The Dental Advisor

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3M ESPE RelyX Unicem 2 Automix Self-Adhesive Resin Cement

  • The award of Editors' Choice signifies the most unique and significant product in the issue. The editors review each product and clinical evaluation article scheduled for an issue and then select the issue's Editors' Choice.
  • Preferred Products are selected by Dr.Bunek and the staff of THE DENTAL ADVISOR. These products are featured each year in the January-February issue of THE DENTAL ADVISOR.


Consultants' Comments

  • “My favorite features were ease of use, consistent mixing, and less assistant time.”
  • “Easy to dispense and clean up.”
  • “Variety of tips is helpful.”
  • “Convenient storage - no refrigeration required.”
  • “Little or no sensitivity during the cementation procedure.”
  • “Hard to clean up after final setting.”


3M ESPE RelyX™ Unicem 2 Automix Self-Adhesive Resin Cement is a dual-cured, self-adhesive resin cement. It is indicated for final cementing of all-ceramic, composite, or metal inlays, onlays, crowns and bridges; two- to three-unit Maryland bridges and three-unit inlay/onlay bridges; final cementation of posts and screws; and final cementation of all-ceramic, composite, or metal restorations on implant abutments. 3M ESPE RelyX Unicem 2 Automix  Cement is available in automix syringes in three shades: A2 Universal, A3 Opaque and Translucent. 3M ESPE RelyX Unicem 2 Automix Cement is based on the same chemistry as RelyX Unicem Self-Adhesive Universal Resin Cement. The improved formulation offers even more convenience due to its auto-mix delivery system. The kit includes one 8.5 g syringe (translucent, A2 Universal or A3 Opaque), 15 standard mixing tips, 5 wide mixing tips, 5 endo tips, manufacturer's instructions, and a Technique Card. 3M ESPE RelyX Unicem 2 Automix Cement was evaluated by 35 consultants in 1170 uses. It received a 96% rating.

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Product Features

3M ESPE RelyX Unicem 2 Automix Cement is a versatile cement that is easy to dispense and use. Consultants appreciated the many advantages offered by room temperature storage. The dual-barrel syringe accepts short mixing tips that minimize waste and dispense the cement directly into the restoration. Angled intraoral tips or endo tips may be attached to the mixer for placement of the cement into the prepared tooth. These tips are especially useful for cementation of inlays/onlays and posts. The shades provided are acceptable for most clinical situations. Compared to the original RelyX Unicem packaged in capsules, this new material is less viscous, allowing easier seating of restorations. A very brief (1-2 second) tack cure from the facial and lingual surfaces allows for easy clean-up of excess cement. Several consultants commented on the lack of sensitivity observed with this cement. Seventy-four percent of consultants reported that 3M ESPE RelyX Unicem 2 Automix Cement was better than their current self-adhesive resin cement, whereas 26% reported it was equivalent. Ninety-four percent would switch to and recommend 3M ESPE RelyX Unicem 2 Automix Cement.

Clinical Tip

  • Make sure to clean up the cement after initial tack cure; otherwise, it is very hard to clean.

  • More About: 3M ESPE, Cement - Self-adhesive Resin

    Editors' Note:

    Editors’ Note: 3M ESPE RelyX Unciem 2 Clicker Self-Adhesive Resin Cement will be launched in the US in May 2011. It is the new generation of RelyX Unicem now also in the Clicker delivery for dentists that prefer to handmix or to save waste in automix syringe tips or simply prefer to buy more applications in one delivery piece. The indications for use, as well as the shades available are the same as RelyX Unicem 2 Automix Cement.


    Featured in:
    May 2011 Volume 28, No. 04

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