How long should the cord be left in the sulcus?
In most cases, the knitted loops of the cord provide optimal retraction after 3–8 minutes.
What length of cord should I use?
The length of cord will depend on the circumference of the preparation. Ultrapak’s bottle features a handy ruler on the side to help make sure you get the right length.
How will I know if the retraction is adequate?
Retraction is adequate when the margins of the gingiva are pulled away from the preparation and the cord can be removed without the gingiva hemorrhaging. To help prevent the onset of bleeding upon removal, soak the cord in an astringent like Astringedent or ViscoStat.
Are there times when I shouldn’t use cord impregnated with epinephrine?
Yes. Cord impregnated with epinephrine should not be used on patients with cardiovascular disease, hyperthyroidism, hypertension, diabetes, arteriosclerosis, or on patients taking tricyclic antidepressants or having sensitivity or hypersensitivity to epinephrine. In addition, elderly individuals, pregnant women, and children under 66 lbs. may be at greater risk of developing adverse reactions after epinephrine administration.Do not use epinephrine cord with ferric sulfate hemostatics like ViscoStat or Astringedent, as a temporary blue/black precipitate will occur.
What is the benefit of the knitted cord over braided cord?
Braided cords are more rigid than knitted cords, which can cause an issue when packing into the sulcus. With rigid braided cords, when one portion of the cord is packed into the sulcus, another portion of the cord is typically raised. Knitted cords are more flexible and pack easily into the sulcus.