Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

Zelić, Ksenija; Vukićević, Arso M.; Jovičić, Gordana; Aleksandrović, Srbislav; Filipović, Nenad; Djurić, Marija

doi:10.1111/iej.12381

Cited by 94 publications

(72 citation statements)

References 39 publications

(114 reference statements)

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“…A maximum fluted diameter limitation of 0.80mm limits the removal of dentin in the coronal third aiming at a reduction of teeth fracture susceptibility (12).…”

Section: Introductionmentioning

confidence: 99%

Effect of canal preparation with TRUShape and Vortex rotary instruments on three‐dimensional geometry of oval root canals

et al. 2017

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The purpose of this study was to assess the geometry of non-round root canals after preparation with TRUShape (a novel instrument with s-shaped longitudinal design) in comparison to conventional rotary instrumentation using micro-computed tomography. Twenty distal root canals of mandibular molars were randomly distributed in two groups to be shaped with either TRUShape or Vortex rotaries. Percentages of unprepared surface and volume of dentin removal for the entire canal and for the apical 4 mm were calculated. Canal transportation and the structure model index (SMI) were assessed. Data were compared with Student t-tests. Shaping with both techniques resulted in similar prepared surface and volume of dentin removed, as well as the extent of canal transportation. The SMI shape factor was significantly lower for TRUShape preparations (P = 0.04) suggesting less rounding during rotary preparation. Although both instruments were suitable for the preparation of oval canals, TRUShape appeared to better conform to the original ribbon-shaped anatomy. Effect of canal preparation with TRUShape and Vortex rotary instruments on threedimensional geometry of oval root canals AbstractThe purpose of this study was to assess the geometry of non-round root canals after preparation with TRUShape (a novel instrument with s-shaped longitudinal design) in comparison to conventional rotary instrumentation using micro-computed tomography. Twenty distal root canals of mandibular molars were randomly distributed in two groups to be shaped with eitherTRUShape or Vortex rotaries. Percentages of unprepared surface and volume of dentin removal for the entire canal and for the apical 4mm were calculated. Canal transportation and the structure model index (SMI) were assessed. Data was compared with Student T-tests. Shaping with both techniques resulted in similar prepared surface and volume of dentin removed, as well as the extent of canal transportation. The SMI shape factor was significantly lower for TRUShape preparations (p=0.04) suggesting less rounding during rotary preparation. Although both instruments were suitable for the preparation of oval canals, TRUShape appeared to better conform to the original ribbon-shaped anatomy.

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“…A maximum fluted diameter limitation of 0.80mm limits the removal of dentin in the coronal third aiming at a reduction of teeth fracture susceptibility (12).…”

Section: Introductionmentioning

confidence: 99%

Effect of canal preparation with TRUShape and Vortex rotary instruments on three‐dimensional geometry of oval root canals

et al. 2017

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“…Consequently, as a disadvantage of this study we report the impossibility to perform in-vivo validation of the obtained results in the case of RAVM. However, since software tools used in this study have been previously validated and established as reliable in numerous examples [13][14][15][16]22,23], we assumed that calculated physical quantities were acceptable. To the best of our knowledge, there is no similar study in the literature that analyzed RAVM from the point of biomechanics.…”

Section: Resultsmentioning

confidence: 99%

“…In the recent literature, mechanical response and interaction of medical devices, human tissues and blood flow are commonly studied by using finite element method (FEM) or finite element analysis (FEA) [13][14][15][16]. FEA represents a cost-effective tool in situations where precise analysis and evaluation of physical quantities (such as stress, strain, displacements, velocity, temperature, etc.)…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of uncommonly large renal arteriovenous malformation—Adjacent renal cyst complex

Vukićević

Velicki

Jovičić

et al. 2015

Computers in Biology and Medicine

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“…Realistic modeling allows the researchers to calculate general stress distribution across the model and to predict possible fracture modes [2,3,6]. Furthermore, computational methods can be carried out with much lower costs, compared to experimental studies and clinical trials.…”

Section: Discussionmentioning

confidence: 99%

“…Relevant research was focused on reducing respective damage through implementation of different restorative materials and cavity geometry [1,2]. Numerical analyses have been performed to obtain stress distribution using 3D finite element model [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Cavity Design on Stress Distribution in Second Premolar Tooth Using Finite Element Analysis

et al. 2017

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The objective of this study is, using finite element analysis, to design cavity geometry, to minimize risk of the fraction and cracking in second premolar tooth. To avoid possible tooth fracture, proper cavity geometry can be designed, to reduce the effect of masticatory forces. Premolar tooth was chosen due to its least strength in comparison to other type of teeth. In literature, there was insufficient study on using finite elements methods to investigate restorated premolar teeth. A healthy premolar tooth was scanned to obtain 3D model of it, to perform finite elements analysis. The validation was performed based on existing experimental data. According to stress distribution, three different cavity geometries were designed using composite resin and ceramic as a restoration material. It is observed that the amount of stress acting on tooth is diminishable with regard to analysis results. Hence, proper cavity geometry and material were found to minimize the risk of tooth fracture.

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Mechanical weakening of devitalized teeth: three‐dimensional Finite Element Analysis and prediction of tooth fracture

Cited by 94 publications

References 39 publications

Effect of canal preparation with TRUShape and Vortex rotary instruments on three‐dimensional geometry of oval root canals

Effect of canal preparation with TRUShape and Vortex rotary instruments on three‐dimensional geometry of oval root canals

Finite element analysis of uncommonly large renal arteriovenous malformation—Adjacent renal cyst complex

Influence of Cavity Design on Stress Distribution in Second Premolar Tooth Using Finite Element Analysis

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