A finite element analysis of torque capabilities of the DamonQ system using the double wire technique

doi:10.3969/j.issn.2095-4344.2016.33.008

Abstract

Abstract:

BACKGROUND: In the orthodontic treatment, double wire technique is commonly used to correct the torque of anterior teeth; however, the underlying mechanical mechanisms remain unclear.
OBJECTIVE: To study the torque capabilities of DamonQ system through the three-dimensional finite element method.
METHODS: Three-dimensional finite element models of Damon Q brackets with different dimension arch wires were established and were grouped according to arch wire with different dimensions. The torque capabilities of Damon Q system with different dimensions and materials arch wire were analyzed.
RESULTS AND CONCLUSION: The Damon Q brackets with single or double wires had the same variation of torque, torque angle curve changes under the condition of different size and material arch wires. Torque moment increased gradually with increasing torque angle. Rectangular-round double wires produced larger torque moment compared with single rectangular wire, whereas double round wires produced smaller torque moment compared with single rectangular wire. The torque moment produced by rectangular-round double wires or by single rectangular wire was approximately 2-8 times or 1-5 times more than that by double round wires. The torque moment that rectangular-round double wires produced was larger than that single wire produced in the DamonQ system. In the early clinical practice, we can use double round wires to control root movement. In the middle-term of the treatment, we can use rectangular-round double wires to control root movement as the mild forces produced by them reduce root absorption. This study lays a foundation for the application of Damon Q bracket with double wire technology in the clinic.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Orthodontic Wires, Torque, Finite Element Analysis, Tissue Engineering

CLC Number:

R318

Wang Ya-nan, Qu Yang, He Song, Huang Si-yuan, Yang Si-wei, Huang Yue. A finite element analysis of torque capabilities of the DamonQ system using the double wire technique[J]. Chinese Journal of Tissue Engineering Research, 2016, 20(33): 4919-4925.

Figures/Tables 1

References

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