title: Influence of temporary cement remnant and surface cleaning method on bond strength to dentin of a composite luting system.
abstract: The aim of the current study was to evaluate the influence of polycarboxylate temporary cement remaining on the dentin surface on the bond strength of a composite luting system. An acrylic resin plate was luted to bovine dentin with a polycarboxylate temporary cement (HY-Bond Temporary Cement Hard, HYB). The temporary cement was not used for the control groups. After removing the temporary cement with an excavator, dentin specimens were divided into five groups; 1) no subsequent treatment, 2) cleaning with a rotational brush (RTB), 3) cleaning with a rotational brush and non-fluoridated flour of pumice, 4) sweeping with an air scaler, and 5) treated with a sonic toothbrush. A silane-treated ceramic disk (IPS Empress) was bonded to each dentin specimen with a composite luting system (Panavia F). Shear testing results showed that the RTB groups exhibited the highest bond strength regardless of the use of temporary cement (P < 0.05). The use of a rotational brush with water coolant is recommended to achieve ideal bond strength between the Panavia F luting system and dentin to which HYB temporary cement was primarily applied.
authors.affiliation: Department of Crown and Bridge Prosthodontics, Nihon University School of Dentistry, Tokyo, Japan.
authors.forename: Katsuhito
authors.initials: K
authors.lastname: Kanakuri
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Kawamoto
authors.forename: Hideo
authors.initials: H
authors.lastname: Matsumura
mesh_terms: D000538:Aluminum Silicates; D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D001840:Dental Bonding; D017005:Dental Debonding / Q000379:methods*; D003776:Dental Porcelain; D003794:Dental Restoration, Temporary / Q000009:adverse effects*; D012534:Dental Scaling / Q000379:methods; D003799:Dental Stress Analysis; D003804:Dentin / Q000187:drug effects; D005899:Glass Ionomer Cements; D008855:Microscopy, Electron, Scanning; D011076:Polycarboxylate Cement / Q000009:adverse effects; D019279:Resin Cements; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013499:Surface Properties; D014099:Toothbrushing / Q000379:methods
chemical_list: D000538:Aluminum Silicates; D005899:Glass Ionomer Cements; C075815:IPS-Empress ceramic; C438843:Panavia-Fluoro; D011076:Polycarboxylate Cement; D019279:Resin Cements; C062270:Shofu Hybond; D003776:Dental Porcelain