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三种不同结扎方法与四种不同尺寸正畸弓丝之间产生的摩擦力评估：一项研究。

Evaluation of Frictional Forces Generated between Three Different Ligation Methods with Four Different Sizes of Orthodontic Archwires: An Study.

作者信息

Rathinasamy Ranganathan, Vannala Venkataramana, Mahabob Nazargi, Bhuvaneshwari S, Sam George, Ganapathy Aarthi

机构信息

Department of Orthodontics, Vinayaka Mission's Sankarachariyar Dental College, Salem, Tamil Nadu, India.

Department of Preventive Dental Sciences, College of Dentistry, Gulf Medical University, Ajman, UAE.

出版信息

J Pharm Bioallied Sci. 2021 Nov;13(Suppl 2):S1434-S1441. doi: 10.4103/jpbs.jpbs_244_21. Epub 2021 Nov 10.

DOI:10.4103/jpbs.jpbs_244_21
PMID:35018005
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8686929/
Abstract

AIM

This study was done to evaluate and compare the frictional forces produced by a passive self-ligating bracket (SLB) and two types of elastomeric ligatures (unconventional elastomeric ligatures [UELs] and conventional elastomeric ligatures [CELs]) on a conventional bracket used with four types of wires.

MATERIALS

In this study, 8 numbers of conventional preadjusted edgewise appliance stainless steel brackets and 4 numbers of passive SLBs were tested. Four types of archwires and two types of ligatures were tested. Brackets were divided into three groups - Group I, Group II, and Group III. All the three groups were further divided into four subgroups based on different archwires.

METHODS

Custom-made mounting jig was specially constructed for this study - upper member and lower member. After the samples were mounted, traction test was conducted using universal testing machine and readings were tabulated for all specimens. The variables in each group were subjected to one-way analysis of variance.

RESULTS

All the three groups were tested for its total friction, static friction, and kinetic friction. SLBs showed a static mean little lower and had kinetic mean little greater than conventional bracket with unconventional module.

CONCLUSION

UELs on conventional brackets and SLBs are able to produce lower frictional force when compared with CELs on conventional brackets.

摘要

目的

本研究旨在评估和比较被动式自锁托槽（SLB）以及两种类型的弹性结扎圈（非常规弹性结扎圈[UELs]和常规弹性结扎圈[CELs]）在与四种类型的弓丝配合使用的常规托槽上所产生的摩擦力。

材料

在本研究中，测试了8个常规预调整直丝弓矫治器不锈钢托槽和4个被动式自锁托槽。测试了四种类型的弓丝和两种类型的结扎圈。托槽被分为三组——第一组、第二组和第三组。所有三组又根据不同的弓丝进一步分为四个亚组。

方法

为本研究专门构建了定制的安装夹具——上部件和下部件。在安装样品后，使用万能试验机进行牵引测试，并将所有标本的读数制成表格。对每组中的变量进行单因素方差分析。

结果

对所有三组进行了总摩擦力、静摩擦力和动摩擦力测试。与使用非常规组件的常规托槽相比，自锁托槽的静摩擦力均值略低，动摩擦力均值略高。

结论

与常规托槽上的常规弹性结扎圈相比，常规托槽上的非常规弹性结扎圈和自锁托槽能够产生更低摩擦力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/99aed987326d/JPBS-13-1434-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/9cc23f441fee/JPBS-13-1434-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/20ef73216ca4/JPBS-13-1434-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/f640d775b786/JPBS-13-1434-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/dfafa6e4b386/JPBS-13-1434-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/5c7b9e957b41/JPBS-13-1434-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/e8f40910165f/JPBS-13-1434-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/d7a08c595161/JPBS-13-1434-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/826117c70162/JPBS-13-1434-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/99aed987326d/JPBS-13-1434-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/9cc23f441fee/JPBS-13-1434-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/20ef73216ca4/JPBS-13-1434-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/f640d775b786/JPBS-13-1434-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/dfafa6e4b386/JPBS-13-1434-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/5c7b9e957b41/JPBS-13-1434-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/e8f40910165f/JPBS-13-1434-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/d7a08c595161/JPBS-13-1434-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/826117c70162/JPBS-13-1434-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6fdb/8686929/99aed987326d/JPBS-13-1434-g009.jpg

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