Biomechanical effects of corticotomy approaches on dentoalveolar structures during canine retraction: A 3-dimensional finite element analysis

Yang, Chongshi; Wang, Chao; Deng, Feng; Fan, Yubo

doi:10.1016/j.ajodo.2015.03.032

Cited by 32 publications

(25 citation statements)

References 31 publications

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“…Due to the differences between the finite element models and the actual situation owing to material properties and boundary conditions, the results of the FEM studies should be deciphered with caution. For example, the PDL is a non-linear, viscoelastic, and anisotropic material actually [ 12 ]. However, it occupies only a little volume in total skull models in FEM studies and its elastic properties are incomparably minor to dense structures as cortical bone and teeth.…”

Section: Discussionmentioning

confidence: 99%

“…3D finite element stress analysis (FESA) is a numeric method for simulating mechanical behaviors of real physical systems and considered to be a valid and reliable approach for calculating stress and displacement of dentoalveolar structures [ 11 ]. Yang et al [ 12 ] stated that FEM could be beneficial to simulate orthodontic approaches and to compare their biomechanical effects without increasing number of patients or animals like in the clinical investigations. The aim of this study was to evaluate the effects of a new method for unilateral maxillary expansion by using 3D FESA.…”

Section: Introductionmentioning

confidence: 99%

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A new method for the treatment of unilateral posterior cross-bite: a three-dimensional finite element stress analysis study

Ulusoy

Dogan²

2018

Prog Orthod.

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BackgroundStress relieving corticoto mies during the treatment of maxillary expansion are needed in adult patients.MethodsThree-dimensional (3D) finite element model was prepared, and finite element analysis was processed to evaluate the stress distributions within the skull and maxillary teeth during surgically assisted rapid maxillary expansion (SARME) treatment.ResultsExpansion forces generated more stress on the corticotomy-applied part of the maxilla. The stress levels decreased dramatically above the corticotomy line.ConclusionAsymmetric transveral maxillary expansion might be achieved from a symmetric force generating screw during SARME treatment. SARME osteotomies may concentrate the stress in the expanding maxilla and reduce the pain in other parts of the cranium.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new method for the treatment of unilateral posterior cross-bite: a three-dimensional finite element stress analysis study

Ulusoy

Dogan²

2018

Prog Orthod.

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“…Similarly, a previous study reported the lowered stresses around anchor teeth during maxillary expansion with the combination of Le Fort and paramedian osteotomies [35]. Yang et al [36] also interpreted their similar results as the reduction of the resistance to tooth movement by the assistance of corticotomies.…”

Section: Discussionmentioning

confidence: 60%

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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“…6,7 It was suggested that due to the surgical injury in the form of cuts and holes, the resistance offered by the cortical bone would be reduced. 2 Bone remodeling is a resultant of change in stress or strain induced by the orthodontic appliance, and to understand their nature, 3D finite element method can be efficiently used. It is considered to be a valid and most widely used approach to help orthodontists understand the physiologic responses of the dentition to orthodontic forces.…”

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Effects of Different Corticotomy Designs on Velocity of Upper Canine Retraction: A Finite Element Study

Ahuja

Gupta

Bhambri

et al. 2019

J Indian Orthod Soc

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Purpose: Understanding the effects of different corticotomy designs on the velocity of maxillary canine retraction. Materials and Method: The 3-dimensional model of maxillary dentition was constructed and 3 corticotomy designs were compared with the conventional approach of canine retraction. 4 models were constructed for the present study: 1 with no corticotomy cuts (model 1), 1 with vertical cuts on both buccal and palatal side (model 2), other with cuts only on buccal side (model 3), and 1 with circular holes (model 4). Stress intensity and force distribution were evaluated after applying 150 gm of orthodontic forces on maxillary canine. Results: Models with corticotomy approaches exhibited approximately twice the displacement when compared with conventional noncorticotomy procedure. The stresses were mainly concentrated on the distal side of the canine in all the models. The rate of canine retraction was the highest in model with buccal and palatal corticotomy compared to other designs. Conclusions: Corticotomies help orthodontists to alter the biomechanical responses of dentoalveolar structures during maxillary canine retraction and accelerate tooth movement. Clinically, buccal corticotomy is a better choice for the patients as it is less traumatic and more acceptable to patients.

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Biomechanical effects of corticotomy approaches on dentoalveolar structures during canine retraction: A 3-dimensional finite element analysis

Cited by 32 publications

References 31 publications

A new method for the treatment of unilateral posterior cross-bite: a three-dimensional finite element stress analysis study

A new method for the treatment of unilateral posterior cross-bite: a three-dimensional finite element stress analysis study

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

Comparative Evaluation of Effects of Different Corticotomy Designs on Velocity of Upper Canine Retraction: A Finite Element Study

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