CHAPTER 2 & 3 EFDA HOTTEL BOOK
EXAM WITH CORRECT QUESTIONS
AND ANSWERS 2025
In what position would an operator be if they are right handed? - CORRECT-ANSWERS8:00-12:00
position
In what position should the patient be if working on maxillary teeth? - CORRECT-ANSWERSSupine
How many inches should the operator be from the patients face? - CORRECT-ANSWERS12-14
what is a finger rest called? - CORRECT-ANSWERSfulcrum
disadvantages of using cotton rolls? - CORRECT-ANSWERS1. become saturated
2.risk of contaminating with moisture
3. limited retraction
4. no protection against aspirating
, Advantages of rubber dam - CORRECT-ANSWERS1. Area is kept dry
2. protects pt from debris
3. economic on time
4. improved properties of dental materials
5. retraction of soft tissues
6. protects soft tissues from irritants
Disadvantages of using a rubber dam - CORRECT-ANSWERSTime consuming
what is a ligature - CORRECT-ANSWERSdental floss or tape attached to the bow of the dental dam
clamp
how many teeth should be isolated when placing a rubber dam? - CORRECT-ANSWERSOne tooth
distal and two teeth mesial
what is the purpose of a winged clamp - CORRECT-ANSWERSallows for the clamp to be placed on
the dam prior to placement
EXAM WITH CORRECT QUESTIONS
AND ANSWERS 2025
In what position would an operator be if they are right handed? - CORRECT-ANSWERS8:00-12:00
position
In what position should the patient be if working on maxillary teeth? - CORRECT-ANSWERSSupine
How many inches should the operator be from the patients face? - CORRECT-ANSWERS12-14
what is a finger rest called? - CORRECT-ANSWERSfulcrum
disadvantages of using cotton rolls? - CORRECT-ANSWERS1. become saturated
2.risk of contaminating with moisture
3. limited retraction
4. no protection against aspirating
, Advantages of rubber dam - CORRECT-ANSWERS1. Area is kept dry
2. protects pt from debris
3. economic on time
4. improved properties of dental materials
5. retraction of soft tissues
6. protects soft tissues from irritants
Disadvantages of using a rubber dam - CORRECT-ANSWERSTime consuming
what is a ligature - CORRECT-ANSWERSdental floss or tape attached to the bow of the dental dam
clamp
how many teeth should be isolated when placing a rubber dam? - CORRECT-ANSWERSOne tooth
distal and two teeth mesial
what is the purpose of a winged clamp - CORRECT-ANSWERSallows for the clamp to be placed on
the dam prior to placement