said about a white spot lesion which is shiny, smooth, and has no tactile roughness

Answer 11

The lesion is arrested

Question 12

Which are the FIRST bacteria to attach to the pellicle

Answer 12

Gram positive aerobic cocci

Question 13

What gland is responsible for the vast majority of serous saliva

Answer 13

Parotid gland

Question 14

Which of the following is true regarding the anticariogenic properties of xylitol
- Bacteria are unable to produce lactic acid in it presence
- increases salivary flow, thus enhancing salivary buffering capacity
- decreases overall bacteria levels in the oral microbiome
- Stabilization of oral pH

Answer 14

All of the above are true

Question 15

While providing your patient with tailored oral hygiene instructions, which of the following instructions will you demonstrate
1. Hold the toothbrush at a 90 degree angle against the tooth surface
2. Use gentle circular motions
3. Use a hard bristled toothbrush for most effective biofilm removal
4. demonstrate creating a c-shape with the floss to hug the curvature of each tooth

Answer 15

2
4

Question 16

What is true of MATURE biofilm formation

Answer 16

-An anaerobic environment
-production of lactic acid
-presence of facultative anaerobes
-presence of strep mutans and lactobacilli

Question 17

How long does it take for early biofilm to colonize

Answer 17

30-60 min

Question 18

Which of the following are true regarding enamel pellicle ?
1. Protein rich film covering enamel surface
2. Forms immediately after tooth is cleaned
3. Protects the tooth
4. Allows bacteria to attach to tooth surface

Answer 18

All of the above

Question 19

Which of the following medications would be the first option to consider if a patient experiences a fungal infection as a result of dry mouth

Answer 19

Nystatin

Question 20

T/F: Xerostomia is a term used to describe severe dry mouth as a result of the natural process of aging

Answer 20

False

Question 21

Which of the following are clinical findings associated with xerostomia
1. Cobblestone tongue
2. Loss of papillae on the tongue
3. White patches indicative of fungal infections
4. rampant decay

Answer 21

All of the above

Question 22

Which of the following could result from ill-fitting removable appliances
1. Epulus Fissuratum
2. Fungal Infection
3. Bacterial infection

Answer 22

All of the above

Question 23

Which restorative material is best to use on an elderly patient with multiple lesions of root caries

Answer 23

Glass ionomer

Question 24

Which of the following is true regarding acinar cells of the salivon 1. Sodium and chloride are reabsorbed 2. Sodium-potassium pumps are embedded in the apical membrane 3. sodium-potassium pumps transport 3 sodium ions into the cell, and 2 potassium ions out of the cell 4. Transport can occur through both transcellular and paracellular routes

Answer 24

4

Question 25

Which of the following would be expected with an increase in PSNS output to the salivary glands 1. Stimulation of acinar cell secretion 2. Relaxation of the myoepithelial cells 3. vasoconstriction of blood vessels surrounding the salivary glands 4. a decrease in salivary flow rates

Answer 25

1

Question 26

Which of the following is a disease indicator which automatically classifies the patient as "high risk" 1. A highly cariogenic diet 2. Limited fluoride 3. A filling placed two years ago 4. Recession which exposes root surfaces

Answer 26

3

Question 27

What is the primary substrate associated with caries formation

Answer 27

Sucrose

Question 28

What is the role of glucan in biofilm formation

Answer 28

Creates a sticky environment needed for bacteria adhesion

Question 29

For a high caries risk patient, how frequently should a bitewing be taken

Answer 29

Every 6 months

Question 30

What is the appropriate at home care for a high caries risk patient

Answer 30

1.1% NaF toothpaste and in-office varnish

Question 31

Sealants are recommended for which of the following 1. moderate caries risk 2. high caries risk 3. deep pits and fissures

Answer 31

All of the above

Question 32

Which of the following is NOT recommended for conventional caries detection methods 1. visual inspection 2. tactile inspection 3. radiographic detection 4. exploration with sharp explorer and ample pressure

Answer 32

4

Question 33

Molted enamel with brown staining and pitting is __

Answer 33

fluorosis / hypomineralization

Question 34

When does fluorosis happen

Answer 34

During mineralization stage in which ameloblasts are laying down enamel

Question 35

What is secreted by both salivary acinar and ductal cells

Answer 35

potassium

Question 36

The final salivary product is __ because __

Answer 36

hypotonic Ductal cells are attached by tight junctions, preventing the reabsorption of water

Question 37

Which of the following are true regarding systemic acquisition of fluoride? 1. only beneficial to pre-erupted teeth 2. Is most beneficial during mineralization stage of tooth development 3. amount and duration of exposure will determine benefits

Answer 37

All of the above

Question 38

Fluorosis is a form of

Answer 38

Hypomineralization

Question 39

Which is true of fluorosis 1. occurs during maturation stage of tooth development 2. excess fluoride inhibits the ameloblasts from functioning properly 3. Can occur pre and post eruption 4. Can be caused by excess systemic and topical fluoride

Answer 39

2

Question 40

Which of the following are mechanism of action of fluoride 1. Inhibits bacterial metabolism 2. Strengthens enamel 3. prevents sensitivity 4. remineralization of tooth structure

Answer 40

All of the above

Question 41

What is the current recommended amount of fluoride in public water sources

Answer 41

0.7 ppm

Question 42

T/F: Community Water Fluoridation is the single most effective and efficient means for preventing dental caries in children and adults regardless of race or income

Answer 42

True

Question 43

The most common OTC dentifrices (toothpastes) have this amount of fluoride in them

Answer 43

1000 ppm

Question 44

Which variety of fluoride is recommended for patients with gingivitis or periodontitis

Answer 44

Stannous Fluoride

Question 45

T/F: Sealants are recommended on molars with deep pits and fissures regardless of their caries risk status

Answer 45

True

Question 46

Which of the following is true regarding an occlusal sealant 1. It should be opaque in color 2. It should be light cured 3. A poorly placed sealant with leaky margins is worse than no sealant at all

Answer 46

All of the above are true