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Prepackaged collections of the devices and supplies (i.e., either custom or standard kits) needed for physically displacing the tissue and leaving the field dry (i.e., gingival retraction) using a gingival retraction paste. Items in these kits usually include a gingival retraction product that consists of a green-colored paste provided in glass cartridges; they may also include a metal dispenser gun used to express the paste through a disposable metal dispensing tip into the gingival sulcus, and an instruction manual and/or video. The kits are frequently supplied in supporting trays (i.e., procedure trays) consisting of a flat-bottomed receptacle with a border around the periphery supporting all the instruments and supplies needed for the procedure; the trays are usually covered or wrapped. Gingival retraction procedure kits and trays are intended for use during procedures for tissue retraction prior to impression making or prosthesis cementation. They are used in dental offices.
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