Construction of a three-dimensional finite element model of maxillary first molar and it′s supporting structures

Ms, Begum; Dinesh, M. R.; Kf, Tan; Jairaj,; Khalid, Kiran Zarnab; Vp, Singh

doi:10.4103/0975-7406.163496

Cited by 6 publications

(2 citation statements)

References 20 publications

(23 reference statements)

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“…It has proved to be an adaptable, accurate, flexible and less time‐consuming tool for dental biomechanical study . In a 3D FEA model of a tooth‐periodontium system with complicated geometry, it is convenient to apply mechanical forces at any regions and in any directions . FEA has provided essential new knowledge for tooth restoration , prosthetic and orthodontic treatment , implant design , tooth fracture and periodontal trauma analysis, as well as the biomechanics of the mandibular system .…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis on tooth and periodontal stress under simulated occlusal loads

Zhang

Cui

et al. 2017

J of Oral Rehabilitation

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The tooth stress elicited by occluding contact represents critical biomechanical information about dental health during chewing. Effects of occlusal contact on tooth stress remain obscure. In this study, a mandibular first molar finite element model was built from CT images. The effects of area size, location and direction of occlusal loading on both tooth and periodontal stresses were analysed. Results showed tooth and periodontal stress had drastically different patterns. Tooth stress value was much higher than periodontal stress value under the same task. Tooth stress concentration area and its value decreased from outside to inside. The Maximum Tooth Stress (MTS) always occurred at the loading site and a larger loading area elicited a smaller MTS value. The variation of MTS was larger when the fossa bottoms were inclined loaded than when the cusp tips were inclined loaded, larger when lingually loaded than when buccally loaded and larger when mesially loaded than when distally loaded. Distal loadings generally induced smaller Maximum Periodontal Stress (MPS) variations than the mesial loadings. These findings indicated exposure of the rational site(s) to occlusal contact should be helpful to achieve proper tooth and periodontal stress, thus to diminish loading associated structure problems.

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Section: Introductionmentioning

confidence: 99%

Finite element analysis on tooth and periodontal stress under simulated occlusal loads

Zhang

Cui

et al. 2017

J of Oral Rehabilitation

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“…El MEF, también llamado modelo in silico , muestra diseños computarizados clínicos relevantes por la variedad de morfología y las propiedades físicas de las estructuras modeladas. Asimismo, permite una previsión más exacta y precisa del comportamiento clínico de las líneas de terminación junto a una corona de disilicato de litio 26 . El MEF aplicado por Doley en un primer molar inferior con oclusión equilibrada mostró una resistencia de 300 N a 450 N 27 ante la fuerza ejercida sobre toda la superficie oclusal.…”

Section: Discussionunclassified

Compressive stress in three types of finishing lines with lithium disilicate crowns in permanent teeth: finite element analysis

Yanapa Márquez,

Chávez-Méndez

2024

Rev Cient Odontol (Lima)

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Introduction: In oral rehabilitation, the use of ceramic restorations is widely accepted due to its aesthetic capacity to mimic the naturalness of the dental tissue, provide longevity of the material, and present a greater marginal fit compared to crowns with a metal structure. Termination lines are biological preparations whose function is to minimize the cervical opening of the marginal seal. Consequently, analyzing the behavior of restorative materials under compressive forces decreases the risk of fracture and increases the success of the treatment. Objective: To compare the compressive stresses of lithium disilicate crowns with three different finishing lines. Methodology: In silico study of the simulation of a dental preparation on a lower right first molar with chamfer (0.6 mm), shoulder (0.5 mm) and deep chamfer (0.5 mm) finish lines. Using the SolidWorks®️ version 2017 software, the maximum stresses, minimum stresses, and location of the compressive force were collected on the Megapascal (Mpa) measurement scale. Results: The chamfer type termination line (0.6mm) obtained a lower compressive stress compared to the other two shoulder type termination lines (0.5mm) and deep chamfer (0.5mm). Conclusions: It was shown that the chamfer type finishing line (0.6mm) presented a better force distribution, determining greater reliability in the selection of this finishing line with the use of a lithium disilicate crown in a unitary manner.

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Comparative study of biomechanical effects between two types of 2 × 4 techniques employing a rocking-chair archwire: a three-dimensional finite element analysis

Wang

et al. 2023

Clin Oral Invest

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Construction of a three-dimensional finite element model of maxillary first molar and it′s supporting structures

Cited by 6 publications

References 20 publications

Finite element analysis on tooth and periodontal stress under simulated occlusal loads

Finite element analysis on tooth and periodontal stress under simulated occlusal loads

Compressive stress in three types of finishing lines with lithium disilicate crowns in permanent teeth: finite element analysis

Comparative study of biomechanical effects between two types of 2 × 4 techniques employing a rocking-chair archwire: a three-dimensional finite element analysis

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