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J Clin Diagn Res. 2014 May;8(5):ZC33-6. doi: 10.7860/JCDR/2014/7990.4364. Epub 2014 May 15.

Evaluation of friction in orthodontics using various brackets and archwire combinations-an in vitro study.

Author information

1
Senior Lecturer, Department of Orthodontics, Vyas Dental College and Hospital , Jodhpur, India .
2
Reader, Department of Pedodontics and Preventive Dentistry, Vyas Dental College and Hospital , Jodhpur, India .
3
Professor, Department of Orthodontics, Vyas Dental College and Hospital , Jodhpur, India .
4
Senior Lecturer, Department of Periodontology, Vyas Dental College and Hospital , Jodhpur, India .
5
Professor and Head, Department of Pedodontics and Preventive Dentistry, Vyas Dental College and Hospital , Jodhpur, India .
6
PG Student, Conservative Dentistry & Endodontics, Pacific Dental College & Hospital , Udaipur, Rajasthan, India .
7
PG Student, Department of Orthodontics, Vyas Dental College and Hospital , Jodhpur, India .
8
Professor, Department of Orthodontics, Pacific Dental College and Hospital , Udaipur, Rajasthan, India .

Abstract

AIM:

The aim of this study was to compare frictional resistance which was produced between conventional brackets (0.022 slot Otho-Organiser) and self ligating brackets (active Forestadent and passive Damon III) by using various arch wire combinations (0.016 Niti, 0.018 Niti, 0.017 x 0.025 SS and 0.019 x 0.025 SS).

METHODS:

An experimental model which consisted of 5 aligned stainless steel 0.022-in brackets was used to assess frictional forces which were produced by SLBs (self ligating brackets) and CELs (conventional elastomeric ligatures) with use of 0.016 nickel titanium, 0.018 nickel titanium, 0.017 X 0.025"stainless steel and 0.019 X 0.025"stainless steel wires.

STATISTICAL ANALYSIS:

One way ANOVA test was used to study the effect of the bracket type, wire alloy and section on frictional resistance test .

RESULTS:

Conventional brackets produced highest levels of friction for all bracket/archwire combinations. Both Damon III and Forestadent brackets were found to produce significantly lower levels of friction when they were compared with elastomerically tied conventional brackets.

CONCLUSION:

SLBs are valid alternatives for low friction during sliding mechanics.

KEYWORDS:

Archwire; Friction; Ligation; Self-ligating active and passive brackets

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