title: Validity of using bovine teeth as a substitute for human counterparts in adhesive tests.
abstract: Shear and tensile bond strengths of 40 human and 40 bovine teeth were compared. Teeth were randomly assigned to group I, which received light-cured composite resin, or group II, which received light-cured resin-reinforced glass ionomer cement. The groups were subdivided for shear and tensile bond strength tests, which were conducted on a universal testing machine installed to a computer transducer. Statistical analysis revealed a highly significant difference between shear and tensile bond strengths of human and bovine enamel; however, regression prediction equations support the use of bovine teeth as a reliable substitute to human counterparts in bonding studies of orthodontic adhesion.
authors.affiliation: Department of Orthodontics, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon.
authors.forename: F
authors.initials: F
authors.lastname: Saleh
authors.forename: N
authors.initials: N
authors.lastname: Taymour
mesh_terms: D000818:Animals; D002417:Cattle; D003188:Composite Resins / Q000592:standards*; D001840:Dental Bonding / Q000379:methods / Q000592:standards; D003743:Dental Enamel / Q000033:anatomy & histology / Q000187:drug effects / Q000502:physiology; D005899:Glass Ionomer Cements / Q000592:standards*; D006801:Humans; D007180:Incisor; D008334:Mandible; D008422:Materials Testing / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D023421:Models, Animal; D011237:Predictive Value of Tests; D011897:Random Allocation; D012044:Regression Analysis; D033081:Shear Strength; D018709:Statistics, Nonparametric; D013499:Surface Properties; D013718:Tensile Strength; D014070:Tooth / Q000033:anatomy & histology / Q000187:drug effects / Q000502:physiology; D014159:Transducers
chemical_list: D003188:Composite Resins; D005899:Glass Ionomer Cements