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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/74888
Title: 
Mechanical Property Assessment of Bone Healing around a Titanium-Zirconium Alloy Dental Implant
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
  • 1523-0899
  • 1708-8208
Abstract: 
Background: It has been reported that titanium-zirconium alloy with 13-17% zirconium (TiZr1317) implants show higher biomechanical stability and bone area percentage relative to commercially pure titanium (cpTi) grade 4 fixtures. Purpose: This study aimed to determine whether the higher stability for TiZr1317 implants is associated with higher mechanical properties of remodeling bone in the areas around the implants. Materials and Methods: This study utilized 36 implants (n=18: TiZr1317, n=18: cpTi), which were placed in the healed ridges of the mandibular premolar and first molar of 12 mini pigs (n=3 implants/animal). After 4 weeks in vivo, the samples were retrieved, and resin-embedded histologic sections of approximately 100μm in thickness were prepared. In order to determine the nanomechanical properties, nanoindentation (n=30 tests/specimen) was performed on the bone tissue of the sections under wet conditions with maximum load of 300μN (loading rate: 60μN/s). Results: The mean (±standard deviation) elastic modulus (E) and hardness (H) for the TiZr1317 group were 2.73±0.50GPa and 0.116±0.017GPa, respectively. For the cpTi group, values were 2.68±0.51GPa and 0.110±0.017GPa for E and H, respectively. Although slightly higher mechanical properties values were observed for the TiZr1317 implants relative to the cpTi for both elastic modulus and hardness, these differences were not significant (E=p>0.75; H=p>0.59). Conclusions: The titanium-zirconium alloy used in this study presented similar degrees of nanomechanical properties to that of the cpTi implants. © 2013 Wiley Periodicals, Inc.
Issue Date: 
28-Mar-2013
Citation: 
Clinical Implant Dentistry and Related Research.
Keywords: 
  • Animal model
  • Biomechanics
  • Bone
  • Dental/endosteal implants
  • Nanoindentation
Source: 
http://dx.doi.org/10.1111/cid.12061
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/74888
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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