Comparative Evaluation of Frictional Properties, Load De fl ection Rate and Surface Characteristics of Different Coloured TMA Archwires - An Invitro Study

Aloysius, Arul Pradeep; Vijayalakshmi, Devaki; Deepika,; Nagachandran, K. S.; Kumar, N M. Vijay; Khan, Nayeemullah

doi:10.7860/jcdr/2015/16117.6962

Cited by 2 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[917] The lower load deflection properties of the colored TMA wires might be due to the etching and heating process, while coating is performed over archwire blanks. [9] There were no significant differences between HD and LF. The lower LDR may permit the usage of ion-implanted TMA in patients with periodontally compromised conditions.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of oral environment and prescribed fluoride mouthwashes on different types of TMA wires – An in-vivo study

et al. 2019

View full text Add to dashboard Cite

OBJECTIVE: The aim of this study was to investigate the effect of intraoral conditions and fluoride mouthwashes on mechanical properties and surface characteristics of different types of titanium molybdenum alloy (TMA) wires. MATERIALS AND METHODS: Three types of TMA wires of dimension 0.017” × 0.025” [1. Standard TMA (TMA), 2. ion-implanted, low-friction TMA (LF) and 3. Colored, Honey Dew TMA (HD)] were tested in three conditions as three groups; A) Control (as received), B) No fluoride (following intraoral use without fluoride) and C) Fluoride (following intraoral use with fluoride rinses). Surface roughness was evaluated using 3D Optical Profilometer. Three point bending tests were done to evaluate load deflection characteristics (LDR), ultimate tensile strength (UTS), and Young's modulus (E). Statistical evaluation was done using one-way analysis of variance (ANOVA), Bonferroni multiple comparison, and paired t -tests. RESULTS: Control group TMA exhibited significantly higher surface roughness, peak height, and LDR as well as lower UTS and E when compared to LF and HD ( P < 0.001). In nonfluoride group, the surface roughness and LDR increased significantly for all three types of wires ( P < 0.001). The UTS and E showed a significant decrease ( P < 0.001). Additional use of fluoride mouthwashes (fluoride group) further increased surface roughness and LDR and decreased the UTS and E ( P < 0.001). CONCLUSION: The ion-implanted LF/HD varieties had better surface smoothness, lower LDR, higher UTS, and higher E than standard TMA in the control group, pointing towards a better efficiency of these wires. Intraoral conditions significantly increased surface roughness and deteriorated mechanical properties of all types of TMA wires. With the use of daily fluoride mouthwashes, the deterioration was much worse.

show abstract

Section: Discussionmentioning

confidence: 99%

“…[6] Laboratory studies on colored TMA wires have shown that honey dew has the least surface roughness with aqua, purple, and violet producing frictional resistance values similar to standard TMA. [789]…”

Section: Introductionmentioning

confidence: 99%