The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: a three-dimensional finite element study

Eskitaşçıoğlu, Gürcan; Üşümez, Aslıhan; Sevimay, Müjde; Soykan, Emel; Ünsal, Elif

doi:10.1016/j.prosdent.2003.10.018

Cited by 184 publications

(139 citation statements)

References 18 publications

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“…However, the physical properties of biologic structures are only approximates, since all materials are considered homogeneous and have a linear response to stress. Actually, in a living organism, the response to these structures to stress is more complex, For instance, it is well described that cortical bone of the mandible is transversely isotropic and inhomogeneous 18) . In addition, the stress distribution patterns simulated may be different depending on the materials and properties assigned to each layer of the model and the model used in the experiments 19,20) .…”

Section: ⅳ Discussionmentioning

confidence: 99%

Finite element analysis of maxillary central incisors restored with various post-and-core applications

Seo

Shon

Lee

et al. 2009

J Korean Acad Conserv Dent

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The purpose of this study was to investigate the effect of rigidity of post core systems on stress distribution by the theoretical technique, finite element stress-analysis method. Three-dimensional finite element models simulating an endodontically treated maxillary central incisor restored with a zirconia ceramic crown were prepared and 1.5 mm ferrule height was provided. Each model contained cortical bone, trabecular bone, periodontal ligament, 4 mm apical root canal filling, and post-and-core. Six combinations of three parallel type post (zirconia ceramic, glass fiber, and stainless steel) and two core (Paracore and Tetric ceram) materials were evaluated, respectively. A 50 N static occlusal load was applied to the palatal surface of the crown with a 60� angle to the long axis of the tooth. The differences in stress transfer characteristics of the models were analyzed. von Mises stresses were chosen for presentation of results and maximum displacement and hydrostatic pressure were also calculated. An increase of the elastic modulus of the post material increased the stress, but shifted the maximum stress location from the dentin surface to the post material. Buccal side of cervical region (junction of core and crown) of the glass fiber post restored tooth was subjected to the highest stress concentration. Maximum von Mises stress in the remaining radicular tooth structure for low elastic modulus resin core (29.21 MPa) was slightly higher than that for high elastic modulus resin core (29.14 MPa) in case of glass fiber post. Maximum displacement of glass fiber post restored tooth was higher than that of zirconia ceramic or stainless steel post restored tooth. [J Kor Acad Cons Dent 34(4): [324][325][326][327][328][329][330][331][332] 2009]

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Section: ⅳ Discussionmentioning

confidence: 99%

Finite element analysis of maxillary central incisors restored with various post-and-core applications

Seo

Shon

Lee

et al. 2009

J Korean Acad Conserv Dent

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“…4,5 It is showing overwhelming capability and versatility in its application in dentistry. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] This paper reviews past and current practices in the finite element analysis of dental implants. The achievements and limitations of the existing analysis are discussed and the gap in research is identified.…”

Section: Introductionmentioning

confidence: 99%

Application of the finite element method in dental implant research

Staden

Guan

Loo

2006

Computer Methods in Biomechanics and Biomedical Engineering

212

139

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This article provides a review of the achievements and advancements in dental technology brought about by computer-aided design and the all powerful finite element method of analysis. The scope of the review covers dental implants, jawbone surrounding the implant and the biomechanical implant and jawbone interaction. Prevailing assumptions made in the published finite element analysis, and their limitations are discussed in some detail which helps identify the gaps in research as well as future research direction.

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“…CoCr was used as superstructure material. In previous literature [10] it was stated that Co-Cr alloy reduced the maximal and effective stress. The loading condition, implant location and supra structure was similar in both the models and the difference being length of the abutment which is 5mm in normal model and 12 mm in reconstructed model.…”

Section: Materials Properties and Meshingmentioning

confidence: 95%

“…The corresponding elastic properties such as young's modulus (E) and Poisson ratio (µ) were determined from the literature [10] and are summarized in [Table/ Fig-2]. All interfaces between the materials were assumed to be bonded or osseo integrated.…”

Section: Materials Properties and Meshingmentioning

confidence: 99%

Comparison of Stresses Around Dental Implants Placed in Normal and Fibula Reconstructed Mandibular Models using Finite Element Analysis

Nesappan

Ariga

2014

JCDR

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Purpose: This study was formulated to evaluate and compare stresses around endosseous implants in various normal and fibula reconstructed mandibular models using finite element analysis method. Materials and Methods:CT scan data of a completely edentulous patient and a fibula reconstructed patient was made and the Dicom images were used to design 3-D mandibular models using software. Based on the information from the scan data, various types of reconstructed FEA models were made. Implants (fixtures) and superstructures were then embedded in each model and Von Mises stress around the neck of each implant under a vertical loading of 200 N and Horizontal load of 50 N was calculated using finite element structural analysis software. The results were compared between the reconstructed mandible and their respective normal mandible. Results:Higher stress values were obtained for all the reconstructed types under horizontal loading and in reconstructed models involving larger area of reconstruction the stress were more. In the models involving smaller area of reconstruction like symphysis alone or body alone there is no significant change in the stress values on vertical loading. Conclusion:Stresses were comparatively smaller in mandibles involving a smaller area of reconstruction. Hence, fixed prosthesis could be advised and a bar retained over denture for reconstruction for larger area of reconstruction.Thiyaneswaran nesappan 1 , padma ariga 2

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The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: a three-dimensional finite element study

Cited by 184 publications

References 18 publications

Finite element analysis of maxillary central incisors restored with various post-and-core applications

Finite element analysis of maxillary central incisors restored with various post-and-core applications

Application of the finite element method in dental implant research

Comparison of Stresses Around Dental Implants Placed in Normal and Fibula Reconstructed Mandibular Models using Finite Element Analysis

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