Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

1300-9044 2667-5161

Ataturk University

10.17567/ataunidfd.461225

Dentistry

Diş Hekimliği

ÇİFT TARAFLI YÜKLEME ALTINDA FARKLI MUKOZA KALINLIKLARININ İKİ TİP İMPLANT DESTEKLİ OVERDENTURE DİZAYNI ÜZERİNDEKİ STRES DAĞILIMINA ETKİSİ

https://orcid.org/0000-0003-4802-1604

Özyılmaz

Özgün Yusuf

https://orcid.org/0000-0001-7346-3717

Aykent

Filiz

03 22 2019

29 2 277 286 04 17 2018 09 19 2018

1986

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

Amaç:Bu çalışmanın amacı fotoelastik stres analiz yöntemi kullanılarak çift taraflıyükleme altında farklı mukoza kalınlığının, iki implant destekli mandibularoverdenture tasarımları üzerindeki stres dağılımına etkisini değerlendirmektir.Gereç ve Yöntem:Kaninler bölgesine iki adet bağımsız implant (4,0x11 mm; Fixture Osseospeedİmplant, Astra Tech, Mölndal, İsveç) yerleştirilerek altı adet alt çene dişsizfotoelastik modeller üretildi. Çalışılanataçman sistemler, locator ve ball stud ataçman sistemlerdi. Ball ve locator grupların her ikisi de,farklı mukoza kalınlıkları (1mm-1mm, 1mm-2mm, 1mm-4mm ) sağlayan farklı rezidüel kret yüksekliğine sahip üçfarklı modelden oluşmaktadır. Birinci molarların santral fossalarına çift taraflıolarak 135 N statik vertikal kuvvet uygulandı.Modeller, yükleme altında implantların etrafında ve implantlar arasıbölgede izokromatik fringeleri gözlemekiçin dairesel polariskop alanına yerleştirildi. Fotoelastik stres fringelerimonitörize edildi ve fotoğrafik olarak kaydedildi. Bulgular:Ball ataçman grupların tüm test modellerinde locator gruplardan daha yüksekstres değerleri gözlendi. Her iki ataçman tasarımında en düşük stres değerleri1mm-1mm mukoza kalınlığındaki modellerde görüldü. Locator grupların ballataçman gruplara göre stresi daha homojen dağıttığı gözlendi.Sonuç:Bu çalışmanın sonucuna göre, protez yapımı için yerleştirilen implantlararasında farklı mukoza kalınlıkları varlığında locator ataçman seçimi ballataçmana göre daha dengeli stres dağılımı sebebiyle avantaj sağlamaktadır. Anahtar Sözcükler: Fotoelastikanaliz, mukoza kalınlığı, stres dağılımı, çift taraflı yükleme

Fotoelastik analiz mukoza kalınlığı stres dağılımı

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