Development of a magneto-driven orthodontic wire and its application for efficient tooth movement
磁驱动正畸线的开发及其在高效牙齿移动中的应用
基本信息
- 批准号:18592227
- 负责人:
- 金额:$ 2.43万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2006
- 资助国家:日本
- 起止时间:2006 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The aim of this study was to develop a magneto-driven orthodontic wire and to apply this new wire for efficient tooth movement Orthodontic tooth movement is generated by the coupling of bone resorption on the compressed side of the periodontal ligament (PDL) and by bone formation on the stretched side of the PDL as a consequence of therapeutic mechanical stress. Since orthodontic treatment usually takes place over a long period of time, the risk of caries, periodontal disease, and prolonged treatment period are burdensome for the patient. Furthermore, it has been reported that total treatment duration proves to be highly correlated with root resorption. In this respect, it is important to accelerate alveolar bone remodeling during orthodontic treatment, to shorten the time required for successful therapy. Some studies revealed that mechanical stimulation by vibration accelerated the speed of tooth movement.On the other hand, the unique properties of shape memory and superelasticity have made shape memory alloys (SMAs) very useful biomaterials. Superelasticity is a phenomenon in which the stress value remains fairly constant up to a certain point of wire deformation. At the same time, when the deformed wire rebounds, the stress value remains fairly constant The property is very advantageous for orthodontic tooth movement, and the SMA wires have thus been widely used in orthodontic treatment.In this study, a titanium-niobium-aluminum (Ti-24Nb-3Al) SMA wire, which was considered to be biocompatible as a nickel free wire, was developed, and combined with a cobalt-based ferromagnetic SMA. Thus, a magneto-driven orthodontic wire was newly developed, and orthodontic palatal movement of maxillary first molars in Wistar-strain rats (age; 6 weeks) was performed with this new wire. The vibration was applied for ten minutes everyday by a wirelessly changing the magnetic field. The results suggested that the vibration accelerated orthodontic tooth movement.
本研究的目的是开发一种磁驱动的正畸线,并将这种新的线用于有效的牙齿移动正畸牙齿移动是由牙周膜(PDL)的压缩侧上的骨吸收和PDL的拉伸侧上的骨形成的耦合产生的,作为治疗机械应力的结果。由于正畸治疗通常需要很长一段时间,龋齿、牙周病的风险和延长的治疗时间对患者来说是沉重的负担。此外,据报道,总治疗时间与牙根吸收高度相关。因此,在正畸治疗过程中,加速牙槽骨重建,缩短治疗成功所需的时间是非常重要的。一些研究表明,振动的机械刺激可以加快牙齿的移动速度,而形状记忆合金(SMA)具有的形状记忆和超弹性等特性使其成为一种非常有用的生物材料。超弹性是一种现象,其中应力值保持相当恒定,直到线变形的某个点。同时,当变形后的金属丝回弹时,应力值保持相当恒定,这一特性对正畸牙齿移动非常有利,因此SMA丝已被广泛应用于正畸治疗中。本研究开发了一种钛铌铝(Ti-24 Nb-3Al)SMA丝,它被认为是一种无镍丝,具有生物相容性,并与钴基铁磁SMA相结合。因此,磁驱动的正畸线是新开发的,正畸腭移动的上颌第一磨牙在Wistar品系大鼠(年龄; 6周)进行了这种新的线。每天通过无线改变磁场施加振动十分钟。结果表明,振动加速正畸牙齿移动。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Efffect on cranial suture in rat by orthopedic force using Ti-based SMA wire
钛基 SMA 线矫形力对大鼠颅骨缝合的影响
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Urayama S.;Igarashi K.;ed. al.
- 通讯作者:ed. al.
Effects of a selective cyclooxygenase-2 inhibitor, celecoxib, onosteopenia and increased bone turnover in ovariectomized rats
选择性环氧合酶 2 抑制剂塞来昔布对去卵巢大鼠骨质减少和骨转换增加的影响
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Yamazaki H.;Igarashi K.
- 通讯作者:Igarashi K.
Involvment of vascular endothelial growth factor produced by periodontal ligament cells in the alveolar bone remodeling induced by mechanical stress
牙周膜细胞产生的血管内皮生长因子参与机械应力诱导的牙槽骨重塑
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Miyagawa A.;Chiba M.;Hayashi H.;Igarashi K.
- 通讯作者:Igarashi K.
Periodontal tissue activation by vibration: Intermittent stimulation by resonance vibration accelerates experimental tooth movement in rats
- DOI:10.1016/j.ajodo.2006.01.046
- 发表时间:2008-04-01
- 期刊:
- 影响因子:3
- 作者:Nishimura, Makoto;Chiba, Mirei;Mitani, Hideo
- 通讯作者:Mitani, Hideo
Histological evaluation of the effects of initially light and gradually increasing force on orthodontic tooth movements.
组织学评估最初轻和逐渐增加的力对正畸牙齿移动的影响。
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Tomizuka R;Igarashi K;et. al
- 通讯作者:et. al
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IGARASHI Kaoru其他文献
IGARASHI Kaoru的其他文献
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{{ truncateString('IGARASHI Kaoru', 18)}}的其他基金
A study on the relationship between lip closing functions, and the masticatory ability and articulatory function of the cleft lip and palate patients.
唇腭裂患者唇部闭合功能与咀嚼能力、构音功能关系的研究
- 批准号:
24593077 - 财政年份:2012
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on the role of small G proteins in mechanotransduction
小G蛋白在力传导中的作用研究
- 批准号:
13672138 - 财政年份:2001
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
A study on the morphological changes of osteocytes in rat alveolar bone during orthodontic tooth movement
正畸牙移动过程中大鼠牙槽骨骨细胞形态变化的研究
- 批准号:
08672356 - 财政年份:1996
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)