THE STRESS DISTRIBUTION EVALUATION OF TWO DIFFERENT POST TYPES WHICH USED IN ANTERIOR TEETH WITH COMPLICATED CROWN-ROOT FRACTURE: A FINITE ELEMENT ANALYSIS METHOD

Yıl 2018, Cilt: 28 Sayı: 3, 326 - 332, 11.07.2018

Abdullah Emre Karaali Mehmet Sinan Doğan , Ayşe Günay

https://doi.org/10.17567/ataunidfd.473231

Öz

ABSTRACT

Aim: The aim of this study was to compare the stress distribution under
artificial forces that simulate the biting forces of the two different post
types used in maxillary anterior teeth that had complicated crown-root
fractures and to determine the region where the stress occurred. For this
purpose, a finite element analysis method was used.

Material and method: In the study, Glass fiber post (Group I) and carbon fiber post (Group II)
were used to model tooth with complicated crown-root fracture, which would be
horizontal in the cervical region of the fracture line. In the model, fractured
teeth fragment (coronal and root fragments) were reattachment to by post. The
force of 100N was applied to the incisal of the teeth at 90⁰ angles
to the groups (longitudinal axis). Finite element analysis method was used to
evaluate stress resulting from force and to obtain a three-dimensional model.
Analyzes were done with the ANSYS program (ANSYSRel.6.0, ANSYS
Inc., Houston, TX, USA).

Results: As the
results of the analysis, the resistance of glass fiber post against the forces
was higher than the carbon fiber post. The stresses were concentrated mostly at
the palatinal regions in group I and II.

Conclusion: The
rehabilitation of esthetic and functional for anterior group teeth with complicated
crown-root fractures was favorable glass fiber post than carbon fiber post.

Keywords: Dental trauma, crown-root fracture, glass fiber post, carbon fiber
post, FEM

 

KOMPLİKE
KRON-KÖK KIRIĞI OLUŞMUŞ ÖN GRUP DİŞLERDE KULLANILAN İKİ FARKLI POST TİPİNİN
STRES DAĞILIMININ DEĞERLENDIİRİLMESİ: SONLU ELEMENT ANALİZ YÖNTEMİ

ÖZ

 

Amaç:
Bu çalışmanın amacı, komplike kron-kök kırığı
gerçekleşen ön grup dişlerde kullanılan iki farklı post tipinin ısırma
kuvvetlerini taklit eden yapay kuvvetler altında stres dağılımının
karşılaştırılması ve stresin oluştuğu bölgenin belirlenmesidir. Bu amaç
doğrultusunda sonlu elemanlar analiz yöntemi kullanıldı.

Gereç
ve Yöntem: Çalışmada kırık hattı dişin kole bölgesinde yatay
olacak şekilde komplike kron-kök kırığı oluşturulan diş modeline cam fiber post
(Grup I) ve karbon fiber post (Grup II) kullanıldı. Modeldeki kırık diş
parçaları (kronal ve kök parçaları) post yardımıyla yeniden yapıştırıldı.
Gruplara 100N kuvvet dişlerin insizal kenarına 90 derecelik açı ( dişin uzun
aksına) ile uygulandı. Kuvvet sonucu oluşan stresi değerlendirmek ve üç boyutlu
model elde etmek için sonlu elemanlar analiz yöntemi kullanıldı. Analizler
ANSYS programı ile yapıldı.

Bulgular: Analiz sonuçlarına göre, cam fiber postun kuvvetlere karşı direnci
karbon fiber posta göre daha yüksek bulundu. Ayrıca stresler çoğunlukla her iki
grupta dişin palatinal bölgelerinde yoğunlaşmıştır.

Sonuç:
Komplike kron- kök kırıklarına maruz kalan üst ön
grup dişlerde estetik ve fonksiyonel iyileştirme sağlamak için karbon fiber
posta göre cam fiber postun kullanımı daha uygun bulundu.

Anahtar
Kelimeler: Dental travma, kron-kök kırığı, cam fiber post,
karbon fiber post, FEM

Anahtar Kelimeler

Dental trauma, crown-root fracture, glass fiber post, carbon fiber post

Kaynakça

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