Predicting time-dependent remodeling of bone around immediately loaded dental implants with different designs

Date

2010-01-01

Author

Eser, Atilim
Tönük, Ergin
Akça, Kıvanç
Cehreli, Murat Cavit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

185
views

0
downloads

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 implant placement, and after 1, 2,3 and 4 weeks following implantation. Maximum principal stress, minimum principal stress, and strain energy density in peri-implant bone and displacement in x-(implant lateral direction with a projection of the oblique force) and y-(implant longitudinal direction) axes of the implant were evaluated. The highest value of the maximum and minimum principal stresses around both implants increased in cortical bone and decreased in trabecular bone. The maximum and minimum principal stresses in cortical bone were higher around the tapered cylindrical implant, but stresses in the trabecular bone were higher around the parallel-sided cylindrical implant. Strain energy density around both implants increased in cortical bone, slightly decreased in trabecular bone, and higher values were obtained for the parallel-sided cylindrical implant. Displacement values slightly decreased in time in x-axis, and an initial decrease followed by a slight increase was observed in the y-axis. Bone responded differently in remodeling for the two implant designs under immediate loading, where the cortical bone carried the highest load. Application of oblique loading resulted in increase of stiffness in the peri-implant bone. (C) 2009 IPEM. Published by Elsevier Ltd. All rights reserved.

Subject Keywords

Biophysics, Biomedical Engineering

URI

https://hdl.handle.net/11511/39098

Journal

MEDICAL ENGINEERING & PHYSICS

DOI

https://doi.org/10.1016/j.medengphy.2009.10.004

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Numerical simulation of the effect of time-to-loading on peri-implant bone AKÇA, KIVANÇ; Eer, Atilim; Canay, Senay (Elsevier BV, 2010-01-01) Purpose: To evaluate the effect of time-to-loading on trabecular bone around single-tooth dental implants using numerical solutions based on computer models.
Effects of different inter-implant distances on the stress distribution around endosseous implants in posterior mandible: A 3D finite element analysis Simsek, B; Erkmen, E; Yilmaz, D; Eser, A (Elsevier BV, 2006-04-01) Purpose: The aim of this study was to evaluate the effects of different inter-implant distances on stress distribution in the bone around the endosseous titanium implants under vertical, oblique and horizontal loads in the posterior mandibular edentulousim by finite element analysis (3D FEA).
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 ...
A Study of Prosthetic Heart Valve Sounds Koymen, Hayrettin; Altay, Bulent K.; Ider, Yusuf Ziya (Institute of Electrical and Electronics Engineers (IEEE), 1987-11) In this paper a new mechanism is proposed for the generation of phonocardiogram (PCG) sounds from implanted mechanical prosthetic heart valves. The structures in the chest, the heart, its partitions, and major vessels, constitute a frequency selective system excited by the rapidly decelerating valve occluder. It is shown that the source, the rapidly decelerating valve, has a wide and flat power spectrum and hence is an impulsive excitation that couples energy to the resonance modes specified by the structur...
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...

Citation Formats

A. Eser, E. Tönük, K. Akça, and M. C. Cehreli, “Predicting time-dependent remodeling of bone around immediately loaded dental implants with different designs,” MEDICAL ENGINEERING & PHYSICS, pp. 22–31, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39098.