title: Tensile Strength of Resin Cements Used with Base Metals in a Simulating Passive Cementation Technique for Implant-Supported Prostheses.
abstract: The aim of this study was to analyze the tensile strength of two different resin cements used in passive cementation technique for implant-supported prosthesis. Ninety-six plastic cylinders were waxed in standardized forms, cast in commercially pure titanium, nickel-chromium and nickel-chromium-titanium alloys. Specimens were cemented on titanium cylinders using self-adhesive resin cement or conventional dual-cured resin cement. Specimens were divided in 12 groups (n=8) in accordance to metal, cement and ageing process. Specimens were immersed in distilled water at 37 °C for 24 h and half of them was thermocycled for 5,000 cycles. Specimens were submitted to bond strength test in a universal test machine EMIC-DL2000 at 5 mm/min speed. Statistical analysis evidenced higher tensile strength for self-adhesive resin cement than conventional dual-cured resin cement, whatever the used metal. Self-adhesive resin cement presented higher tensile strength compared to conventional dual-cured resin cement. In conclusion, metal type and ageing process did not influence the tensile strength results.
authors.affiliation: Dental School of Sobral, UFCE - Universidade Federal do Ceará, Sobral, CE, Brazil.
authors.forename: Hilmo Barreto Leite
authors.initials: HB
authors.lastname: Falcão
authors.affiliation: Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Ricardo Faria
authors.initials: RF
authors.lastname: Ribeiro
authors.affiliation: Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Raphael Freitas de
authors.initials: RF
authors.lastname: Souza
authors.affiliation: Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Macedo
authors.affiliation: Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, USP - Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
authors.forename: Rossana Pereira de
authors.initials: RP
authors.lastname: Almeida
mesh_terms: D000497:Alloys; D002484:Cementation / Q000379:methods*; D015921:Dental Implants; D019279:Resin Cements; D013718:Tensile Strength
chemical_list: D000497:Alloys; D015921:Dental Implants; D019279:Resin Cements