Comparison of stress distribution around vertical and angled implants with finite element analysis

1996-01-01
Canay, Ragibe Şenay
Hersek, Nur Emel
Akpınar, İrfan
Aşık, Mehmet Zülfü
The distribution of stress around implants placed in the first molar region of the mandible was biomechanically analyzed in a two-dimensional mathematical model. Two types of implants, vertical and angled, were subjected to a vertical load of 100 N and a horizontal load of 50 N in turn. The magnitudes and contours of compressive and tensile stress within the surrounding bone were determined. For the sake of comparison, maximal compressive stress and maximal tensile stress at the surrounding bone were calculated. There were no measurable differences in stress values and contours when a horizontal load was applied to the vertical and angled implants. However, with the vertical loading, the compressive stress values were five times higher around the cervical region of the angled implant than around the same area in the vertical implant.
Journal of Practical Dentistry: Quintessence International

Suggestions

Investigation of structural properties of metal nanorods: molecular dynamics simulations
Yağlı, Hüseyin; Erkoç, Şakir; Yazıcıoğlu, Yiğit; Department of Micro and Nanotechnology (2014)
After recent advances in microscopy and characterization techniques reached smaller length scales down to individual atoms, nanowires attracted a large interest. The material properties that are not changeable in bulk materials can be controlled in nanowires to fit the requirements of the intended application area. Characterization of nanowires is important in order to establish a reproducible relationship with their characteristics and their desired functionality. In this thesis, structural properties of c...
Composite clinoptilolite/PCL-PEG-PCL scaffolds for bone regeneration: In vitro and in vivo evaluation
Pazarçeviren, Ahmet Engin; Altunbas, Korhan; Yaprakci, Volkan; Erdemli, Ozge; Keskin, Dilek; Tezcaner, Ayşen (Wiley, 2020-01-01)
In this study, clinoptilolite (CLN) was employed as a reinforcement in a polymer-based composite scaffold in bone tissue engineering and evaluated in vivo for the first time. Highly porous, mechanically stable, and osteogenic CLN/PCL-PEG-PCL (CLN/PCEC) scaffolds were fabricated with modified particulate leaching/compression molding technique with varying CLN contents. We hypothesized that CLN reinforcement in a composite scaffold will improve bone regeneration and promote repair. Therefore, the scaffolds we...
Predicting bone remodeling around tissue- and bone-level dental implants used in reduced bone width
Eser, Atilim; Tönük, Ergin; Akça, Kıvanç; Dard, Michel M.; Cehreli, Murat Cavit (Elsevier BV, 2013-09-03)
The objective of this study was to predict time-dependent bone remodeling around tissue- and bone-level dental implants used in patients with reduced bone width. The remodeling of bone around titanium tissue-level, and titanium and titanium-zirconium alloy bone-level implants was studied under 100 N oblique load for one month by implementing the Stanford theory into three-dimensional finite element models. Maximum principal stress, minimum principal stress, and strain energy density in pen-implant bone and ...
Nonlinear viscoelastic material property estimation of lower extremity residual limb tissues
Tönük, Ergin (ASME International, 2004-04-01)
Axisymmetric nonlinear finite-element analysis was used to simulate force-relaxation and creep data obtained during in vivo indentation of the residual limb sofa tissues of six individuals with trans-tibial amputation [1]. The finite-element models facilitated estimation of an appropriate set of nonlinear viscoelastic material coefficients of extended James-Green-Simpson material formulation for bulk soft tissue at discrete, clinically relevant test locations. The results indicate that over 90% of the exper...
Predicting time-dependent remodeling of bone around immediately loaded dental implants with different designs
Eser, Atilim; Tönük, Ergin; Akça, Kıvanç; Cehreli, Murat Cavit (Elsevier BV, 2010-01-01)
The purpose of this study was to predict time-dependent biomechanics of bone around cylindrical screw dental implants with different macrogeometric designs under simulated immediate loading condition. The remodeling of bone around a parallel-sided and a tapered dental implant of same length was studied under 100 N oblique load by implementing the Stanford theory into three-dimensional finite element models. The results of the analyses were examined in five time intervals consisting loading immediately after...
Citation Formats
R. Ş. Canay, N. E. Hersek, İ. Akpınar, and M. Z. Aşık, “Comparison of stress distribution around vertical and angled implants with finite element analysis,” Journal of Practical Dentistry: Quintessence International, pp. 591–598, 1996, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79564.