title: Effect of fiber-premixed indirect resin composite substructure on fracture resistance of MOD composite inlays adhered with two different adhesive resin cements.
abstract: This study evaluated the effect of a fiber-premixed indirect resin composite (FMC) substructure on the fracture resistance of mesialocclusal-distal (MOD) indirect composite restorations adhered to extracted human upper premolars. The teeth received a standardized MOD cavity preparation, and indirect composite inlays were fabricated with or without using the FMC. Inlays were cemented into the cavity preparations using either Super-Bond C&B or Panavia F2.0. A total of 28 specimens, namely seven specimens for four groups, were thus fabricated. Failure load and failure energy were determined after thermocycling (4-60 degrees C for 5,000 cycles). In terms of failure load, no significant differences were found among the four groups. In terms of failure energy, FMC substructure exerted a significantly favorable effect on Super-Bond C&B-bonded group but a negative one on Panavia F2.0-bonded group. In conclusion, the failure energy of the group using FMC substructure and which was adhered using Super-Bond C&B was significantly higher than the other groups.
authors.affiliation: Fixed Prosthetic Clinic, Kagoshima University Medical and Dental Hospital, Kagoshima 890-8544, Japan. minami@dentb.hal.kagoshima-u.ac.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Minami
authors.forename: Shiro
authors.initials: S
authors.lastname: Suzuki
authors.forename: Sadaaki
authors.initials: S
authors.lastname: Murahara
authors.forename: Yasukazu
authors.initials: Y
authors.lastname: Saimi
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Minesaki
authors.forename: Takuo
authors.initials: T
authors.lastname: Tanaka
mesh_terms: D001641:Bicuspid; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding / Q000379:methods*; D003737:Dental Cavity Preparation; D019232:Dental Restoration Failure; D003799:Dental Stress Analysis; D005898:Glass; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D008437:Maxilla; D008689:Methacrylates / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*
chemical_list: D003188:Composite Resins; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; D019279:Resin Cements; C009753:fiberglass; C020946:triethylene glycol dimethacrylate; D011092:Polyethylene Glycols