Three-dimensional finite element analysis of the composite and compomer onlays in primary molars

Kırzıoğlu, Zühal; Ceyhan, Derya; Şengül, Fatih; Altun, Ayse Ceren

doi:10.1080/10255842.2019.1604951

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…Con el gran avance de las resinas, las incrustaciones estéticas se consideran una buena opción para el tratamiento de cavidades amplias [17][18][19] .…”

Section: Discussionunclassified

Estética en odontopediatría: restauración indirecta con resina compuesta en dentición primaria

et al. 2020

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El objetivo del presente trabajo fue realizar una restauración indirecta de resina de fotocurado de clase II en un segundo molar primario y presentar los pasos operatorios realizados como una alternativa estética terapéutica. Paciente de 8 años de edad de sexo femenino asistió para su rehabilitación integral a la Especialidad de Odontopediatría de la Facultad de Odontología de la UNNE. Al examen clínico la pieza dentaria 6.5 presentó una caries inactiva de Clase II compleja, en la cual dentro del plan de tratamiento rehabilitador se decidió realizar una restauración indirecta de resina de fotocurado. Las restauraciones indirectas para molares con resina de fotocurado confeccionado extraoralmente, son una posible alternativa estética, permitiendo optimizar las condiciones clínicas de trabajo y mejorar las propiedades finales del material restaurador.

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“…Con el gran avance de las resinas, las incrustaciones estéticas se consideran una buena opción para el tratamiento de cavidades amplias [17][18][19] .…”

Section: Discussionunclassified

Estética en odontopediatría: restauración indirecta con resina compuesta en dentición primaria

et al. 2020

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“…After approval by the Institutional Ethics and Research Committee of Científica del Sur University with registration number 421-2019-POS8, based on the background, the study was carried out using the three-dimensional analysis method of finite elements (29).…”

Section: Methodsmentioning

confidence: 99%

“…Despite the fact that, the literature shows many forms of preparation for occlusal veneers in worn posterior teeth (15,19,28,29), no information was found on how the type of finish line influences the level of stress accumulated on the occlusal veneer. Therefore, the aim of the present study is to evaluate the stress values in LD and CR occlusal veneers with and without a beveled finish line, when receiving vertical forces to the center of the tabletop and tangential forces close to the finish line.…”

Section: Introductionmentioning

confidence: 99%

Stress Distribution in Occlusal Veneers with Different Finish Lines When Applying Vertical and Tangential Forces

Fernandez

2022

Odovtos - Int J Dent Sc

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To evaluate stress distribution when applying vertical and tangential forces to 1mm thick occlusal veneers with different finish lines preparations, using the finite element method. One extracted third molar was prepared for occlusal veneers, firstly without any bevel. It was scanned in order to design two groups of lithium disilicate (G1A, G2A) and composite resin (G1B, G2B) occlusal veneers. Then, the third molar preparation was modified, beveling the finish line and it was subsequently scanned again to design the occlusal veneer groups with bevel (LD: G3A, G4A and CR: G3B, G4B). The four groups were subjected to different forces (400 N vertical and 900 N tangential). At 400 N, the non-beveled veneers showed slightly higher Von Mises stress values (G1A: 783 MPa and G1B 736.5 MPa) than the beveled veneers (G3A: 685.7 MPa and G3B: 675.8 MPa). However, when 900 N tangential forces were applied, the beveled occlusal veneers showed higher Von Mises stress values (G4A: 4297 MPa and G4B: 4133 MPa) than the non-beveled occlusal veneers (G2A: 2581.1 MPa and G2B: 3519.1 MPa). Furthermore, it was observed that the tissue under the occlusal veneers with bevel showed higher Von Mises stress values than the models without any bevel. Beveled and non-beveled occlusal veneers of lithium disilicate and composite resin presented similar stress distribution values when vertical forces of 400 N were applied; whereas with tangential forces of 900 N applied near to the finish line, the beveled groups presented notably higher stress values than the non-beveled groups. However, both finish line preparations presented adequate values for possible clinical performance.

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“…All the anatomical structures were homogeneous and isotropic linear elastic materials [5], and the material mechanical parameters of all anatomical structures were shown in Table 2. Three-dimensional nite element biomechanical analysis of mandibles…”

Section: Experimental Preset Conditionsmentioning

confidence: 99%

Timing Selection for Loosened Tooth Fixation Based on Degree of Alveolar Bone Resorption – a Finite Element Analysis

Ding

Hao

et al. 2022

Preprint

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Objective: To make a three-dimensional finite element biomechanical analysis of mandibular dentition and its bone interface with varying degrees of alveolar bone resorption, and evaluate timing of fixation to prevent tooth loosening. Methods: Volunteer CT images in combination with periodontitis classification were used to construct a finite element model of mandibles with varying degrees of alveolar bone resorption. By simulating occlusal force loading, biomechanical analysis was made on the periodontal membrane, tooth root and surrounding bone interface of mandibular dentition with varying degrees of alveolar bone resorption. Results: A finite element model of the mandible with varying degrees of alveolar bone resorption was established. The von Mises stress value of the periodontal cortical bone, cancellous bone, root surface and periodontal membrane of mandibular dentition was positively related with the degree of alveolar bone resorption, and the von Mises stress at the interface between the periodontal membrane and tooth root was increased significantly in moderate to severe periodontitis models. The von Mises stress at the interface between the periodontal cortical bone and cancellous bone was increased significantly in the severe periodontitis model. During oblique loading, the stress value at each interface was significantly higher than during vertical loading. Conclusion: The model established in this study can effectively realize a biomechanical study of a mandible with varying degrees of alveolar bone resorption. In clinical treatment of teeth with moderate to severe periodontitis, loosened tooth fixation can be used to prevent tooth loosening.

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Three-dimensional finite element analysis of the composite and compomer onlays in primary molars

Cited by 10 publications

References 15 publications

Estética en odontopediatría: restauración indirecta con resina compuesta en dentición primaria

Estética en odontopediatría: restauración indirecta con resina compuesta en dentición primaria

Stress Distribution in Occlusal Veneers with Different Finish Lines When Applying Vertical and Tangential Forces

Timing Selection for Loosened Tooth Fixation Based on Degree of Alveolar Bone Resorption – a Finite Element Analysis

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