Investigation of stress distribution within an endodontically treated tooth restored with different restorations

Huang, Ling; Nemoto, Reina; Okada, Daizo; Shin, Chiharu; Saleh, Omnia; Oishi, Yoshifumi; Takita, Mina; Nozaki, Kosuke; Komada, Wataru; Miura, Hiroyuki

doi:10.1016/j.jds.2022.01.015

Cited by 12 publications

(37 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In intact periodontium, both Maravic et al [49] (single simplified model of second upper premolar, intrusion) and Huang et al [50] (single simplified model of first lower premolar, intrusion) reported comparable qualitative but higher quantitative results.…”

Section: Discussionmentioning

confidence: 93%

“…Moreover, for validation, the quantitative results must be correlated with MHP, while qualitative results with acknowledged clinical data. Despite many FEA studies 49,50] investigating PDL and bone-implant interface, none approached these vital issues, thereby supplying questionable and contradictory results [5,6,9,10,16,48]. Only one older numerical FEA study [30] was found to make a limited distinction between brittleness and ductileness for the root canal filling, but without further development.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the recent FEA studies [28][29][30][31][32][33][34][35][36][37][38][39][40][41]43,44,[49][50][51] employed the hydrostatic pressure criterion (specially designed for liquids, with no shear stress), maximum principal S1 tensile stress, and minimum principal S3 compressive stress (for brittle-like materials) for the study of PDL (a ductile-like material), while the reported results invariably exceeded MHP even for light orthodontic forces (suggesting ischemic and resorptive risks that contradict clinical data).…”

Section: Introductionmentioning

confidence: 99%

“…Most of the above FEA studies employed included boundary conditions isotropy, linear elasticity, and homogeneity, despite the anatomical tissues being none of these, without addressing their suitability, adequacy, and influence over the results accuracy issues. Moreover, the applied forces were higher than 1.2 N (despite the above boundary conditions being correct only for small displacements and applied forces), while the investigated models were artificially created and anatomically simplified (i.e., lower number of nodes and elements with a higher global element size) 49,50]. It must be emphasized that, from a biomechanical point-of-view, linear elasticity and isotropy assumptions are correctly employed only if the applied forces are up to 1 N, and the non-homogeneity of materials is considered and addressed using the Tresca criterion.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigating the Ability of the Tooth and Surrounding Support Tissues to Absorb and Dissipate Orthodontic Loads during Periodontal Breakdown—Finite Elements Analysis

Moga,

Olteanu,

Delean

2024

Applied Sciences

View full text Add to dashboard Cite

Herein, the finite elements analysis (FEA) numerical study investigated the absorption–dissipation ability of dental tissues under orthodontic forces, during orthodontic movements and the periodontal breakdown process. Additionally, we investigated the correctness of FEA boundary assumptions up to 2.4 N of loads. Eighty-one models of the second lower premolar were subjected to 810 FEA numerical simulations using Tresca failure criterion under 0.6 N, 1.2 N, and 2.4 N and five movements: intrusion, extrusion, rotation, tipping, and translation. The results showed that both coronal dentine and enamel components had comparable high absorption–dissipation abilities, allowing for only a limited fraction of stresses to reach the circulatory sensitive tissues. Isotropy, linear elasticity, and homogeneity are correct when Tresca is employed up to 2.4 N. Forces of 0.6 N, 1.2 N, and 2.4 N displayed similar qualitative results for all movements and bone levels, while quantitative results doubled for 1.2 N and quadrupled for 2.4 N when compared with 0.6 N. FEA simulations showed 0.6–1.2 N to be safe for application in intact periodontium, while for reduced periodontium more than 0.6 N are prone to resorptive and ischemic risks. For reducing these risks, after 4 mm of bone loss, 0.2–0.6 N are recommended. Rotation and translation were the most stressful followed by tipping.

show abstract

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigating the Ability of the Tooth and Surrounding Support Tissues to Absorb and Dissipate Orthodontic Loads during Periodontal Breakdown—Finite Elements Analysis

Moga,

Olteanu,

Delean

2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Finite element analysis (FEM) tools are well suited for this purpose. FEM has become firmly established in the medical practice of solving dental problems [ 19 , 20 , 21 , 22 , 23 ]. FEM also makes it possible to evaluate the effectiveness of different treatment tactics and material choices at the treatment planning stage [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Mechanical Behaviour of Wedge-Shaped Defect Filling Materials

et al. 2022

View full text Add to dashboard Cite

This paper deals with direct restorations of teeth with non-carious cervical lesions (NCCL). NCCL defects are capable of gradual growth and are accompanied by the degradation of the surrounding tissue. Direct restorative treatment, in which the cavity is filled with a cementing agent, is considered to be an accessible and common treatment option. The study included simulations of the teeth without lesions, the teeth with V and U lesions and the tooth-restorative system. Parameterised numerical tooth models were constructed. Two cases with defect depths of 0.8 mm and ~1.7 mm and three variants with fillet radii of the defect end of 0.1, 0.2 and 0.3 mm were considered. The effect of two biomaterials for restorations was studied, namely Herculite XRV (Kerr Corp, Orange, CA, USA) and Charisma (Heraeus Kulzer GmbH, Hanau, Germany). The models were deformed with a vertical load of 100 to 1000 N from the antagonist tooth. The tooth-restorative system was considered, taking into consideration the contact interaction in the interface areas with the tooth tissues. Within the limits of the research, the character of the distribution of the deformation characteristics and their dependence on the level of loading, the depth of the defect and the radius of the curvature of the “wedge” were established.

show abstract

Residual dentin thickness and biomechanical performance of post-and-core-restored mandibular premolars: A finite element analysis study

Sun,

Wang,

et al. 2024

The Journal of Prosthetic Dentistry

View full text Add to dashboard Cite

Investigation of stress distribution within an endodontically treated tooth restored with different restorations

Cited by 12 publications

References 40 publications

Investigating the Ability of the Tooth and Surrounding Support Tissues to Absorb and Dissipate Orthodontic Loads during Periodontal Breakdown—Finite Elements Analysis

Investigating the Ability of the Tooth and Surrounding Support Tissues to Absorb and Dissipate Orthodontic Loads during Periodontal Breakdown—Finite Elements Analysis

Numerical Study of the Mechanical Behaviour of Wedge-Shaped Defect Filling Materials

Residual dentin thickness and biomechanical performance of post-and-core-restored mandibular premolars: A finite element analysis study

Contact Info

Product

Resources

About