EFDA OHIO BOARD PREP HOTTEL
BOOK CH3 ISOLATION EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025
cotton rolls may be placed here for retraction and dryness during a short
procedure - CORRECT-ANSWERSvestibule or floor of the mouth adjacent to
the operating site
which of the following is not a disadvantage of using cotton rolls for isolation:
a. they become saturated and must be changed frequently
b. during changing procedures, the risk of contaminating the field with
moisture in increased
c. ease of speed of application
d. cotton rolls offer limited retraction of the lips, cheek, and tongue and no
gingival retraction
e. there is no protection against the patient aspirating foreign materials or
chemicals - CORRECT-ANSWERSease of speed of application
name 6 advantages of using the rubber dam - CORRECT-ANSWERS1- dry
clean and visible field of operation
2- protection of the patient and operator
3- economic factors
, 4- improved properties of dental materials
5- retraction of soft tissues
6- application of medicaments
a general guideline is to isolate at least how many teeth distally, and how
many teeth mesially to the tooth being restored? - CORRECT-ANSWERS1
tooth distal and two teeth mesial to the tooth being restored
A rough interproximal area may tear the rubber dam and should be... -
CORRECT-ANSWERSsmoothed/ eliminated prior to placement
what are the three steps taken BEFORE the actual placement of the rubber
dam? - CORRECT-ANSWERS1- explain the procedure, floss and prepare the
contact areas
2- select the appropriate size/type of clamp
3- attach floss to the clamp, preferably through the forcep hole
the clamp is made up of what parts? (how many jaws, how many bows?) -
CORRECT-ANSWERS2 jaws and 1 bow
The wingless/winged clamp allows the rubber dam to be attached to the
clamp prior to placing it. - CORRECT-ANSWERSwinged clamp
BOOK CH3 ISOLATION EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025
cotton rolls may be placed here for retraction and dryness during a short
procedure - CORRECT-ANSWERSvestibule or floor of the mouth adjacent to
the operating site
which of the following is not a disadvantage of using cotton rolls for isolation:
a. they become saturated and must be changed frequently
b. during changing procedures, the risk of contaminating the field with
moisture in increased
c. ease of speed of application
d. cotton rolls offer limited retraction of the lips, cheek, and tongue and no
gingival retraction
e. there is no protection against the patient aspirating foreign materials or
chemicals - CORRECT-ANSWERSease of speed of application
name 6 advantages of using the rubber dam - CORRECT-ANSWERS1- dry
clean and visible field of operation
2- protection of the patient and operator
3- economic factors
, 4- improved properties of dental materials
5- retraction of soft tissues
6- application of medicaments
a general guideline is to isolate at least how many teeth distally, and how
many teeth mesially to the tooth being restored? - CORRECT-ANSWERS1
tooth distal and two teeth mesial to the tooth being restored
A rough interproximal area may tear the rubber dam and should be... -
CORRECT-ANSWERSsmoothed/ eliminated prior to placement
what are the three steps taken BEFORE the actual placement of the rubber
dam? - CORRECT-ANSWERS1- explain the procedure, floss and prepare the
contact areas
2- select the appropriate size/type of clamp
3- attach floss to the clamp, preferably through the forcep hole
the clamp is made up of what parts? (how many jaws, how many bows?) -
CORRECT-ANSWERS2 jaws and 1 bow
The wingless/winged clamp allows the rubber dam to be attached to the
clamp prior to placing it. - CORRECT-ANSWERSwinged clamp
