Dergiler / International Dental Research / 2018 / Cilt: 8 - Sayı: 3

Effects of the geometric shape and placing length of a fiber post on the stress distribution in a mandibular premolar tooth: A finite element analysis study

Sayfa
105–110
Yayın Tarihi
2022-10-19
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Moreover, the 10-mm long fiber post modelsgenerated greater von Mises stresses than the 5-mm long fiber postmodels in the dentin tissue and luting cement.Conclusions: According to the study findings, the use of oval fiberposts at both placing lengths is suggested for oval shaped root canalsdue to the lower stress concentrations.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Aim: The aim of this study was to evaluate the effects of twogeometrically different fiber post systems and two different placinglengths on the stress distribution of endodontically treated teeth.Methodology: Four different mandibular premolar tooth modelswere created.
📊
Temel Bulgular & Veri:An oblique force of 300 N wasapplied to the top of the tooth, and von Mises stress evaluations werecarried out on the dentin tissue, luting cement, and fiber posts.Results: The maximum von Mises stresses were observed in the 10-mm long circular fiber post model, while the minimum stresses wereseen in the 5-mm long oval fiber post model.
💡
Sonuç & Katkı:Moreover, the 10-mm long fiber post modelsgenerated greater von Mises stresses than the 5-mm long fiber postmodels in the dentin tissue and luting cement.Conclusions: According to the study findings, the use of oval fiberposts at both placing lengths is suggested for oval shaped root canalsdue to the lower stress concentrations.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Aim: The aim of this study was to evaluate the effects of twogeometrically different fiber post systems and two different placinglengths on the stress distribution of endodontically treated teeth.Methodology: Four different mandibular premolar tooth modelswere created. These models were restored using oval or circular fiberposts with two different placing lengths. An oblique force of 300 N wasapplied to the top of the tooth, and von Mises stress evaluations werecarried out on the dentin tissue, luting cement, and fiber posts.Results: The maximum von Mises stresses were observed in the 10-mm long circular fiber post model, while the minimum stresses wereseen in the 5-mm long oval fiber post model. In general, the oval fiberpost models presented more homogeneous stresses than the circularfiber post models. Moreover, the 10-mm long fiber post modelsgenerated greater von Mises stresses than the 5-mm long fiber postmodels in the dentin tissue and luting cement.Conclusions: According to the study findings, the use of oval fiberposts at both placing lengths is suggested for oval shaped root canalsdue to the lower stress concentrations.

🔖

Bu Makaleye Atıf Yap

ASLAN, T., KILIÇ, K., ER, Ö., YILDIRIM, Ş., ESİM, E. (2022). Effects of the geometric shape and placing length of a fiber post on the stress distribution in a mandibular premolar tooth: A finite element analysis study. International Dental Research, Cilt: 8 - Sayı: 3, 105–110. https://ajindex.com/articles/539540

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (14)

  1. Er O, Kilic K, Esim E, Aslan T, Kilinc HI, Yildirim S. Stress distribution of oval and circular fiber posts in amandibular premolar: a three-dimensional finite element analysis. J Adv Prosthodont 2013;5:434-9. (Crossref
  2. Kremeier K, Fasen L, Klaiber B, Hofmann N. Influence of endodontic post type (glass fiber, quartz fiber or gold) and luting material on push-out bond strength to dentin in vitro. Dent Mater 2008;24:660-6. (Crossref
  3. Munoz C, Llena C, Forner L. Oval fiber posts do not improve adaptation to oval-shaped canal walls. J Endod 2011;37:1386- 9. (Crossref
  4. Kilic K, Er O, Kilinc HI, et al. Infrared thermographic comparison of temperature increases on the root surface during dowel space preparations using circular versus oval fiber dowel systems. J Prosthodont 2013;22:203-7. (Crossref
  5. Coniglio I, Garcia-Godoy F, Magni E, Carvalho CA, Ferrari M. Resin cement thickness in oval-shaped canals: oval vs. circular fiber posts in combination with different tips/drills for post space preparation. Am J Dent 2009;22:290-4
  6. Coniglio I, Magni E, Cantoro A, Goracci C, Ferrari M. Push-out bond strength of circular and oval-shaped fiber posts. Clin Oral Investig 2011;15:667-72. (Crossref
  7. Asmussen E, Peutzfeldt A, Sahafi A. Finite element analysis of stresses in endodontically treated, dowel-restored teeth. J Prosthet Dent 2005;94:321-9. (Crossref
  8. Adıgüzel Ö, Yiğit Özer S, Bahşi E, Yavuz İ. Finite element analysis of endodontically treated tooth restored with different posts under thermal and mechanical loading. Int Dent Res 2011;3:75-80. (Crossref
  9. Scotti R, Valandro LF, Galhano GA, Baldissara P, Bottino MA. Effect of post length on the fatigue resistance of bovine teeth restored with bonded fiber posts: a pilot study. Int J Prosthodont 2006;19:504-6
  10. Kainose K, Nakajima M, Foxton R, Wakabayashi N, Tagami J. Stress distribution in root filled teeth restored with various post and core techniques: effect of post length and crown height. Int Endod J 2015;48:1023-32. (Crossref
  11. Sorensen JA, Martinoff JT. Clinically significant factors in dowel design. J Prosthet Dent 1984;52:28-35. (Crossref
  12. Baumgaertel S. Cortical bone thickness and bone depth of the posterior palatal alveolar process for mini-implant insertion in adults. Am J Orthod Dentofacial Orthop 2011;140:806-11. (Crossref
  13. Wheeler RC. Wheeler’s Dental Anatomy, and Occlusion, 8th ed. St Louis, MO: Saunders; 2003:154
  14. Krastl G, Lorch H, Zitzmann NU, Addison O, Di