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Strain, marginal misfit and torque analysis of cyclic loaded implant-supported frameworks

Grant number: 10/13998-1
Support Opportunities:Scholarships in Brazil - Master
Effective date (Start): March 01, 2011
Effective date (End): February 28, 2013
Field of knowledge:Health Sciences - Dentistry - Dental Clinics
Principal Investigator:Marcelo Ferraz Mesquita
Grantee:Isabella da Silva Vieira Marques
Host Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil


The objective of this study is to evaluate the influence of mechanical loading on loosening torque of prosthetic screws, misfit and strain of implant-supported prosthesis. Frameworks will be casted in commercially pure titanium, simulating fixed partial dentures (three elements retained by two implants)and complete fixed dentures (retained for five implants). After waxing, the frameworks will be distributed among the 3 groups (n = 10) for each evaluated designs. A model will be fabricated for each framework, which will be evaluated the misfit and loosening torque before and after mechanical cycling (1 million mechanical cycles, 2 Hz, 280N). The strain analysis will be performed using strain gauges associated with casted frameworks and also by the finite element method, to which will be made three-dimensional virtual models simulating situations evaluated in vitro. After obtaining the results, they shall be submitted to exploratory analysis followed by statistical tests more appropriate. (AU)

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Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MARQUES, Isabella da Silva Vieira. Influence of mechanical cycling on marginal misfit, strain and loosening torque in the implant-supported system. 2013. Master's Dissertation - Universidade Estadual de Campinas (UNICAMP). Faculdade de Odontologia de Piracicaba Piracicaba, SP.

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