Comparison of frictional forces between aesthetic orthodontic coated wires and self-ligation brackets

Yunmi Kim, Jung Yul Cha, ChungJu Hwang, Hyung Seog Yu, Seon Gun Tahk

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Objective: The purpose of this study was to evaluate the clinical efficacy of polymer- and rhodium-coated wires compared to uncoated wires by measuring the frictional forces using self-ligation brackets. Methods: 0.016-inch nickel titanium (NiTi) wires and 0.017 × 0.025-inch stainless steel (SS) wires were used, and the angulations between the brackets and wires were set to 0o, 5o, and 10°. Upper maxillary premolar brackets (Clippy-C®) with a 0.022-inch slot were selected for the study and a tensile test was performed with a crosshead speed of 5 mm/min. The maximum static frictional forces and kinetic frictional forces were recorded and compared. Results: The maximum static frictional forces and the kinetic frictional forces of coated wires were equal to or higher than those of the uncoated wires (p < 0.05). The maximum static frictional forces of rhodium-coated wires were significantly higher than those of polymer-coated wires when the angulations between the brackets and wires were set to (i) 5o in the 0.016-inch NiTi wires and (ii) all angulations in the 0.017 × 0.025-inch SS wires (p < 0.05). The kinetic frictional forces of rhodium-coated wires were higher than those of polymer-coated wires, except when the angulations were set to 0o in the 0.016-inch NiTi wires (p < 0.05). Conclusions: Although the frictional forces of the coated wires with regards to aesthetics were equal to or greater than those of the uncoated wires, a study under similar conditions regarding the oral cavity is needed in order to establish the clinical implications.

Original languageEnglish
Pages (from-to)157-167
Number of pages11
JournalKorean Journal of Orthodontics
Volume44
Issue number4
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Orthodontic Wires
Rhodium
Esthetics
Ligation
Polymers
Stainless Steel
Bicuspid
Mouth
nitinol

All Science Journal Classification (ASJC) codes

  • Orthodontics

Cite this

Kim, Yunmi ; Cha, Jung Yul ; Hwang, ChungJu ; Yu, Hyung Seog ; Tahk, Seon Gun. / Comparison of frictional forces between aesthetic orthodontic coated wires and self-ligation brackets. In: Korean Journal of Orthodontics. 2014 ; Vol. 44, No. 4. pp. 157-167.
@article{5d306bc678d447bc9019d371e1289ff8,
title = "Comparison of frictional forces between aesthetic orthodontic coated wires and self-ligation brackets",
abstract = "Objective: The purpose of this study was to evaluate the clinical efficacy of polymer- and rhodium-coated wires compared to uncoated wires by measuring the frictional forces using self-ligation brackets. Methods: 0.016-inch nickel titanium (NiTi) wires and 0.017 × 0.025-inch stainless steel (SS) wires were used, and the angulations between the brackets and wires were set to 0o, 5o, and 10°. Upper maxillary premolar brackets (Clippy-C{\circledR}) with a 0.022-inch slot were selected for the study and a tensile test was performed with a crosshead speed of 5 mm/min. The maximum static frictional forces and kinetic frictional forces were recorded and compared. Results: The maximum static frictional forces and the kinetic frictional forces of coated wires were equal to or higher than those of the uncoated wires (p < 0.05). The maximum static frictional forces of rhodium-coated wires were significantly higher than those of polymer-coated wires when the angulations between the brackets and wires were set to (i) 5o in the 0.016-inch NiTi wires and (ii) all angulations in the 0.017 × 0.025-inch SS wires (p < 0.05). The kinetic frictional forces of rhodium-coated wires were higher than those of polymer-coated wires, except when the angulations were set to 0o in the 0.016-inch NiTi wires (p < 0.05). Conclusions: Although the frictional forces of the coated wires with regards to aesthetics were equal to or greater than those of the uncoated wires, a study under similar conditions regarding the oral cavity is needed in order to establish the clinical implications.",
author = "Yunmi Kim and Cha, {Jung Yul} and ChungJu Hwang and Yu, {Hyung Seog} and Tahk, {Seon Gun}",
year = "2014",
month = "1",
day = "1",
doi = "10.4041/kjod.2014.44.4.157",
language = "English",
volume = "44",
pages = "157--167",
journal = "Korean Journal of Orthodontics",
issn = "2234-7518",
publisher = "Korean Association of Orthodontists",
number = "4",

}

Comparison of frictional forces between aesthetic orthodontic coated wires and self-ligation brackets. / Kim, Yunmi; Cha, Jung Yul; Hwang, ChungJu; Yu, Hyung Seog; Tahk, Seon Gun.

In: Korean Journal of Orthodontics, Vol. 44, No. 4, 01.01.2014, p. 157-167.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Comparison of frictional forces between aesthetic orthodontic coated wires and self-ligation brackets

AU - Kim, Yunmi

AU - Cha, Jung Yul

AU - Hwang, ChungJu

AU - Yu, Hyung Seog

AU - Tahk, Seon Gun

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Objective: The purpose of this study was to evaluate the clinical efficacy of polymer- and rhodium-coated wires compared to uncoated wires by measuring the frictional forces using self-ligation brackets. Methods: 0.016-inch nickel titanium (NiTi) wires and 0.017 × 0.025-inch stainless steel (SS) wires were used, and the angulations between the brackets and wires were set to 0o, 5o, and 10°. Upper maxillary premolar brackets (Clippy-C®) with a 0.022-inch slot were selected for the study and a tensile test was performed with a crosshead speed of 5 mm/min. The maximum static frictional forces and kinetic frictional forces were recorded and compared. Results: The maximum static frictional forces and the kinetic frictional forces of coated wires were equal to or higher than those of the uncoated wires (p < 0.05). The maximum static frictional forces of rhodium-coated wires were significantly higher than those of polymer-coated wires when the angulations between the brackets and wires were set to (i) 5o in the 0.016-inch NiTi wires and (ii) all angulations in the 0.017 × 0.025-inch SS wires (p < 0.05). The kinetic frictional forces of rhodium-coated wires were higher than those of polymer-coated wires, except when the angulations were set to 0o in the 0.016-inch NiTi wires (p < 0.05). Conclusions: Although the frictional forces of the coated wires with regards to aesthetics were equal to or greater than those of the uncoated wires, a study under similar conditions regarding the oral cavity is needed in order to establish the clinical implications.

AB - Objective: The purpose of this study was to evaluate the clinical efficacy of polymer- and rhodium-coated wires compared to uncoated wires by measuring the frictional forces using self-ligation brackets. Methods: 0.016-inch nickel titanium (NiTi) wires and 0.017 × 0.025-inch stainless steel (SS) wires were used, and the angulations between the brackets and wires were set to 0o, 5o, and 10°. Upper maxillary premolar brackets (Clippy-C®) with a 0.022-inch slot were selected for the study and a tensile test was performed with a crosshead speed of 5 mm/min. The maximum static frictional forces and kinetic frictional forces were recorded and compared. Results: The maximum static frictional forces and the kinetic frictional forces of coated wires were equal to or higher than those of the uncoated wires (p < 0.05). The maximum static frictional forces of rhodium-coated wires were significantly higher than those of polymer-coated wires when the angulations between the brackets and wires were set to (i) 5o in the 0.016-inch NiTi wires and (ii) all angulations in the 0.017 × 0.025-inch SS wires (p < 0.05). The kinetic frictional forces of rhodium-coated wires were higher than those of polymer-coated wires, except when the angulations were set to 0o in the 0.016-inch NiTi wires (p < 0.05). Conclusions: Although the frictional forces of the coated wires with regards to aesthetics were equal to or greater than those of the uncoated wires, a study under similar conditions regarding the oral cavity is needed in order to establish the clinical implications.

UR - http://www.scopus.com/inward/record.url?scp=84904999518&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84904999518&partnerID=8YFLogxK

U2 - 10.4041/kjod.2014.44.4.157

DO - 10.4041/kjod.2014.44.4.157

M3 - Article

AN - SCOPUS:84904999518

VL - 44

SP - 157

EP - 167

JO - Korean Journal of Orthodontics

JF - Korean Journal of Orthodontics

SN - 2234-7518

IS - 4

ER -