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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/15903
Title: 
Influence of Implant Design on the Biomechanical Environment of Immediately Placed Implants: Computed Tomography-Based Nonlinear Three-Dimensional Finite Element Analysis
Author(s): 
Institution: 
  • NYU
  • Univ Coll
  • Universidade Estadual Paulista (UNESP)
  • Katholieke Univ Leuven
  • Leuven Med Technol Ctr
ISSN: 
0882-2786
Sponsorship: 
  • Research Support Foundation of São Paulo State
  • Committee for Postgraduate Courses in Higher Education
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • K. U. Leuven research fund
  • EU
Sponsorship Process Number: 
  • FAPESP: 06/06844-2
  • K. U. Leuven research fund: OT/06/58
  • EU: QLK6-CT-2002-02442 IMLOAD
Abstract: 
Purpose: To evaluate the influence of different implant designs on the biomechanical environment of immediately placed implants. Materials and Methods: Computed tomography (CT)-based finite element models comprising a maxillary central incisor socket and four commercially available internal-connection implants (SIN SW, 3i Certain, Nobel Replace, and ITI Standard) of comparable diameters and lengths were constructed. Biomechanical scenarios of immediate placement, immediate loading, and delayed loading protocols were simulated. Analysis of variance at the 95% confidence level was used to evaluate peak equivalent strain (EQV strain) in bone and bone-to-implant relative displacement. Results: Loading magnitude (77.6%) and the clinical situation (15.0%) (ie, presence or absence of an extraction socket defect, condition of the bone-to-implant interface) presented the highest relative contributions to the results. Implant design contributed significantly to strains and displacements in the immediate placement protocol. Whereas a greater contribution of implant design was observed for strain values and distributions for immediately placed and immediately loaded protocols, a smaller contribution was observed in the delayed loading scenario. Conclusion: Implant design contributes significantly to changing biomechanical scenarios for immediately placed implants. The results also suggest that avoiding implant overloading and ensuring high primary implant stability are critical in encouraging the load-bearing capability of immediately placed implants. Int J Oral Maxillofac Implants 2011;26:1279-1287
Issue Date: 
1-Nov-2011
Citation: 
International Journal of Oral & Maxillofacial Implants. Hanover Park: Quintessence Publishing Co Inc, v. 26, n. 6, p. 1279-1287, 2011.
Time Duration: 
1279-1287
Publisher: 
Quintessence Publishing Co Inc
Keywords: 
  • dental implant design
  • finite element analysis
  • immediate implant loading
  • immediate implant placement
Source: 
http://www.quintpub.com/journals/omi/abstract.php?article_id=11636#.Ui9lOcbks_Y
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/15903
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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