Bone stress when miniplates are used for orthodontic anchorage: Finite element analysis

Huang, Yen Wen; Chang, Chih Han; Wong, Tung Yiu; Liu, Jia Kuang

doi:10.1016/j.ajodo.2012.04.019

Cited by 16 publications

(16 citation statements)

References 16 publications

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“…The peak stress in the cortex and cancellous bone was found under the screws. The results obtained are consistent with a similar study done by Huang, et al (2) The distribution of von Mises stress in the base model of Miniplate The results showed the neck region of mini-implant to have experienced the peak stress. And the peak stress in cortex occurred around the edge of top surface.…”

Section: Resultssupporting

confidence: 82%

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Comparative assessment of bone stress associated with miniplates and miniimplants used for orthodontic anchorage: A finite element study

2016

IJODR

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Objective: To assess and compare bone stress associated with various miniplates and mini-implant systems by using finite element analysis. Materials and Methods: Bone stress associated with various miniplate and mini-implant systems were compared and assessed by using finite element analysis and taking into account a number of variables, which play an important role in the success, and failure of such TAD systems. Results: Peak von Mises stresses in cortical and cancellous bones for Miniplate Base Model are 18.43 MPa and 1.735 MPa respectively and for Mini-Implant Base Model are 1.621 Mpa and 0.2645 MPa respectively. Conclusion: Bone stress due to miniplate is more compared to mini-implant. Bone stress decreases with increased cortical thickness, increases with increased force magnitude. Highest bone stress is due to I-type followed by L-type, Y-type and T-type miniplate. Increased miniplate fixation screw length for miniplate or mini-implant length doesn't have significant effect on bone stress. Bone stress decreases as mini-implant diameter increases.

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Section: Resultssupporting

confidence: 82%

“…The three most commonly used temporary skeletal anchorage devices nowadays are: a) palatal implants, b) miniscrews, and c) miniplates. (2) A study was done to check for the survival and failure rates of various TADs. The failure rates for miniplates, palatal implants and miniscrews were found to be 7.3%, 10.5 % and 16.4% respectively.…”

Section: Introductionmentioning

confidence: 99%

Comparative assessment of bone stress associated with miniplates and miniimplants used for orthodontic anchorage: A finite element study

2016

IJODR

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“…Titanium miniplates were used for directly anchoring the FFRD and the mandibular arches were not bonded in accordance with previous studies 22,23,25 to apply load directly to the mandibular base. Y shaped miniplates were used as recommended by Huang et al 39 , who proved that the Y and T shaped miniplates produced the least amount of bone stresses when used for orthodontic anchorage.…”

Section: Discussionmentioning

confidence: 99%

Buccal bone graft with surgically assisted rapid maxillary expansion in young adults: a cone beam computerized tomographic study

Agniah

Bedwehi

Al-khalifa

et al. 2018

Egyptian Orthodontic Journal

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“…In scenario 1, 567,870 elements and 124,800 nodes; in scenario 2, 551,189 elements and 120,074 nodes; and in scenario 3, 557,884 elements and 122,486 nodes were used. Mechanical properties of materials in the models were obtained from experimental data in previous reports [29–31] (Table 1), and all structures were assumed to be isotropic, homogeneous, and linearly elastic. The superior and posterior skull regions formed the boundaries of the model, as zero displacement in the x , y , and z directions (transverse, anteroposterior, and vertical axes, respectively).…”

Section: Methodsmentioning

confidence: 99%

Maxillary posterior intrusion with corticotomy-assisted approaches with zygomatic anchorage—a finite element stress analysis

Uysal¹,

Tuncer

2019

Prog Orthod.

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Background Anterior open bite is one of the most difficult malocclusions to treat and maintain in orthodontics. An effective treatment approach to correct anterior open bite is the intrusion of maxillary posterior teeth. The aim of this study was to evaluate the effects of corticotomy-assisted posterior maxillary intrusion with zygomatic anchorage by using finite element stress analysis. Methods An acrylic bite block on the posterior teeth including two transpalatal arches were modeled and 1.96 N intrusive force was loaded. Three scenarios were set, first with no subapical corticotomy, second with buccal, and third with both buccal and palatal corticotomies. The stress distributions along the cortical, cancellous bone surfaces, and dental structures were assessed by finite element stress analysis. Results Stress distributions over cortical and cancellous bones were commonly located at the inferior curvature of the zygomatic buttress area and posterior teeth for all scenarios. Stress values above the apices of anchor teeth were decreased for both corticotomy scenarios. Increased stress distributions were observed in cancellous bone around corticotomy regions. Despite the acrylic appliance and transpalatal arches, the stresses along the posterior teeth were not uniform. The apical third of the first molar mesiobuccal apex showed the highest stress values in all scenarios. Conclusions Corticotomy-assistance effected biomechanical responses of dentoalveolar structures during maxillary posterior intrusion. There was no apparent difference for the stress levels of the root apices between corticotomy scenarios, pointing out that only buccal corticotomy may be a better option in corticotomy-assisted maxillary intrusion.

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Bone stress when miniplates are used for orthodontic anchorage: Finite element analysis

Cited by 16 publications

References 16 publications

Comparative assessment of bone stress associated with miniplates and miniimplants used for orthodontic anchorage: A finite element study

Comparative assessment of bone stress associated with miniplates and miniimplants used for orthodontic anchorage: A finite element study

Buccal bone graft with surgically assisted rapid maxillary expansion in young adults: a cone beam computerized tomographic study

Maxillary posterior intrusion with corticotomy-assisted approaches with zygomatic anchorage—a finite element stress analysis

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