Diş tedavisinde kullanılan post core sistemin yaklaşık çözüm yöntemleri kullanılarak optimum tasarımı

Year 2021, , 375 - 383, 15.04.2021

Oğuz Kayabaşı

https://doi.org/10.17714/gumusfenbil.734180

Abstract

Post core tedavisi, çok fazla risk taşıyan bir tedavi olması nedeniyle yüksek başarısızlık riski olan bir tedavidir. Bu nedenle, post core şeklinin optimizasyonu büyük önem taşımaktadır. Başarısızlık riski, zayıf noktaların keşfedilmesi ve optimize edilmesiyle azaltılabilir. Post core şeklinin tasarımı, mühendisler ve cerrahlar arasında yakın işbirliği gerektiren karmaşık bir süreçtir. Çok dayanıklı post core tasarlamak için, çene kemiğinde meydana gelen doğal süreçleri hesaba katmak gerekir. Post core tasarımındaki en önemli faktörlerden biri post core da, çene kemiğinde ve dişte meydana gelen gerilmeleri azaltmaktır. Post core testlerin in vivo gerçekleştirilmesinin zorluğu nedeniyle, yapısal modelleri yürütmek için matematiksel modeller geliştirilmiştir. Bu çalışmada post core sisteminin statik ve dinamik yükler altındaki etkileri sonlu elemanlar metodu ile incelenmiş, ilk olarak 3D modellemesi yapılmıştır. Analizler, farklı malzemeden yapılmış elemanların geometrik özelliklerle optimize edilmesiyle yapılmıştır. Sonuçlar karşılaştırılmış ve post çekirdeklerin potansiyel zayıflıkları analiz edilmiştir. Bu çalışmada, post core tasarımı için etkili ve otomatik bir tasarım stratejisi önerilmiştir. Bu stratejide, Sonlu Elemanlar Analizi, Yaklaşık model ve sayısal bir optimizasyon algoritması, otomatik bir tasarım aracı oluşturmak için entegre edilmiştir. Bu yaklaşımı kullanarak, post core’un şekil tasarımı, geleneksel bir sayısal optimizasyon algoritması ile kolayca çözülebilen bir optimizasyon problemi şeklinde formüle edilebilir. Bu, tasarım için zaman kazandıracak ve post core sisteminin hastaya yanlış uygulanmasından kaynaklanan kalıcı hasarları önleyecektir.

Keywords

Post core sistem, Sonlu elemanlar analizi, Yaklaşık çözüm yöntemi

Optimum design of post core system used in dental treatment using approximate solution methods

Abstract

Post-core therapy is a treatment with a high risk of failure due to the high risk of treatment. For this reason, optimization of the post core shape is of great importance. Failure risk can be reduced by discovering and optimizing weak points. The design of the post-core shape is a complex process that requires close cooperation between engineers and surgeons. In order to design a very durable post core, it is necessary to take into account the natural processes occurring in the jawbone. One of the most important factors in post-core design is to reduce stresses in post-core, jawbone and tooth. Because of the difficulty of performing post-core tests in vivo, mathematical models have been developed to carry out structural models. In this study, the effects of post core system under static and dynamic loads were examined with finite element method and firstly 3D modeling was done. The analyzes were made by optimizing the geometric properties of the elements made of different materials. The results were compared and potential weaknesses of the post cores were analyzed. In this study, an effective and automatic design strategy for post core design is proposed. In this strategy, Finite Element Analysis, Approximate model and a numerical optimization algorithm, are integrated to create an automated design tool. This will save time for design and prevent permanent damage caused by improper application of the post core system to the patient.

Keywords

Post core system, Finite element analysis, Approximate solution techniques

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