title: Shear bond strength of deciduous and permanent bovine enamel.
abstract: OBJECTIVE
  The use of bovine teeth as a substitute for human enamel has been proposed for dental studies. The aim of this study was to determine the shear bond strength and Adhesive Remnant Index (ARI) of deciduous and permanent bovine teeth.
  
  
  METHODS
  Twenty deciduous and 20 permanent extracted bovine teeth were embedded in resin blocks. Stainless steel conventional orthodontic brackets were bonded to the teeth using an orthodontic adhesive. All samples were tested in shear mode on a testing machine. ARI scores were then recorded. Statistical analysis was performed to determine significant differences in bond strength and ARI scores.
  
  
  RESULTS
  The bond strength of permanent bovine teeth was significantly higher (p = 0.0010) than that of the deciduous teeth. ARI scores showed no significant differences (p = 0.74).
  
  
  CONCLUSIONS
  Deciduous teeth show lower shear bond strength than permanent teeth.
authors: Department of Orthodontics, University of Pavia, Italy.
authors: Maria Francesca
authors: MF
authors: Sfondrini
authors: Andrea
authors: A
authors: Scribante
authors: Vittorio
authors: V
authors: Cacciafesta
authors: Paola
authors: P
authors: Gandini
mesh_terms: D000818:Animals; D002417:Cattle; D001840:Dental Bonding; D003743:Dental Enamel; D003799:Dental Stress Analysis; D019229:Dentition, Permanent; D016910:Orthodontic Brackets; D016062:Porosity; D019279:Resin Cements; D033081:Shear Strength; D014094:Tooth, Deciduous
chemical_list: D019279:Resin Cements; C477790:Transbond XT