Clinical DH

Question 1

Visible airborne particles of blood and/or saliva; drop quickly to the floor, countertops, etc are called?

Answer 1

Spatter

Question 2

Which disinfectant can discolor some surfaces yellow?

Answer 2

Iodophors

Question 3

Which disinfectant is corrosive to metals and has a strong odor?

Answer 3

Chlorine based compounds

Question 4

Which level of surface disinfectant is used in dental offices?

Answer 4

Intermediate

Question 5

Name the method of sterilization that requires min. 273 degrees F for 20 minutes with a pressure of 25 psi?

Answer 5

Chemical

Question 6

Name the method of sterilization that requires 340 for 1 hour or 320 for 2 hours

Answer 6

Dry heat

Question 7

Name the method of sterilization that is 250 with 15 or 20 lbs. per square inch for 30 minutes?

Answer 7

Steam

Question 8

Name the nutrient source for supra gingival calculus?

Answer 8

Saliva

Question 9

Name the nutrient source for sub gingival calculus

Answer 9

Crevicular fluid and inflammatory exudate

Question 10

Early evidence of bone loss; instrument can enter the depression leading to the furcation is classified as which furcation?

Answer 10

Class I

Question 11

Moderate bone loss, instrument can enter furcation, but cannot pass between the roots is classified as which type of furcation?

Answer 11

Class II

Question 12

Severe bone loss; instrument can pass between roots is classified as which furcation?

Answer 12

Class III

Question 13

Same as Class III, but with evidence of recession is which furcation classification?

Answer 13

Class IV

Question 14

At what pH level does enamel demineralize?

Answer 14

4.5 to 5.5

Question 15

What is the critical pH level for cementum to demineralize?

Answer 15

6.0 to 6.7

Question 16

Fluoride interferes with______________?

Answer 16

Bacterial metabolism

Question 17

Name the 3 compounds used to fluoridate water:

Answer 17

1. Sodium fluoride
2. Sodium silicofluoride
3. Hydrofluorosilic acid

Question 18

name the tooth rushing method-Angle bristles 45 toward the apex at gingival 1/3, placing bristles into the sulcus. Good for perio patients

Answer 18

Bass

Question 19

Name the toothbrushing method-

Angle bristles 45 toward the apex with 1/2 of bristles placed on tooth, the other half on the gingiva.

Answer 19

Stillmans

Question 20

Name the aid used for-
Open embrasures
Exposed class IV furcations
Orthodontic appliances, fixed prostheses, and dental implants

Answer 20

Interdental brush

Question 21

Name the aid used for:
Open proximal spaces
Hard to access areas, such as 3rd molars and crowded teeth
Fixed prostheses such as under fixed partial dentures, pin tics, and orthodontic appliances

Answer 21

Tufted brush

Question 22

Name the aid used for:
Exposed class IV furcations
Interdental cleaning
Gingival margins above orthodontic appliances

Answer 22

Toothpick holder

Question 23

Name the aid used in interdental areas with exposed root surfaces (recession)

Answer 23

Wedge stimulator

Question 24

Name the aid used for:

Under Pontic of bridges or orthodontic appliances

Answer 24

Tufted floss

Question 25

Which aid disrupts loosely adherent plaque and flushes debris and food particles around orthodontic appliances?

Answer 25

Oral irrigator

Question 26

Name the 3 anti hypersensitivity ingredients in dentrifices

Answer 26

1. Potassium nitrate
2. Strontium chloride
3. Sodium citrate

Question 27

Do you apply pressure with a pulp vitality test?

Answer 27

No

Question 28

Invisible airborne particles; remain in the air for awhile are called?

Answer 28

Aerosol