Fixed Exam 1 - Soft Tissue Management

Question 1

Various techniques applied to displace these
tissues from the proposed operating site; ensures best properties of restorative
material and longevity of the restoration

Answer 1

Gingival management

Question 2

What type of gingival displacement?

Displaces the tissue so that adequate bulk of the impression material can be interfaced with the prepared tooth

Answer 2

Lateral

Question 3

What type of gingival displacement?

Exposes the uncut portion of the tooth apical
to the finish line. (May cause trauma of the gingival tissues followed by recession)

Answer 3

Apical/vertical

Question 4

What are the 3 cord designs?

Answer 4

Twisted
Knitted
Braided

Question 5

What diameter of cord?

Used in anterior teeth, where thin firm tissue is present

Answer 5

Small

Question 6

What diameter of cord?

Indicated where greater bulk is encountered, like in posterior teeth

Answer 6

Medium

Question 7

What diameter of cord?

Should be used with caution bc it can produce soft tissue trauma

Answer 7

Large

Question 8

Smooth, non serrated circular cord packers are best for what type of cord?

Answer 8

Twisted

Question 9

Serrated circular cord packers are best for what type of cord?

Answer 9

Braided

Question 10

When is the single cord technique used?

Answer 10

Thin tissue

Question 11

When is the double cord technique used?

Answer 11

Prep below margin

Question 12

When is the infusion technique of gingival displacement used?

Answer 12

To control hemorrhage

Question 13

Which cord technique?

1. Tooth preparation complete and cervical
   margins are at their pre-determined intra-crevicular position
2. Length of gingival retraction cord is selected to match the anatomy of the sulcus. The (#0 Ultrapak) knitted cord that fits the sulcus should be used
3. The cord is soaked in the medicament of choice (eg, hemodent, ViscoStat Clear, Astringedent)
4. Excess medicament is blotted from the soaked cord with a sterile cotton sponge. The cord is carefully packed into the sulcus in a
   counterclockwise direction
5. Make sure entire cervical margin can clearly be visualized and that there is no soft tissue impediment to easy injection of the impression material to capture all of the cervical margin detail. If there is excess soft tissue blocking easy access, it can be displaced with an additional small section of cord or excised with an electro-surgery unit of soft tissue laser
6. Wait 8-10 minutes before removing the cord and making the impression. The cord needs time to effect adequate lateral
   displacement, and the medicament needs time to create hemostasis and crevicular fluid control.
7. Before removing the cord, the cord should be soaked in water to allow it to be easily removed from the sulcus. Removal of the
   cord when dry is traumatic and tears the inner epithelial lining and initiates hemorrhage
8. The tooth preparation should be gently dried and the impression made

Answer 13

Single cord technique

Question 14

How long do you leave the single cord in the sulcus?

Answer 14

8-10 mins