Are there long-term clinical data to support the use of self-adhesive resin cements?

THE DENTAL ADVISOR recently completed a four-year recall of over 1500 restorations cemented with 3M ESPE RelyX Unicem Self-Adhesive Universal Resin Cement (3M ESPE). At four-year recall, less than 1% of the restorations require recementation, less than 5% of the restorations had evidence of microleakage, and less than 2% of the patients reported occasional temperature sensitivity.