title: Comparison of Flexural Strength of Resin Cements After Storing in Different Media and Bleaching Agents.
abstract: The aim of this study was to determine the effects of different storage media and bleaching treatments on the flexural strength of two resin cements (Panavia and BisCem). One hundred rectangular-shaped specimens were prepared with two resin cements and were stored in five media types (n = 10): distilled water (DW), lactic acid (LA), sodium hydroxide (NH), in-office bleaching (OB) and home bleaching (HB). There was significant interaction between the solutions and cements (p < 0.05). The lowest three-point flexural strength was found in sodium hydroxide for both cements (p < 0.05). Both cements exhibited significant increase in flexural strength following home and in-office bleaching (except Panavia in OB) (p < 0.05) compared with immersion in distilled water. Panavia recorded significantly higher flexural strength compared with BisCem in all media (p < 0.002), with the exception of in-office bleaching.
authors.forename: Farideh
authors.initials: F
authors.lastname: Geramipanah
authors.forename: Susan Mir Mohammad
authors.initials: SM
authors.lastname: Rezaei
authors.forename: Maryam
authors.initials: M
authors.lastname: Jafary
authors.forename: Leyla
authors.initials: L
authors.lastname: Sadighpour
mesh_terms: D000077463:Carbamide Peroxide; D003188:Composite Resins / Q000737:chemistry; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D006813:Humidity; D006861:Hydrogen Peroxide / Q000737:chemistry; D019344:Lactic Acid / Q000737:chemistry; D055115:Light-Curing of Dental Adhesives / Q000295:instrumentation; D008422:Materials Testing; D010545:Peroxides / Q000737:chemistry; D018583:Pliability; D058105:Polymerization; D019279:Resin Cements / Q000737:chemistry*; D012972:Sodium Hydroxide / Q000737:chemistry; D013314:Stress, Mechanical; D013696:Temperature; D013997:Time Factors; D058205:Tooth Bleaching Agents / Q000737:chemistry*; D014508:Urea / Q000031:analogs & derivatives / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: C542562:BisCem cement; D003188:Composite Resins; C438843:Panavia-Fluoro; D010545:Peroxides; D019279:Resin Cements; D058205:Tooth Bleaching Agents; D014867:Water; D000077463:Carbamide Peroxide; D019344:Lactic Acid; D012972:Sodium Hydroxide; D014508:Urea; D006861:Hydrogen Peroxide