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Comparison of resin push-out strength to root dentin of bovine- and human-teeth
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal de Santa Maria (UFSM)
  • 0970-9290
  • 1998-359X
Aim : To compare the push-out strength of bovine- and human-root dentin and, thus, evaluate the suitability of bovine-root dentin to substitute human-root dentin for bond strength testing. Materials and Methods : Ten single-rooted human-teeth and ten bovine incisors were prepared using a #3 bur of a fiber post system (12 mm long). The posts were duplicated with resin cement (Duolink). The root canals were treated with All Bond 2 adhesive system and the resin posts were cemented using Duolink. The specimens were cut perpendicular to their long axis, yielding disc-specimens with 1.5 mm thickness, which were submitted to a push-out test (1 mm/min). Ten bond strength values per group (n = 10) were used for statistical analysis (Student t test, a =.05). Results : Statistically significant differences were found for the bond strength values between bovine- (4.1 1.3 MPa) and human-root dentin (8.6 5.7 MPa) (P =.0001). Conclusion : The push-out strengths of bovine- and human-root dentin were statistically different.
Issue Date: 
Indian Journal of Dental Research, v. 20, n. 3, p. 332-336, 2009.
Time Duration: 
  • Bovine tooth
  • Human-tooth
  • Push-out test
  • Root dentin
  • dentin bonding agent
  • resin cement
  • animal
  • cattle
  • comparative study
  • dental bonding
  • dental care
  • dental surgery
  • dentin
  • disease model
  • drug effect
  • endodontics
  • human
  • methodology
  • nonparametric test
  • standard
  • tooth crown
  • tooth root
  • ultrastructure
  • Animals
  • Cattle
  • Dental Bonding
  • Dental Marginal Adaptation
  • Dental Restoration Failure
  • Dental Stress Analysis
  • Dentin
  • Dentin-Bonding Agents
  • Disease Models, Animal
  • Humans
  • Post and Core Technique
  • Reference Standards
  • Resin Cements
  • Root Canal Preparation
  • Statistics, Nonparametric
  • Tooth Root
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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