| 摘要 |
A retraction cord for retracting gingival tissue is pre-impregnated with a chemical agent for chemically retracting gingival tissue and/or a hemostatic agent for arresting bleeding. A wetting agent is further applied to the cord to ensure product efficacy and shelf stability. The retracting agent may be an astringent water soluble organic salt such as aluminum potassium sulfate, aluminum sulfate, aluminum chloride, or ferric sulfate-or an inorganic salt of organic vascoconstrictors such as epinephrine, pseudoephedrine, or VISINE. The wetting agent is preferably a non-ionic surface active surfactant such as SILWET L-7607 at a concentration of 0.05% by volume.
|
