3M™ RelyX™ Unicem Aplicap™
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Dual cure self-adhesive universal resin cement. Eliminates the need for etching*, priming, and bonding steps. Provides high physical strength, low linear expansion, and excellent marginal integrity.
Aplicap™ capsule delivery is ideal for inlays, onlays, crowns and posts. The hygienic unidose (295mg) capsule provides a consistent mix with triturator. 2'' 00" working time. Requires an Aplicap™ activator (orange base) and applier (orange button). Elongation tips available for virtually void-free cementation of posts.
*Except for 2- or 3-unit Maryland bridges and 3-unit inlay/onlay bridges, which require selective etching to increase surface area for bonding.
10-Year Clinical Performance
3M RelyX Unicem Self-Adhesive Resin Cement is a dual-cured resin cement. It is self-adhesive, requiring no separate etching, priming or bonding. The cement is filled 72% by weight and contains fluoride. It is indicated for the cementation of all-ceramic restorations, PFM and metal restorations, crowns, bridges, inlays, onlays, implant abutments and endodontic posts, and is also recommended for cementing CAD/CAM restorations.
Clinical Evaluation protocol
More than 6,000 restorations have been cemented with RelyX Unicem over the past 10 years. The restorations included ceramic inlays, onlays, bridges, PFM crowns, zirconia crowns, posts, and CAD/CAM restorations. 1,311 anterior and posterior restorations were available for 10-year recall over a 6-month period.
Categories evaluated at recall included post-operative sensitivity, marginal discoloration, and retention. The majority of the posterior restorations were crowns, whereas 10% were onlays, and 2% were bridges.
Post-operative Sensitivity: Since its introduction, RelyX Unicem has had very few reported instances of post-operative sensitivity. Post-operative sensitivity was reported for 1.1% of the seated restorations, and usually occurred shortly after cementation. In most cases, the sensitivity subsided within weeks after cementing the restoration.
Marginal Discoloration: 92% of the restorations recalled showed no marginal discoloration. Discoloration, exhibited by graying at the margin of ceramic restorations, was observed in 8% of the restorations: 4.8% of the restorations exhibited slight discoloration, 2.2% exhibited moderate discoloration, while 1% exhibited severe discoloration and required replacement. The rate of marginal discoloration of restorations cemented with RelyX Unicem is comparable to restorations cemented with 5th- and 6th-generation bonding agents and corresponding light- or dual-cured resin cements.
Debonding: 49 (3.7%) of the recalled restorations debonded over the 10-year evaluation period. In 90% of the debonds, most of the cement was in the restoration and not on the prepared tooth. It was also noted that about 20% of the prepared teeth exhibited graying or blackening of the tooth surface. This type of discoloration is commonly seen underneath restorations cemented with adhesive resin cements. The discoloration could be due to bacteria.
RelyX Unicem has proven to be a reliable, self-adhesive resin cement over the 10-year recall period. This product received a 98% clinical rating.
- “Using RelyX Unicem, I am confident in getting good retention.”
- “We use RelyX Unicem more often than any other cement in the clinic.”
- “In 10 years of using RelyX Unicem, it really has proven itself.”
- “What’s not to like about RelyX Unicem?”