​​Read the Tissue Management Story

Astringedent® X

12.7% Iron Solution
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Product Details

An aqueous, 12.7% iron solution, Astringedent X contains equivalent ferric sulfate and ferric subsulfate with a pH of ~1.0. Not as tissue-kind as our other hemostatic agents, it is still less acidic than competitive iron subsulfate solutions.

Note: Diluted Astringedent X does not equal ViscoStat® or Astringedent®.
  • A must-have for every office
  • Ideal for difficult cases of heavy capillary bleeding
  • Our most powerful hemostatic
  • Designed for use with the Metal Dento-Infusor® tip



Indications for Use

Astringedent® X

For Difficult Bleeding

Use Astringedent X to arrest various degrees of oral capillary bleeding or sulcular fluids during dental treatment and oral surgery including: fixed prosthodontics, restorative-operative, and periodontal treatment.


Astringedent® X

Profound Hemostasis in Even the Most Challenging Cases

Astringedent X
Astringedent X

​Astringedent X and the Dento-Infusor® tip facilitate profound hemostasis.

Technical Details

For Difficult Bleeding

​Use Astringedent X in situations requiring more profound hemostasis, or when the attainment of quality hemostasis may be more challenging i.e., in cases of difficult-to-stop, problem bleeding.

IndiSpense Syringe

​Verify flow of all syringes prior to applying intraorally. If resistance is met, replace tip and recheck. To avoid cross contamination, do not re-use tips.

Gluten Free and Kosher Certified

​Ultradent products are gluten free and kosher certified, so they fit in with the lifestyles and beliefs of patients from any background.

Sold Directly to Licensed Dental Professionals Only

​Ultradent is committed to supporting the dental community. Astringedent X is only sold directly to licensed dental professionals.

Unmatched Quality

​The name Ultradent is synonymous with quality. All of our research and development is done in-house. So is our manufacturing and quality control. This allows us to guide and oversee the entire process—from the time an Ultradent innovation is conceived to the time it’s created and packaged for shipping. We have met the strictest standards, and our facility is ISO 9001 certified. This ensures every product performs exactly as it’s supposed to for you and for your patients.


Tissue Management Technique Step by Step

See a list of products used
  1. 1

    ​Burnish the hemostatic agents firmly against the sulcus until bleeding stops. (No more coagulum forms.)
  2. 2

    ​A blunt, bent cannula with padded "scrub brush" enables infusing and cleaning in the cut sulcus.
  3. 3

    ​Apply firm air/water spray to remove residual coagulum and test tissue for quality, profound hemostasis. If bleeding continues, repeat infusion technique.
  4. 4

    ​After complete hemostasis has been reached, excellent retraction is achieved through the use of Ultrapak® knitted cord.


  • "I have been using Astringedent X now daily. I absolutely love it. The tissue retracts nicely, the cleanup is easy (no mess at all), the patients are handling the taste fine, and it has made my job so much easier. Astringedent X washes away well, leaving little to no residue. It keeps the tissue dry and tight long enough for me to complete the procedure...I have been using the "X" for everything."

    Dr. Kristina Wiley
  • "I use Astringedent X exclusively. During my nine and a half years of practice I have had to redo an impression only 4 times. And to clarify that further, two were on the same person due to gagging reflexes. Now I know I don't crown as much as most, but I have done plenty enough to know how well this works in comparison to other products."

    Dr. Jaleena Jessop
  • "Astringedent X is a game changing product without rival that enables me to confidently stop tissue bleeding quickly. It receives my highest endorsement for a product that not only delivers what it promises but exceeded my expectations."

    Dr. Bruce LeBlanc, DDS
  • "Astringedent X is a product that should be in every office. Having the ability to create a controlled work environment with no bleeding aids in consistently achieving nice bonded restorations and good sharp crown and bridge impressions. In the event of problematic bleeding with oral surgery procedures, Astringedent X is excellent when combined with pressure to stop stubborn bleed sites. I view it as cheap insurance to ensure you have a good day at the office."

    Dr. Craig Janssen – Green Bay, WI
  • "With other hemostatic products it seems like you are always fighting a losing battle. Astringedent X stops ANY bleeding...end of story."

    Dr. Adam DeLee – Hot Springs, AR


  • Can Astringedent X be used with epinephrine preparations?

    ​No. If Astringedent X is used with epinephrine, there is a reaction that can cause the gingival tissue to temporarily turn a dark blue or black color.

  • Is there any problem when a polyether material is used following hemostasis with Astringedent X?

    ​Polyether materials are negatively affected by residual ferric sulfate on the preparation. Ensure you wash the area completely to avoid this effect.

  • Can Astringedent X affect the recession of gums in the anterior segment because of reduced blood supply?

    ​The physical effect of Astringedent X is to create a coagulum plug that will seal off any open vessel. When applied as per the instructions, it is not present long enough to have an irreversible vasoconstrictor effect that would reduce circulation to the tissues.