FARKLI UZUNLUKTAKİ SİLİNDİRİK İMPLANTLARDA OLUŞAN STRES MİKTARININ SONLU ELEMANLAR ANALİZİ İLE İNCELENMESİ

Year 2017, Volume: 26 Issue: 1, 64 - 70, 01.03.2017

Mustafa Taha Yaşar Erdem Kılıç Alper Alkan

Abstract

Bu çalışmanın amacı, eşit yükler altında farklı uzunluktaki silindirik implantlarda oluşan stres dağılımının
sonlu elemanlar stres analizi ile değerlendirilmesidir.
Çalışmamızda 3,2 mm çapında 8 mm ve 10 mm uzunluğunda silindirik implantlar karşılaştırılmıştır.
Çalışmamızda sonlu elemanlar stres analizi ile 150 N
oblik yük altında implantlarda ve kemikte oluşan stres- gerinim miktarları incelenmiştir.
Sonlu elemanlar analizi sonuçlarına bakıldığında; implantlar üzerinde oluşan Von Mises stresin istenilen
aralıkta olduğu ve 4. sertlik titanyumun dayanım sınırları içerinde yer aldığı fakat kemikte oluşan asal gerinim
miktarının ise Frost’un “Mekanostat” teorisinde belirtilen sınırlardan yüksek olduğu gözlenmiştir.
Sonuç olarak 8 ve 10 mm uzunluğa sahip silindirik implantlarda, aradaki uzunluk farkının ne implantlarda ne
de kemikte oluşan stres miktarını önemli ölçüde etkilemediği görülmüştür.

Keywords

Silindirik implantlar, sonlu elemanlar analizi, biyomekanik analiz

Evalution of Stress Amounts on Different Length Cylindric Implants via Finite Element Analysis

Abstract

The aim of this study was to investigate stress amounts
on different length cylindric implants with finite element analysis. In our study 3,2 mm diameter 8 mm and
10 mm length cylindric implants were compared.
We analyzed stress-strain amounts of implants and
bone, under 150 N oblique loads with finite element
analysis.
According to finite element analysis results, Von Mises
stres on implants were within durability limits of grade
4 titanium. However, strain amounts on bone were out
of range according to the Frost’s “Mekanostat” theory .
In conclusion, the length is not a main factor to determine the stress levels on the implants and bone in 8 and
10 mm length cylindric implants.

Keywords

Cylindric implants, Finite element analysis, Biomechanical analysis

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