Stress distribution in molars restored with inlays or onlays with or without endodontic treatment: a three-dimensional finite element analysis

The Journal of Prosthetic Dentistry
W JiangNi LongXing

Abstract

Previous research into the strength of endodontically treated or vital teeth restored with inlays or onlays has not determined which restoration method and material provide the most favorable stress distribution upon loading. The purpose of this study was to calculate the von Mises stresses in a mandibular first molar using a 3-dimensional (3-D) finite element model. Models compared endodontically treated and vital teeth, a variety of restorative materials, and the use of either inlays or onlays to restore teeth. Four 3-D models of mandibular first molars were created: (1) the IV group (inlay restored, vital pulp); (2) the OV group (onlay restored, vital pulp); (3) the IE group (inlay restored, endodontically treated); and (4) the OE group (onlay restored, endodontically treated). In each group, 3 types of restorative material were tested: (1) composite resin, (2) ceramic, and (3) gold alloy. The materials had elastic moduli of 19 GPa, 65 GPa, and 96.6 GPa, respectively. Each model was subjected to a force of 45 N directed to the occlusal surface, applied either vertically or laterally (45 degrees obliquely). The stresses occurring in dentin tissue were calculated. The stress distribution patterns and the maximum von Mises stre...Continue Reading

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Citations

Jan 1, 2013·Croatian Medical Journal·Ivana KantardzićOgnjan Luzanin
Aug 21, 2013·TheScientificWorldJournal·Ihsan Yıkılgan, Oya Bala
May 21, 2013·The Journal of Prosthetic Dentistry·Mehmet Cudi Balkaya, Ilda Sinem Birdal
Feb 22, 2012·Journal of Endodontics·Deog-Gyu SeoJeong-Won Park
Sep 30, 2010·The Journal of Prosthetic Dentistry·Giovanni Tommaso RoccaIvo Krejci
Sep 29, 2011·American Journal of Physical Anthropology·Stefano BenazziGerhard W Weber
Jun 14, 2013·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Coskun YildizYasemin Kulak-Ozkan
Jul 15, 2015·Clinical Oral Investigations·Fabrícia Araújo PereiraPaulo Vinícius Soares
Mar 11, 2015·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Foudda HomsyJose Johann Chidiac
Oct 1, 2014·Operative Dentistry·Hm El-DamanhouryJa Platt
May 28, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Shirin ShahrbafNicolas Martin
Feb 2, 2018·Computer Methods in Biomechanics and Biomedical Engineering·Mojtaba MahmoudiParviz Amini
May 8, 2018·Journal of Prosthodontic Research·Ebrahim MaghamiJames Kit-Hon Tsoi
Aug 23, 2018·Journal of Applied Oral Science : Revista FOB·Ana Luíza Serralha de Velloso ViannaCarlos José Soares
Jun 23, 2018·The Journal of Advanced Prosthodontics·Hongso YangHyunju Chung
Jan 16, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Xiaozhou LiuHaiyan Li
Apr 15, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Ehsan HomaeiKhalil Farhangdoost

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