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3M Astringent Retraction Capsule

Consultants’ Comments

  • “The best paste system I have ever used.”
  • “An excellent hemostatic agent.”
  • “Love the narrow diameter of the tip.”


3M Astringent Retraction Capsule is an astringent retraction paste supplied in a single-use capsule. The capsule is compatible with common composite dispensers. The extra-fine, soft-edge tip has an orientation ring that corresponds in size and position to a periodontal probe. The retraction paste contains 15% aluminum chloride and can be used alone or in conjunction with retraction cord for all indications requiring temporary deflection of marginal gingival. Its use requires a clean and dry sulcus area (e.g., when taking impressions, cementing temporary and permanent restorations, and when preparing Class II and Class V restorations). 3M Astringent Retraction Capsule contains 7.5 g of paste. Each capsule is individually sealed in a foil blister pouch, and should remain in the blister until ready for immediate use. The product is sold in a refill pack of 25 capsules or a value pack of 100 capsules. The 3M Astringent Retraction Capsule was evaluated by 30 consultants in 612 uses. This retraction paste received a 91% clinical rating.

Product Features

3M Astringent Retraction Capsule has excellent hemostatic properties and produces a clean, dry sulcus. The narrow tip is a highly rated feature. While the primary use is for tissue retraction before crown and bridge impressions, it is also useful for moisture control when seating ceramic restorations. The blue color is easy to see in the mouth and aids in ensuring complete removal from the sulcus. Sixty percent would switch to 3M Astringent Retraction Capsule and 80% would recommend it to a colleague.

Clinical Tips

  • This material should not be used in patients with periodontal disease, open furcations or exposed bone.
  • Store capsules in their foil pouches until the time of use.
  • Orient the tip perpendicular in the sulcus and express the paste slowly.
  • If residue remains on the tooth/gingiva after rinsing, scrub with a micro-tipped applicator brush to remove it.