Finite Element Analysis and Its Applications in Dentistry

Bandela, Vinod; Kanaparthi, Saraswathi

doi:10.5772/intechopen.94064

Cited by 15 publications

(26 citation statements)

References 51 publications

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“…The influence of many factors on the biomechanical behavior of implants has been studied, such as implant design, properties of implant material, number and size (length, diameter) of implants, quality and quantity of surrounding bone, and implantation surgical technique. 16 FEA is based on finding a solution to a complex physical problem by dividing a geometric model into a finite number of elements, in which the filed variables can be interpolated with the involvement of specific physical properties and geometric functions. 17,18 FEA consists of three principle steps: preprocessing, processing, and postprocessing.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Study of Stress Distribution with Tooth-Supported Mandibular Overdenture Retained by Ball Attachments or Resilient Telescopic Crowns

AL-Kordy

Al-Saadi

2022

Eur J Dent

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Objective The removable partial denture must keep health of the remaining teeth and the supporting tissues through the distribution of chewing forces on the abutment teeth and alveolar process.This study aimed to evaluate stress distribution with canines-supported mandibular overdenture retained by two different attachment types: ball attachments or resilient telescopic crowns. Materials and Methods Two 3-dimensional finite element models consisting of the cortical mandible bone, cancellous mandible bone, oral mucosa, canines, periodontal ligaments, the two attachment types, and overdenture were simulated. The models were imported into the mathematical analysis software Ansys Workbench V 15.0. All materials were considered to be homogeneous, isotropic, and linearly elastic. A vertical bilateral load of 120 N was applied to the central fossa of the first molars. The von Mises stress was calculated for canines, cortical, and cancellous bone. Results The maximum von Mises stress of the ball attachments model was 35.61, 4.28, 7.82, and 1.29 MPa for canines, cortical alveolar bone of canines, cortical alveolar bone at the distal end of the overdenture, and cancellous alveolar bone of canines, respectively. The maximum von Mises stress of the resilient telescopic crowns model was 39.22, 4.74, 7.06, and 1.05 MPa for canines, cortical alveolar bone of canines, cortical alveolar bone at the distal end of the overdenture, and cancellous alveolar bone of canines, respectively. Conclusion Resilient telescopic crowns distribute the stresses between canines, alveolar bone of canines, and overdenture supporting alveolar bone. Ball attachments transfer less stress to the canines and cortical alveolar bone of the canines, but more stress to the cancellous alveolar bone of canines and alveolar bone at distal end of the overdenture. Resilient telescopic crowns are preferred over ball attachment when the abutment teeth have good periodontal support.

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Section: Introductionmentioning

confidence: 99%

Finite Element Study of Stress Distribution with Tooth-Supported Mandibular Overdenture Retained by Ball Attachments or Resilient Telescopic Crowns

AL-Kordy

Al-Saadi

2022

Eur J Dent

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“…Low and high densities for spongy bone were de ned from CT scans as 150 and 850 Houns eld units [HU]. [5,6] The nite element analysis has gained popularity in dentistry due to its ability to model complex geometries and provide important information regarding the distributions of stresses/strains in prosthetic parts, surrounding tissue, and bone [7]. In this study, the nite element analysis was utilized to investigate the effect of using (CFR-PEEK 30&60%, PEKK, and PEEK) frameworks as alternatives to titanium in the xed prosthesis, using different densities of spongy bone.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Stresses on Mandible Bone and Prosthetic Parts in Fixed Prosthesis by Utilizing CFR-PEEK, PEKK and PEEK Frameworks

Shash

El-Wakad

Dohiem

2022

Preprint

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Introduction: Fixed prosthesis is an appropriate solution for edentulous patients. In fixed prostheses, following “All on four”, titanium frameworks are commonly used to support the implants. However, the limitations of titanium have prompted the researchers to search for alternative materials (e.g. polymers). The success of fixed prosthesis is predicted to be influenced also by bone quality, particularly spongy bone density. Purpose: This study applied finite element investigations to evaluate the stress distribution in the parts of fixed prosthesis and the surrounding bone tissue, using polymeric frameworks in place of titanium, and different densities of spongy bone.Materials &Methods: Fixed prosthesis was constructed on edentulous mandible, then different frameworks (CFR-PEEK 60%, CFR-PEEK30%, PEKK, and PEEK) were stimulated instead of titanium, using different densities of spongy bone, under 300N unilateral force. Results: The choice of framework material depended on the density of spongy bone. Moreover, PEEK framework showed the lowest stress values on bone tissues and the highest stress values on the mucosa. Conclusions: All frameworks could be used in the fixed prosthesis, in the cases of normal and high densities of spongy bone. In low-density case, soft frameworks (PEKK & PEEK) were recommended to reduce the stresses generated on bone tissues.

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“…Because testing biomechanical parameters is not possible in the oral cavity without affecting the integrity of hard and soft tissues, the finite element method (FEM) is a useful way to appreciate the strengths and weaknesses of a prosthetic device and the stress induced into the dental support in various circumstances [8].…”

Section: Introductionmentioning

confidence: 99%

Inlay-Retained Dental Bridges—A Finite Element Analysis

et al. 2021

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Inlay-retained dental bridges can be a viable minimally invasive alternative when patients reject the idea of implant therapy or conventional retained full-coverage fixed dental prostheses, which require more tooth preparation. Inlay-retained dental bridges are indicated in patients with good oral hygiene, low susceptibility to caries, and a minimum coronal tooth height of 5 mm. The present study aims to evaluate, through the finite element method (FEM), the stability of these types of dental bridges and the stresses on the supporting teeth, under the action of masticatory forces. The analysis revealed the distribution of the load on the bridge elements and on the retainers, highlighting the areas of maximum pressure. The results of our study demonstrate that the stress determined by the loading force cannot cause damage to the prosthetic device or to abutment teeth. Thus, it can be considered an optimal economical solution for treating class III Kennedy edentation in young patients or as a provisional pre-implant rehabilitation option. However, special attention must be paid to its design, especially in the connection area between the bridge elements, because the connectors and the retainers represent the weakest parts.

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Finite Element Analysis and Its Applications in Dentistry

Cited by 15 publications

References 51 publications

Finite Element Study of Stress Distribution with Tooth-Supported Mandibular Overdenture Retained by Ball Attachments or Resilient Telescopic Crowns

Finite Element Study of Stress Distribution with Tooth-Supported Mandibular Overdenture Retained by Ball Attachments or Resilient Telescopic Crowns

Evaluation of Stresses on Mandible Bone and Prosthetic Parts in Fixed Prosthesis by Utilizing CFR-PEEK, PEKK and PEEK Frameworks

Inlay-Retained Dental Bridges—A Finite Element Analysis

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