(2016) Comparison of the load-deflection characteristics of aesthetic and conventional super elastic Ni-Ti orthodontic arch wires in conventional and metal-insert ceramic brackets. Journal of Clinical and Diagnostic Research. ZC06-ZC09.
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Abstract
Introduction: Coated arch wires and ceramic brackets have been introduced to improve aesthetics during orthodontic treatment. Aim: The aim of this study was to determine the effects of coating on the physical properties of aesthetic orthodontic wires. Material and Methods: Five round wires (0.016 inch) were obtained from each of three brands: conventional uncoated super elastic Nickel Titanium (Ni-Ti) (Rematitian Lite; Dentaurum, Ispringen, Germany), HUBIT (Teflon Coated, Korea), G&H (Epoxy Coated, Greenwood, Indiana, USA) which belonged to maxillary arch. Two types of standard ceramic brackets (conventional and metal-insert type, Ortho Technology, Tampa, Florida, USA) with the slot size of 0.022�0.028 inches were used. A simulation device was fabricated to resemble a model of human dental arch and each of the specimen was tested in three-point bending test. The test was conducted in the buccolingual plane with crosshead speed of 1mm/minute pressure from metal pole. Each sample was loaded until a deflection of 3.0 mm was produced. The mean values of maximum loading force, unloading force and clinical plateau length were recorded. One-way ANOVA and Tukey tests were used at p<0.05. Results: Uncoated Ni-Ti arch wire showed higher mean values of maximum loading and unloading force than that of coated aesthetic wires similar to ceramic brackets while G&H wire and metal-insert ceramic brackets presented the lowest values. The longest clinical plateau length was observed in G&H wires and metal-insert ceramic bracket. Conclusion: The coating processes for HUBIT (Teflon Coated, Korea), G&H (Epoxy Coated, Greenwood, Indiana, USA) wires might influence bending behaviour which can cause decrease in loading and unloading force. © 2016, Journal of Clinical and Diagnostic Research. All rights reserved.
Item Type: | Article |
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Page Range: | ZC06-ZC09 |
Journal or Publication Title: | Journal of Clinical and Diagnostic Research |
Volume: | 10 |
Number: | 12 |
Publisher: | Journal of Clinical and Diagnostic Research |
Depositing User: | ms soheila Bazm |
URI: | http://eprints.ssu.ac.ir/id/eprint/9608 |
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