Finite element modeling of superelastic nickel–titanium orthodontic wires

Naceur, Ines Ben; Charfi, Amin; Bouraoui, Tarak; Elleuch, Khaled

doi:10.1016/j.jbiomech.2014.10.007

Cited by 27 publications

(9 citation statements)

References 24 publications

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“…Cortical bone was sculpted according to the early mixed dentition tissue volume given by Farnsworth et al, [9] the model in early mixed dentition would differ from a model in late mixed dentition in the number of teeth erupted, the amount of root formation and porosity of the alveolus. The width of periodontal ligament was 0.2 mm similar to Kronfeld, [10] and the width of the mid-palatal sutures was 0.5 mm according to Fricke-Zech et al [11] The mechanical properties of the, tooth, [12] suture, [12] cortical bone, [12] cancellous bone, [12] periodontal ligament, [12] stainless steel, [13] and nickel titanium [14] in this model were similar according to the experimental data given in previous studies as presented in Table 1.…”

Section: Methodsmentioning

confidence: 79%

“…Points B and C separated this A-D line into three equivalent parts [Figure 3]. Poisson's ratio Periodontal ligament [12] 50 0.49 Cancellous bone [12] 7.9×10 3 0.30 Cortical bone [12] 1.37×10 4 0.30 Suture [12] 7 0.40 Tooth [12] 2.07×10 4 0.30 Stainless steel [13] 2.1×10 5 0.3 Nickel titanium [14] 44×10 3 0.33 followed by the lateral pterygoid plate and maxillary tuberosity in Hyrax model. Sagittally cephalometric point A, maxillary tuberosity, posterior nasal spine (PNS), anterior nasal spine (ANS) and the maxillary process of zygomatic bone showed backward displacement rest all the structure showed forward movement in both the NPE2 and Hyrax model.…”

Section: Methodsmentioning

confidence: 99%

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The Analysis of Three-dimensional Effects of Nitanium Palatal Expander 2 and Hyrax Maxillary Expansion Appliances on Craniofacial Structures: A Finite Element Study

Kumar

Ghafoor

2017

J Indian Orthod Soc

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Objectives:To analyze three-dimensional effects of stress distribution and displacement on the craniofacial structures, following the application of forces from Nitanium Palatal Expander 2 (NPE2) and Hyrax appliance in early mixed dentition period using finite element analysis. Materials and Methods: Three-dimensional finite element models of the young dried human skull, NPE2 and Hyrax were constructed, and the initial activation of the expanders was simulated to carry out the analysis and to evaluate the von misses stresses and displacement on the craniofacial structures. Results: Both the models demonstrated the highest stresses at the mid-palatal suture, with maximum posterior dislocation. The inferior nasal floor showed highest downward displacement and point A showed outward, backward, and upward displacement in both the models. The pattern of stress distribution was almost similar in both the groups, but NPE2 revealed lower magnitude stresses than Hyrax. The cusp of the erupting canine and the mesiobuccal cusp of the second molar showed outward, backward, and downward displacement signifying eruption pattern following maxillary expansion. Conclusions: Nickel titanium palatal expander-2 and Hyrax produced similar stress pattern in early mixed dentition period finite element model. We conclude from this finite element method study that NPE2 is equally effective as Hyrax when used in early mixed dentition period as it exhibits orthopedic nature of expansion with minimal residual stresses in the craniofacial structures.

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Section: Methodsmentioning

confidence: 79%

Section: Methodsmentioning

confidence: 99%

The Analysis of Three-dimensional Effects of Nitanium Palatal Expander 2 and Hyrax Maxillary Expansion Appliances on Craniofacial Structures: A Finite Element Study

Kumar

Ghafoor

2017

J Indian Orthod Soc

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“… Scatter plot showing elastic modulus of the martensite and austenite phases plotted with the Ni content, from past published sources [ 1 , 34 , 36 , 38 , 40 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ]. …”

Section: Figurementioning

confidence: 99%

Influence of Structural Porosity and Martensite Evolution on Mechanical Characteristics of Nitinol via In-Silico Finite Element Approach

et al. 2022

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Nitinol (NiTi) alloys are gaining extensive attention due to their excellent mechanical, superelasticity, and biocompatibility properties. It is difficult to model the complex mechanical behavior of NiTi alloys due to the solid-state diffusionless phase transformations, and the differing elasticity and plasticity presenting from these two phases. In this work, an Auricchio finite element (FE) model was used to model the mechanical behavior of superelastic NiTi and was validated with experimental data from literature. A Representative Volume Element (RVE) was used to simulate the NiTi microstructure, and a microscale study was performed to understand how the evolution of martensite phase from austenite affects the response of the material upon loading. Laser Powder Bed Fusion (L-PBF) is an effective way to build complex NiTi components. Porosity being one of the major defects in Laser Powder Bed Fusion (L-PBF) processes, the model was used to correlate the macroscale effect of porosity (1.4–83.4%) with structural stiffness, dissipated energy during phase transformations, and damping properties. The results collectively summarize the effectiveness of the Auricchio model and show that this model can aid engineers to plan NiTi processing and operational parameters, for example for heat pump, medical implant, actuator, and shock absorption applications.

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“…Moreover, during initial stage of treatment, the orthodontist usually inserts NiTi wire in the bracket slots and allows it to react by itself until it resumes its initial arch shape. Some researchers have carried out numerical bending tests to evaluate the recovery force of the wire during unloading without taking into account the bone remodeling process (Naceur et al, 2014;Elkhal Letaief et al, 2018;Razali and Mahmud, 2019) . The effect of superelastic wire deactivation has not been considered to simulate long-term orthodontic tooth correction (Gannoun et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Simulation of superelastic NiTi wire force application on orthodontic alignment case

Fathallah

Hassine²,

Alamri³

et al. 2021

JER is an international, peer-reviewed journal that publishes f

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Nickel Titanium (NiTi) orthodontic wires are the most accurate initial wires to align the teeth by producing the less painful bone remodeling. Coupling their mechanical response, while they are engaged in the oral cavity, with the bone remodeling would permit to elucidate the reaction and the effect of this wire during the orthodontic tooth alignment. Therefore, A two-dimensional numerical long-term orthodontic tooth correction was performed to simulate a tooth intrusion movement. This simulation was achieved by taking into consideration the effect of an orthodontic appliance action on three multiteeth models. The superelastic behavior of the NiTi wire was integrated in the computer software ABAQUS via a UMAT subroutine. The orthodontic arch was initially deformed to simulate its insertion in brackets and then unloaded to apply an orthodontic load and produce initial tooth displacement. A bone remodeling process was implemented to displace the teeth depending on the strain within the periodontal ligament. The results were obtained for a treatment period of 30 days. The NiTi wire was able to recuperate its initial position, and the teeth were aligned. The numerical results of the teeth displacement were in agreement with what is expected to be produced during the alignment phase.

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Finite element modeling of superelastic nickel–titanium orthodontic wires

Cited by 27 publications

References 24 publications

The Analysis of Three-dimensional Effects of Nitanium Palatal Expander 2 and Hyrax Maxillary Expansion Appliances on Craniofacial Structures: A Finite Element Study

The Analysis of Three-dimensional Effects of Nitanium Palatal Expander 2 and Hyrax Maxillary Expansion Appliances on Craniofacial Structures: A Finite Element Study

Influence of Structural Porosity and Martensite Evolution on Mechanical Characteristics of Nitinol via In-Silico Finite Element Approach

Simulation of superelastic NiTi wire force application on orthodontic alignment case

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