Torque control of the maxillary incisors in lingual and labial orthodontics: A 3-dimensional finite element analysis

Liang, Wei; Rong, Qin; J, Lin; Xu, Baohua

doi:10.1016/j.ajodo.2007.03.039

Cited by 106 publications

(81 citation statements)

References 14 publications

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“…In the literature, one may find papers reporting manual modeling of the particular elements, especially the teeth. 21,22 However, the root shape is a very individual and unique feature and determines tooth behavior during intrusion, which was supported by studies of Levander and Malmgen. 23 That is why individualization achieved due to using the patient's own model seems to be the most suitable.…”

Section: Discussionmentioning

confidence: 62%

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

et al. 2017

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Background. Loading of the compromised periodontium with orthodontic forces produces different results than those achieved in patients with healthy periodontal support. Determining the force value at a level preventing further deterioration of the patient's periodontal status, thus delivering the most precisely individualized "dose" of loading, seems to be crucial for the successful intrusion of teeth with reduced periodontal support.

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Section: Discussionmentioning

confidence: 62%

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

et al. 2017

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“…13 Differences in rigidity between different bone types were not contemplated, as they were not considered relevant to the objectives of the study (Table 1). N Tooth (upper right canine): A linear elastic isotropic and homogeneous behavior was assumed and mechanical properties were obtained from previous studies.…”

Section: Methodsmentioning

confidence: 99%

“…N Tooth (upper right canine): A linear elastic isotropic and homogeneous behavior was assumed and mechanical properties were obtained from previous studies. 13 Differences in rigidity among enamel, dentin, and cement were not contemplated, as they were not considered relevant to the objectives of the study (Table 1). N Composite attachments: Assumed as an isotropic homogeneous linear elastic behavior, with mechanical properties referred by the manufacturer 14 (Filtek TM P60, 3M ESPE, 3M, St. Paul, MN, USA) ( Table 1).…”

Section: Methodsmentioning

confidence: 99%

“…Although aligner-based rotation 11 and torque 12,13 movement have been explored, neither the mechanics of bodily tooth movement nor the role of the biomechanically enhancing composite attachments has been considered. The goal of this study is to describe, using a FE model, the force system and displacement patterns produced by plastic aligners in mechanics intended to produce bodily tooth movement with and without composite attachments.…”

Section: Introductionmentioning

confidence: 99%

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Initial force systems during bodily tooth movement with plastic aligners and composite attachments: A three-dimensional finite element analysis

Gómez

Peña

Martínez

et al. 2014

The Angle Orthodontist

147

117

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Objective: To describe, using a three-dimensional finite element (FE) model, the initial force system generated during bodily movement of upper canines with plastic aligners with and without composite attachments. Materials and Methods: A CAD model of an upper right canine, its alveolar bone and periodontal ligament, thermoformed plastic aligner, and two light-cured composite attachments were constructed. A FE model was used to analyze the effects of imposing a distal movement condition of 0.15 mm on the aligner (simulating the mechanics used to produce a distal bodily movement) with and without composite attachments. Results: In terms of tension and compression stress distribution, without composite attachments a compression area in the cervical third of the distal root surface and a tension area in the apical third of the mesial surface were observed. With composite attachments, uniform compression areas in the distal root surface and uniform tension area in the mesial root surface were observed. Compression areas in the active surfaces of the composite attachments were also observed. In terms of movement patterns, an uncontrolled distal inclination, with rotation axis between the middle and cervical root thirds, was observed without composite attachment. Distal bodily movement (translation) was observed with composite attachment. Conclusions: In a three-dimensional FE analysis of a plastic aligner system biomechanically supplementary composite attachments generate the force system required to produce bodily tooth movement; the absence of biomechanically supplementary composite attachments favors the undesired inclination of the tooth during the translation movements. (Angle Orthod. 2015;85:454-460.)

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“…However, numerical convergence (Huang et al, 2007) is still required, which is frequently neglected in dental simulations (Tanne et al, 1987;Jones et al, 2001;Liang et al, 2009;Kim et al, 2010). Some biologists ignore all results from FEA, requesting an unreasonable level of validation for each model, but overlooking the valuable contributions of engineering principles.…”

Section: Finite Element Analysis Of the Current Dental Models 41 Mesmentioning

confidence: 99%

Past, Present and Future of Finite Element Analysis in Dentistry

Ko¹,

Rocha²,

Larson³

2012

Finite Element Analysis - From Biomedical Applications to Industrial Developments

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Torque control of the maxillary incisors in lingual and labial orthodontics: A 3-dimensional finite element analysis

Cited by 106 publications

References 14 publications

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

Orthodontic intrusion of periodontally-compromised maxillary incisors: 3-dimensional finite element method analysis

Initial force systems during bodily tooth movement with plastic aligners and composite attachments: A three-dimensional finite element analysis

Past, Present and Future of Finite Element Analysis in Dentistry

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