The effects of friction and flexural rigidity of the archwire on canine movement in sliding mechanics: A numerical simulation with a 3-dimensional finite element method

Kojima, Yukio; Fukui, Hisao; Miyajima, Kuniaki

doi:10.1016/j.ajodo.2006.02.030

Cited by 27 publications

(18 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Radiographic methods, although effective for determining canine retraction and loss of anchor, 18 expose patients to unnecessary radiation and do not allow the evaluation of canine rotation. As in many other studies, 15,16,[18][19][20][21][22] plaster models were used here to obtain the measurements.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Maxillary canine retraction with self-ligating and conventional brackets

Mezomo¹,

Lima²,

Menezes³

et al. 2011

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To measure space closure during the retraction of upper permanent canines with selfligating and conventional brackets. Materials and Methods: Fifteen patients who required maxillary canine retraction into first premolar extraction sites as part of their orthodontic treatment completed this study. In a random split-mouth design, the retraction of upper canines was performed using an elastomeric chain with 150 g of force. The evaluations were performed in dental casts (T0, initial; T1, 4 weeks; T2, 8 weeks; T3, 12 weeks). The amount of movement and the rotation of the canines as well as anchorage loss of the upper first molars were evaluated. Results: There was no difference between self-ligating and conventional brackets regarding the distal movement of upper canines and mesial movement of first molars (P . .05). Rotation of the upper canines was minimized with self-ligating brackets (P , .05). Conclusion: Distal movement of the upper canines and anchorage loss of the first molars were similar with both conventional and self-ligating brackets. Rotation of the upper canines during sliding mechanics was minimized with self-ligating brackets. (Angle Orthod. 2011;81:292-297.)

show abstract

Section: Discussionmentioning

confidence: 99%

“…It is known that stiffer wires can better resist the tendency of teeth tilting during sliding. 19,20 Therefore, thicker SS wires would be best suited for these mechanics. It should be emphasized that friction increases as bracket slots are filled.…”

Section: Discussionmentioning

confidence: 99%

Maxillary canine retraction with self-ligating and conventional brackets

Mezomo¹,

Lima²,

Menezes³

et al. 2011

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…[8][9][10][11][12] Nevertheless, optimal loading conditions for controlled movement of anterior teeth in sliding mechanics by using power arms is still not fully understood. With respect to the finite element method (FEM) study, although single canine retraction has been simulated, 13,14 no study involving en masse retraction has been reported.…”

Section: Introductionmentioning

confidence: 99%

Optimal loading conditions for controlled movement of anterior teeth in sliding mechanics

et al. 2010

View full text Add to dashboard Cite

Objective: To determine optimal loading conditions such as height of retraction force on the power arm and its position on the archwire in sliding mechanics. Materials and Methods: A 3D finite element method (FEM) was used to simulate en masse anterior teeth retraction in sliding mechanics. The degree of labiolingual tipping of the maxillary central incisor was calculated when the retraction force was applied to different heights of a power arm set mesial or distal to the canine. Results: When the power arm was placed mesial to the canine, at the level of 0 mm (bracket slot level), uncontrolled lingual crown tipping of the incisor was observed and the anterior segment of the archwire was deformed downward. At a power arm height of 5.5 mm, bodily movement was produced and the archwire was less deformed. When the power arm height exceeded 5.5 mm, the anterior segment of the archwire was raised upward and lingual root tipping occurred. When the power arm was placed distal to the canine, lingual crown tipping was observed up to a level of 11.2 mm. Conclusions: Placement of the power arm of an archwire between the lateral incisor and canine enables orthodontists to maintain better control of the anterior teeth in sliding mechanics. Both the biomechanical principles associated with the tooth's center of resistance and the deformation of the archwire should be taken into consideration for predicting and planning orthodontic tooth movement.

show abstract

“…The heterogeneous and anisotropic material property of PDL and bone should be considered. The frictional coefficient between the bracket and the archwire directly affects sliding friction mechanical properties, thus is an important factor in the simulation of orthodontic force . A frictional coefficient of 0.15 was chosen in this study according to previous in vitro experimental data.…”

Section: Discussionmentioning

confidence: 99%

“…The frictional coefficient between the bracket and the archwire directly affects sliding friction mechanical properties, thus is an important factor in the simulation of orthodontic force. 42,50,51 A frictional coefficient of 0.15 was chosen in this study according to previous in vitro experimental data. The effect of a different frictional coefficient on the orthodontic force should be further studied in future.…”

Section: Discussionmentioning

confidence: 99%

Simulation of orthodontic force of archwire applied to full dentition using virtual bracket displacement method

Zhang

Gan

Zhao

et al. 2019

Numer Methods Biomed Eng

View full text Add to dashboard Cite

Objective Orthodontic force simulation of tooth provides important guidance for clinical orthodontic treatment. However, previous studies did not involve the simulation of orthodontic force of archwire applied to full dentition. This study aimed to develop a method to simulate orthodontic force of tooth produced by loading a continuous archwire to full dentition using finite element method. Method A three‐dimensional tooth‐periodontal ligament‐bone complex model of mandible was reconstructed from computed tomography images, and models of brackets and archwire were built. The simulation was completed through two steps. First, node displacements of archwire before and after loading were estimated through moving virtual brackets to drive archwire deformation. Second, the obtained node displacements were loaded to implement the loading of archwire, and orthodontic force was calculated. An orthodontic force tester (OFT) was used to measure orthodontic force in vitro for the validation. Results After the simulation convergence, archwire was successfully loaded to brackets, and orthodontic force of teeth was obtained. Compared with the measured orthodontic force using the OFT, the absolute difference of the simulation results ranged from 0.5 to 22.7 cN for force component and ranged from 2.2 to 80.0 cN•mm for moment component, respectively. The relative difference of the simulation results ranged from 2.5% to 11.0% for force component, and ranged from 0.6% to 14.7% for moment component, respectively. Conclusions The developed orthodontic force simulation method based on virtual bracket displacement can be used to simulate orthodontic force provided by the archwire applied to full dentition.

show abstract

The effects of friction and flexural rigidity of the archwire on canine movement in sliding mechanics: A numerical simulation with a 3-dimensional finite element method

Cited by 27 publications

References 14 publications

Maxillary canine retraction with self-ligating and conventional brackets

Maxillary canine retraction with self-ligating and conventional brackets

Optimal loading conditions for controlled movement of anterior teeth in sliding mechanics

Simulation of orthodontic force of archwire applied to full dentition using virtual bracket displacement method

Contact Info

Product

Resources

About