Three-dimensional finite element analysis of the maxillary central incisor in two different situations of traumatic impact

Silva, B. R. da; Neto, José Jeová Siebra Moreira; Silva, F. I. da; Aguiar, Andréa Silvia Walter de

doi:10.1080/10255842.2011.611115

Cited by 17 publications

(27 citation statements)

References 25 publications

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“…In accordance with previous studies (da Silva et al ), force direction had an impact on stress distribution. When the same force was applied perpendicularly to the tooth, maximum stress values were markedly higher than in axial direction.…”

Section: Discussionsupporting

confidence: 92%

“…A maximum biting force of 240 N was chosen as reported for incisors (Paphangkorakit & Osborn 1997). For dental trauma, an increased frontal load of 300 N was applied, which is one of the most frequent traumatic events in young patients (da Silva et al 2013, Lam 2016). However, a mesial orthodontic movement of incisors was simulated with the recommended force of 0.8 N (Wu et al 2018).…”

Section: Figurementioning

confidence: 99%

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Biomechanical performance of an immature maxillary central incisor after revitalization: a finite element analysis

et al. 2019

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Aim To investigate the stress distribution in an immature maxillary incisor and the same tooth after simulated revitalization with deposition of tubular dentine or cementum by finite element analysis (FEA). Methodology A finite element model of a maxillary central incisor was developed on the basis of a µCT scan. The tooth was segmented in two parts: a part that represented a tooth in an immature state and an apical part that represented the tissue formed after revitalization. The apical part was given the mechanical properties of dentine or cementum. The immature tooth and the same tooth reinforced by either dentine or cementum underwent simulation of biting, trauma and orthodontic movement. Von Mises stress values were compared between the scenarios and tooth segments. Results Maximum stress in the immature incisor developed apically; however, dentine‐ and cementum‐reinforced teeth revealed the greatest stress in the external portion of the root decreasing towards the apex. Greatest mechanical stress was caused by dental trauma perpendicular to the long axis of the root followed by biting and orthodontic movement. Stress peaks were lower in the dentine‐reinforced tooth compared with the cementum‐reinforced tooth in all scenarios; however, median stress in the immature part was reduced irrespective of dentine or cementum deposition. Dentine reinforcement caused greater stress values in the apical segment due to absorbance of the applied force, whereas stress was not transferred towards deposited cementum. Conclusions Apposition of simulated hard tissue in a maxillary central incisor after revitalization reduced mechanical stress in the immature tooth. Formation of dentine was advantageous because, unlike cementum, it facilitated an even stress distribution throughout the root resulting in lower stress values.

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Section: Discussionsupporting

confidence: 92%

Section: Figurementioning

confidence: 99%

Biomechanical performance of an immature maxillary central incisor after revitalization: a finite element analysis

et al. 2019

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“…A three‐dimensional elastic FEA was used, which permitted the investigation of anatomical sites that are practically inaccessible in vivo . In addition to the low cost of this method, the high reliability of the results and need for only a few complementary tests were added benefits . The results of FEA analyses are usually expressed as stress distributed in the structures under investigation; however, von Mises stress depends on the entire stress field, and is a widely used indicator of the possibility of damage occurring .…”

Section: Discussionmentioning

confidence: 99%

Stress distributions in internal resorption cavities restored with different materials at different root levels: A finite element analysis study

2018

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The aim of this study was to evaluate the stresses within simulated roots with internal resorption cavities at the apical, middle and coronal root levels, after obturation with gutta-percha and/or MTA utilising finite element analysis (FEA). Mandibular premolar teeth with internal resorption cavities at different root levels were modelled. Models were restored with gutta-percha and/or MTA. An oblique force of 300 N was applied and stress evaluations were carried out. In the MTA-filled resorption models, the stresses were distributed more homogeneously than the gutta-percha filled models, and the stress concentrations were lower in the remaining dentinal tissues. If the whole root is considered, the fully gutta-percha-filled models generated the highest stress values. Differences between the fully MTA-filled models and hybrid techniques were present only in the apical resorption models. Both the MTA and combination of MTA and gutta-percha can be suggested for use in clinical practice, in cases of internal root resorption cavity obturation.

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“…Studies investigating dental biomechanics under masticatory and traumatic loads have included PDL in FEA model due to its effect on tooth mobility as well as stress and distribution on periodontium. 22,23 All of these studies consider PDL as a 3D body enclosing a tiny and relatively thin volume lying between the tooth and the alveolar bone. 22,23 Inclusion of PDL as a 3D model results in complexity of the model even though PDL is not the main concern in most of the studies.…”

Section: Fea and Periodontal Ligamentmentioning

confidence: 99%

“…22,23 All of these studies consider PDL as a 3D body enclosing a tiny and relatively thin volume lying between the tooth and the alveolar bone. 22,23 Inclusion of PDL as a 3D model results in complexity of the model even though PDL is not the main concern in most of the studies. However, ignoring the ligament oversimplifies the models and results in inaccurate stress and strain distributions on periodontium along with improbable tooth movements.…”

Section: Fea and Periodontal Ligamentmentioning

confidence: 99%

Finite element analysis: A boon to dentistry

Trivedi

2014

Journal of Oral Biology and Craniofacial Research

157

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a b s t r a c tThe finite element analysis (FEA) is an upcoming and significant research tool for biomechanical analyses in biological research. It is an ultimate method for modeling complex structures and analyzing their mechanical properties. In Implantology, FEA has been used to study the stress patterns in various implant components and also in the peri-implant bone. It is also useful for studying the biomechanical properties of implants as well as IntroductionThe finite element analysis (FEA) is an upcoming and significant research tool for biomechanical analyses in biological research. It is an ultimate method for modeling complex structures and analyzing their mechanical properties. FEA has now become widely accepted as a non-invasive and excellent tool for studying the biomechanics and the influence of mechanical forces on the biological systems. It enables the visualization of superimposed structures, and the stipulation of the material properties of anatomic craniofacial structures. 1 It also allows to establish the location, magnitude, and direction of an applied force, as it may also assign stress points that can be theoretically measured. 2 Further, as it does not affect the physical properties of the analyzed materials it is easily repeatable. 2,3The finite element method (FEM) is basically a numerical method of analyzing stresses and deformations in the structures of any given geometry. The structure is discretized into the so called 'finite elements' connected through nodes. The type, arrangement and total number of elements impact the accuracy of the results. 4 The steps followed are generally constructing a finite element model, followed by specifying appropriate material properties, loading and boundary conditions so that the desired settings can be accurately simulated. Various engineering software packages are available to model and simulate the structure of interest may be implants or jawbone. Previously, when FEA was used in dentistry, various simplified assumptions were made regarding modeling geometry, load, boundaries and material properties.5 Such assumptions inevitably affected the analytical results. In the human body, there are individual variations with respect to E-mail address: shilpa.knp@gmail.com.Available online at www.sciencedirect.com ScienceDirect journal homepage: www.e lsevier.com/locate/jobcr j o u r n a l o f o r a l b i o l o g y a n d c r a n i o f a c i a l r e s e a r c h 4 ( 2 0 1 4 ) 2 0 0 e2 0 3http://dx

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Three-dimensional finite element analysis of the maxillary central incisor in two different situations of traumatic impact

Cited by 17 publications

References 25 publications

Biomechanical performance of an immature maxillary central incisor after revitalization: a finite element analysis

Biomechanical performance of an immature maxillary central incisor after revitalization: a finite element analysis

Stress distributions in internal resorption cavities restored with different materials at different root levels: A finite element analysis study

Finite element analysis: A boon to dentistry

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