title: Two-step provisional technique for onlay preparations.
abstract: Compared to full crown temporization, direct autocured resin provisional technique for intracoronal onlay preparations is more complicated and less predictable. Clinical concerns include possible pulpal irritation, extra chair time for contouring proximal and marginal excess, and a critically short time constraint to remove the curing resin in the "rubbery stage" to avoid distortion or "locking" into the preparation. A two-step direct technique using two new light-cured provisional resins addresses these problems. First, a light-cured, elastic resin is condensed against the internal preparation walls and confined within a wedged metal matrix band. Then, using a clear template matrix, the elastic foundation is overlaid with a strong and esthetic light-cured provisional resin.
authors.affiliation: University of Texas Health Science Center, San Antonio.
authors.forename: J W
authors.initials: JW
authors.lastname: Nicholson
authors.forename: D C
authors.initials: DC
authors.lastname: Chan
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003794:Dental Restoration, Temporary / Q000379:methods*; D006801:Humans; D007284:Inlays / Q000379:methods*; D008434:Matrix Bands; D008689:Methacrylates / Q000737:chemistry*; D011109:Polymethacrylic Acids / Q000737:chemistry*; D011140:Polyurethanes / Q000737:chemistry*; D012117:Resins, Synthetic
chemical_list: D000180:Acrylic Resins; C072654:Fermit; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D012117:Resins, Synthetic; C060386:Triad resin; C029824:urethane dimethacrylate luting resin