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创新型正畸微螺钉系统（STS）的初期稳定性评估：一项体外研究。

Evaluation of primary stability of innovated orthodontic miniscrew system (STS): An ex-vivo study.

作者信息

Seifi Massoud, Matini Negin-Sadat

机构信息

DDS, MSD, MS Med Edu. Dentofacial Deformities Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

DDS. Department of Orthodontics, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

出版信息

J Clin Exp Dent. 2016 Jul 1;8(3):e255-9. doi: 10.4317/jced.52676. eCollection 2016 Jul.

DOI:10.4317/jced.52676
PMID:27398174
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4930633/
Abstract

BACKGROUND

Stability is determined as one of the requirements in use of Temporary Anchorage Devices (TAD) in orthodontics. Miniscrew has been a widely used Bone Anchor. Compared with mini-implant that necessitates osseointegration; mechanical retention is a determining factor for primary stability of miniscrew. Studies investigated various ways to increase primary stability. The aim of this study is to introduce a new configuration of miniscrew system which is believed to obtain more primary stability.

MATERIAL AND METHODS

Freshly ovine mandibles were cut in blocks. Twenty-seven miniscrews (diameter 1.6 × 8 mm; G2, Dual Top Anchor System, Jeil Medical, Seoul, Korea) were inserted in the blocks and divided in 2 experimental groups: single miniscrew and the innovated design "Seifi Twin Screw (STS)". Primary stability was evaluated by Periotest "M"® device.

RESULTS

Independent t-test showed a significant difference between 2 experimental groups in periotest evaluation (p< 0.05). STS demonstrated higher primary stability due to its mechanical configuration and design.

CONCLUSIONS

The STS provides higher primary stability and was found to be effective in increased success rate of miniscrew systems from the standpoint of primary stability.

KEY WORDS

Anchorage procedures, anchorage techniques, orthodontic anchorage procedures, miniscrews, temporary anchorage device.

摘要

背景

稳定性被确定为正畸中使用临时锚固装置（TAD）的要求之一。微型螺钉一直是广泛使用的骨锚固装置。与需要骨整合的微型种植体相比，机械固位是微型螺钉初始稳定性的决定因素。研究探讨了增加初始稳定性的各种方法。本研究的目的是介绍一种新型微型螺钉系统构型，据信该构型能获得更高的初始稳定性。

材料与方法

将新鲜羊下颌骨切成块状。将27枚微型螺钉（直径1.6×8mm；G2，双顶端锚固系统，韩国首尔杰尔医疗公司）植入骨块中，并分为2个实验组：单枚微型螺钉组和创新设计的“赛菲双螺钉（STS）”组。通过Periotest“M”®装置评估初始稳定性。

结果

独立t检验显示，在牙周测试评估中，2个实验组之间存在显著差异（p<0.05）。由于其机械构型和设计，STS表现出更高的初始稳定性。

结论

从初始稳定性的角度来看，STS提供了更高的初始稳定性，并且发现其能有效提高微型螺钉系统的成功率。

关键词

锚固程序、锚固技术、正畸锚固程序、微型螺钉、临时锚固装置

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/890b7c756feb/jced-8-e255-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/49ed89a95ded/jced-8-e255-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/cd07e0370e09/jced-8-e255-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/890b7c756feb/jced-8-e255-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/49ed89a95ded/jced-8-e255-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/cd07e0370e09/jced-8-e255-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f5cb/4930633/890b7c756feb/jced-8-e255-g003.jpg

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