Soft Tissue Management Flashcards
The various techniques applied in order to displace these tissues from the proposed operating site
Gingival Management
This ensures best properties of restorative material and longevity of the restoration
Gingival Management
Displaces the tissue so that adequate bulk of the impression material can be interfaced with the prepared tooth
Lateral gingival displacement
Exposes the uncut portion of the tooth apical to the finish line (may cause trauma of the gingival tissues followed by recession)
Apical/ Vertical gingival displacement
3 types of retraction cord designs
Twisted
Knitted
Braided (ULSD)
Small vs medium vs large diameter retraction cords
Small: used in anterior teeth, where thin firm tissue is present
Medium: indicated where greater bulk is encountered (posterior teeth)
Large: should be used with caution as can produce soft tissue trauma
Cord packers:
Smooth, non serrated circular heads are best for __
Serrated circular heads are best for __
twisted cords
braided cords
Single cord technique
thin tissue biotype gingiva
Double cord technique
preparation is below the gingival margin
Infusion technique of gingival displacement
needed to control hemorrhage
Single-cord gingival displacement technique:
1. Tooth preparation complete and __ are at their pre-determined intra-crevicular position
cervical margins
Single-cord gingival displacement technique:
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)
Single-cord gingival displacement technique:
3. The cord is soaked in the __
medicament of choice (hemodent, Viscostat clear, astringedent)
Single-cord gingival displacement technique:
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
Start by tacking down the first piece (usually easier if you start at the __)
Line angle
Press down with the cord packer on the cord __ to the cord and hold with a firm but gentle pressure
perpendicular
Slowly work your way around the tooth. Each time you press on a new section of cord down, the force applied must either be __ or __
vertical or slightly towards the previously packed cord
Single-cord gingival displacement technique:
5. After the cord is in place, the tooth prep is carefully inspected to ascertain that the __ 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 __
entire cervical margin can clearly be visualized
an additional small section of cord or excised with an electro-surgery unit of soft tissue laser
Single-cord gingival displacement technique:
6. Wait __ minutes before removing the cord and making the impression. The cord needs time to effect adequate __ displacement, and the medicament need time to create hemostasis and crevicular fluid control
8-10 minutes
lateral
Single-cord gingival displacement technique:
7. Before removing the cord, the cord should be __ to allow it to be easily removed from the sulcus. Removal of the cord when dry is traumatic and tears the __ and initiates hemorrhage
soaked in water
inner epithelial lining
Single-cord gingival displacement technique:
8. The tooth prep should be __ and the impression made
gently dried
Single-cord gingival displacement technique:
9. Wet the __ before removing it from the gingival sulcus
cord
Minimum and max time for double cord technique
Minimum 4-5 minutes
Max 15 minutes
