scholarly journals Construction of Customized Palatal Orthodontic Devices on Skeletal Anchorage Using Biomechanical Modeling

2022 ◽  
Vol 9 (1) ◽  
pp. 12
Author(s):  
Dmitriy Suetenkov ◽  
Dmitriy Ivanov ◽  
Aleksandr Dol ◽  
Ekaterina Diachkova ◽  
Yuriy Vasil’ev ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Treatment Success ◽  
Optimal Placement ◽  
Skeletal Anchorage ◽  
Biomechanical Modeling ◽  
Mini Implants ◽  
Orthodontic Implants ◽  
Orthodontic Device ◽  
The Stability ◽  
Orthodontic Devices

Orthodontic implants have been developed for the implementation of skeletal anchorage and are effectively used in the design of individual orthodontic devices. However, despite a significant amount of clinical research, the biomechanical aspects of the use of skeletal anchorage have not been adequately studied. The aim of this work was to numerically investigate the stress–strain state of the developed palatal orthodontic device supported by mini-implants. Four possible options for the placement of mini-implants in the bone were analyzed. The effect of a chewing load of 100 N on the bite plane was investigated. The study was carried out using biomechanical modeling based on the finite element method. The installation of the palatal orthodontic device fixed on mini-implants with an individual bite plane positioned on was simulated. The dependence of equivalent stresses and deformation changes on the number and location of the supporting mini-implants of the palatal orthodontic device was investigated. Two materials (titanium alloy and stainless steel) of the palatal orthodontic device were also investigated. The choice of a successful treatment option was based on the developed biomechanical criteria for assessing the surgical treatment success. Application of the criteria made it possible to estimate the stability and strength of fixation of each of the considered mini-implants installation options. As a result, options for the mini-implants optimal placement were identified (the first and the fourth which provide distributed front and side support of the device), as well as the preferred material (titanium alloy) for the manufacture of the palatal orthodontic device.

scholarly journals A Novel Approach Using Customized Miniplates as Skeletal Anchorage Devices in Growing Class III Patients: A Case Report

2020 ◽  
Vol 10 (12) ◽  
pp. 4067
Author(s):  
Ji-In Ryu ◽  
Seoung-Won Cho ◽  
So-Hee Oh ◽  
In-Young Park ◽  
Ju-Won Kim ◽  
...  
Keyword(s):  
Case Report ◽  
Primary Teeth ◽  
Computer Assisted ◽  
Skeletal Anchorage ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mini Implants ◽  
Novel Approach ◽  
The Stability ◽  
Tooth Buds

Facemasks using tooth-borne anchorages have been used primarily for the treatment of Class III malocclusion with maxillary undergrowth. However, when using a tooth as an anchorage, if the stability of the tooth used as an anchor is weak, the anchoring function may fail as the tooth tilts. Meanwhile, the use of skeletal anchorages such as implants, mini-implants, and mini-plates has been claimed to minimize the side effects of using dental anchorage. This case report describes the treatment of a six-year-old male patient with Class III malocclusion, presenting maxillary undergrowth and mandibular prognathism. Due to the mobility of the anchoring primary teeth, a device using dental anchorage was replaced with that using customized skeletal anchorage for the treatment. Customized guides and miniplates for the surgery were fabricated in advance through a computer-assisted system, in order to avoid possible damage to the adjacent tooth buds. The customized plates were accurately and passively placed on the intended part, showing the desired outcome.

scholarly journals Contributions to the study of orthodontic mini-implants anchorage

2015 ◽  
Vol 61 (1) ◽  
pp. 5-9
Author(s):  
Alexandru Mircea Nicolau ◽  
◽  
Elisabeta Vasilescu ◽  
Viorica Milicescu ◽  
Vlad Gabriel Vasilescu ◽  
...  
Keyword(s):  
Implant Design ◽  
Space Thickness ◽  
Orthodontic Anchorage ◽  
Special Equipment ◽  
Mini Implants ◽  
Temporary Anchorage Devices ◽  
Orthodontic Implants ◽  
Main Factors ◽  
The Stability

Orthodontic implants, called mini-implants or temporary anchorage devices, have been designed to meet the needs of orthodontic biomechanics. Having the goal of providing resistance to unwanted tooth movements, anchorage is chosen according to the main factors that influence the quality of orthodontic care. Of these, local factors such as bone quality, space, thickness of the gum, etc. should be correlated with those watching the mini-implant design, geometric and dimensional factors that are taken into account for the stability of the mini-implant. This paper summarizes some of the results of the research aimed to analyze the main factors of stability of mini-implants used for orthodontic anchorage and how to measure it using the mini-implants (design shape and dimensions) and a special equipment for testing the tensile strenghth.

scholarly journals Risk factors for orthodontic mini-implants in skeletal anchorage biological stability: a systematic literature review and meta-analysis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
María Dolores Casaña-Ruiz ◽  
Carlos Bellot-Arcís ◽  
Vanessa Paredes-Gallardo ◽  
Verónica García-Sanz ◽  
José Manuel Almerich-Silla ◽  
...  
Keyword(s):  
Risk Factors ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Meta Analysis ◽  
Skeletal Anchorage ◽  
Biological Stability ◽  
Mini Implants

Influence of Quenching Parameters on the Stability of the β Solid Solution in a High-Strength Titanium Alloy

2019 ◽  
Vol 120 (5) ◽  
pp. 476-482
Author(s):  
A. G. Illarionov ◽  
I. V. Narygina ◽  
S. M. Illarionova ◽  
M. S. Karabanalov
Keyword(s):  
Solid Solution ◽  
Titanium Alloy ◽  
High Strength ◽  
The Stability

scholarly journals Evaluation of the effect of force direction on stationary anchorage success of mini-implant with a lever-arm–shaped upper structure

2011 ◽  
Vol 81 (5) ◽  
pp. 776-782 ◽  
Author(s):  
Ki-Ho Park ◽  
Eun-Man Lee ◽  
Seung-il Shin ◽  
Seong-Hun Kim ◽  
Young-Guk Park ◽  
...  
Keyword(s):  
Primary Stability ◽  
The Other ◽  
Control Group ◽  
Removal Torque ◽  
Lever Arm ◽  
Mini Implants ◽  
Force Direction ◽  
The Mean ◽  
The Stability ◽  
Experimental Group

Abstract Objective: To compare the effect of clockwise and counterclockwise torque on the primary stability of a mini-implant with a lever-arm–shaped upper structure. Materials and Methods: Twenty-four white rabbits were used for this study. Two screw-type mini-implants were placed in each tibia. In all, 96 screws were inserted. Two weeks later, a 2-N force was applied to the mini-implants without an upper structure in eight rabbits (control group). The mini-implants of the other 16 rabbits were loaded with an upper structure (experimental group). In the experimental group, the two left mini-implants were loaded in a clockwise direction (CW group) and the two right implants were loaded in a counterclockwise direction (CCW group). The rabbits were sacrificed at 1 week or 8 weeks after loading in both control and experimental groups. The removal torque value (RTV) was measured in 15 of 16 mini-implants in each group and the remaining implant was processed for histologic examination. Results: At 1 week there were no significant differences in the mean RTV between the control, CW, and CCW groups. At 8 weeks, the RTV was higher in the control and experimental groups than in the respective 1-week groups. At 8 weeks, there were no significant differences in the RTV between the control and CW groups, but the CCW group showed a lower RTV. Conclusions: CCW torque can decrease the stability of a mini-implant, whereas a CW torque has no effect.

scholarly journals Use of Orthodontic Mini-Implants for Maxillomandibular Fixation in Mandibular Fracture

2011 ◽  
Vol 4 (4) ◽  
pp. 213-216 ◽  
Author(s):  
Mario Sergio Medeiros Pires ◽  
Leandro Calcagno Reinhardt ◽  
Guilherme de Marco Antonello ◽  
Ricardo Torres do Couto
Keyword(s):  
Clinical Practice ◽  
Surface Treatment ◽  
Clinical Case ◽  
Steel Wire ◽  
Mandibular Fracture ◽  
Orthodontic Appliances ◽  
Skeletal Anchorage ◽  
Maxillomandibular Fixation ◽  
Mini Implants ◽  
The Cost

Orthodontic appliances for skeletal anchorage are becoming increasingly more common in clinical practice. Similarly, different terms such as mini-implants, microimplants, and miniscrews have been used. There is a wide array of appliances currently on the market, in different designs and sizes, diameters, degree of titanium purity, and surface treatment. These appliances have been used for a variety of indications, including tooth retraction, intrusion, and traction. This study aimed to report the clinical case of a 19-year-old patient with a fractured mandible and to propose a novel use of mini-implants: the perioperative placement of mini-implants as anchors for maxillomandibular fixation steel wire ligatures. We concluded that this appliance provides an effective maxillomandibular fixation in patients with mandibular fracture, with little increase in the cost of surgery.

The Constitutive Relation of Total Strain Theory Based on the Simple Experimental Data by the Application of Titanium Alloy

2012 ◽  
Vol 268-270 ◽  
pp. 308-311
Author(s):  
Xiao Jiu Feng ◽  
Hong Du ◽  
Ping Zhou
Keyword(s):  
Titanium Alloy ◽  
Constitutive Relation ◽  
Strain Theory ◽  
Total Strain ◽  
Simple Loading ◽  
Single Curve ◽  
Torsion Experiment ◽  
Curve Theory ◽  
The Stability ◽  
Tensile Experiment

The elastic-plasticity of the titanium alloy material has certain effect on the stability of the milling system. When the material is incompressible, the curve and the simple tensile curve are the same, and the material’s curve and the one-way shear’s curve are also the same. This may be called single curve theory. This paper is, under simple loading conditions, gets the data in the titanium alloy’s tensile experiment and torsion experiment. It studies the constitutive relation in the state of the multidimensional stress and the strain, by the material data obtained in the simple tensile experiment and torsion experiment according to the single curve theory. In the simple loading condition, it obtains the data of the titanium alloy’s tensile experiment and torsion experiment, and then gets the titanium alloy’s incremental constitutive relation, and by integration, it gets the constitutive relation of the titanium alloy’s total strain theory.

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