What is cord technique?

A common technique used when taking fixed prosthetic impressions is packing a cord. Packing a cord will help stop the bleeding and assist in achieving good retraction in the sulcus before inserting impression material. Dentists often pack a single cord as part of their impression taking technique.

When is gingival retraction cord placed and removed?

Retraction cords are cords, that are placed in the gingival sulcus so that dentists can get a good impression of the teeth and the surrounding tissues. When dentists prepare the teeth for a fixed restoration such as a crown, bridge or even veneers, they have to remove a part of the dental tissue.

What is the most common method to obtain gingival retraction?

Mechanical retraction The most common method in gingival retraction which is fast, simple and inexpensive is cord packing that can be used separately or in combination with hemostatic agents in two techniques: single cord or dual cord [14].

Which instrument movements pack the retraction cord into the sulcus?

RETRACTION CORD PACKER Darby Retraction Cord Packers are used to pack gingival retraction cord into the sulcus. The cord packers with round, non-serrated, or smooth ends facilitate atraumatic cord placement while serrated cord packers work best with braided cords.

What is gingival retraction cord soaked in?

Thereafter, in a clinical trial, they examined the microcirculatory responses of the gingival margin after subgingival insertion and removal of retraction cords pre-soaked in solutions containing saline, AlCl3, Fe2(SO4)3 or epinephrine.

Why is it necessary to retract the gingiva of the prepared tooth before taking the impression?

The main purpose of G-Cuff is to support the soft tissue that surrounds the implant abutment. So it retracts the gingiva to allow the impression material or digital intra-oral scanner recording the implant abutment, so the final restoration can be accomplished within two visits.

Why do we have to do gingival retraction prior to final impression procedures?

Gingival retraction techniques to expose crown preparation margins have been well documented in the literature. During impression procedures, effective gingival retraction is required to capture accurate preparation margins and the tooth structure apical to them.

What equipment and methods can you use to protect and retract the patient’s cheek and tongue during treatment?

The most common method used in dental practices involves retracting the oral soft tissue with a dental mirror or a dental suction and placing cotton rolls to absorb the saliva. In many cases, however, the auxiliary aids used are too small for fully retracting the oral soft tissue.

What is the purpose of gingival retraction?

The goal of gingival retraction is to atraumatically displace gingival tissues to allow access for impression material to record the finish line and provide sufficient thickness of gingival sulcus so that the impression does not tear off during removal. Numerous advanced materials are available for gingival retraction.