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一种新设计的装置对正畸骨骼锚固的影响。

Effects of a newly designed apparatus on orthodontic skeletal anchorage.

作者信息

Tozlu Murat, Nalbantgil Didem, Ozdemir Fulya

机构信息

Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkiye.

出版信息

Eur J Dent. 2013 Sep;7(Suppl 1):S083-S088. doi: 10.4103/1305-7456.119082.

DOI:10.4103/1305-7456.119082
PMID:24966734
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4054085/
Abstract

OBJECTIVE

An appliance was designed to increase the cortical bone surface contact area of miniscrew implants (MSIs). The purpose of this in vitro study was to evaluate the effects of this appliance on the anchorage force resistance and the stability of orthodontic MSIs.

MATERIALS AND METHODS

A total of 48 MSIs were placed into bone specimens prepared from the ilium of bovines. Half were placed with the newly designed apparatus and half were placed conventionally. All the specimens were subjected to tangential force loading perpendicular to the MSI with lateral displacement of 0.6 mm, using an Instron Universal Testing machine. The maximum removal torque of each tested specimen was also recorded. Both study and control groups were divided into two subgroups based on whether they had thin and thick cortical bone.

RESULTS

The test group had statistically higher force anchorage resistance and maximum insertion torque values than the control group (P < 0.001). The results were found to be more significant in cases in which the cortical bone was thin (P < 0.001).

CONCLUSIONS

Within the limits of this in vitro study, the present findings suggest that the newly designed apparatus might have a favorable effect on MSI stability in patients presenting with thin cortical bone. Clinical studies are necessary to confirm the results that were observed in vitro.

摘要

目的

设计一种装置以增加微型螺钉种植体（MSIs）的皮质骨表面接触面积。本体外研究的目的是评估该装置对正畸微型螺钉种植体的锚固力抵抗和稳定性的影响。

材料与方法

将总共48枚微型螺钉种植体植入从牛髂骨制备的骨标本中。一半使用新设计的装置植入，另一半采用传统方式植入。使用英斯特朗万能试验机对所有标本施加垂直于微型螺钉种植体的切向力加载，侧向位移为0.6毫米。还记录了每个测试标本的最大去除扭矩。研究组和对照组均根据皮质骨薄厚分为两个亚组。

结果

测试组的力锚固抵抗和最大插入扭矩值在统计学上高于对照组（P < 0.001）。结果发现在皮质骨薄的情况下更显著（P < 0.001）。

结论

在本体外研究的范围内，目前的研究结果表明，新设计的装置可能对皮质骨薄的患者的微型螺钉种植体稳定性有有利影响。需要进行临床研究以证实体外观察到的结果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/c3d1c79b4f22/EJD-7-83-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/97335781a8b3/EJD-7-83-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/d81d53b521f3/EJD-7-83-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/a54e65b104bf/EJD-7-83-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/4e28dfede06e/EJD-7-83-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/525cd8bcbd44/EJD-7-83-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/c3d1c79b4f22/EJD-7-83-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/97335781a8b3/EJD-7-83-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/d81d53b521f3/EJD-7-83-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/a54e65b104bf/EJD-7-83-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/4e28dfede06e/EJD-7-83-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/525cd8bcbd44/EJD-7-83-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c387/4054085/c3d1c79b4f22/EJD-7-83-g006.jpg

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Eur J Dent. 2012 Jan;6(1):9-15.
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Survival analysis of orthodontic mini-implants.正畸微种植体的生存分析。
Am J Orthod Dentofacial Orthop. 2010 Feb;137(2):194-9. doi: 10.1016/j.ajodo.2008.03.031.
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Distalization of the mandibular dentition with mini-implants to correct a Class III malocclusion with a midline deviation.用微型种植体远移下颌牙列以矫正中线偏斜的 III 类错颌畸形。
使用自动嵌入辅助骨骼锚固装置评估微型螺钉稳定性。
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A Mini-review on the Effect of Mini-implants on Contemporary Orthodontic Science.微型种植体对当代正畸学影响的综述
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Angle Orthod. 2015 Sep;85(5):868-73. doi: 10.2319/070914-480.1. Epub 2014 Nov 18.
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Pullout strength of miniscrews placed in anterior mandibles of adult and adolescent dogs: a microcomputed tomographic analysis.微型种植体在前颌骨中的拔出强度：成年犬和青少年犬的微计算机断层扫描分析。
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