Comparison of the Load-Deflection Characteristics of Aesthetic and Conventional Super Elastic Ni-Ti Orthodontic Arch Wires in Conventional and Metal-Insert Ceramic Brackets
| Autor: | Hosseinagha Aghili, Soghra Yassaei, Neda Joshan, Nemat Hoseini |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Journal of Clinical and Diagnostic Research, Vol 10, Iss 12, Pp ZC06-ZC09 (2016) |
| Druh dokumentu: | article |
| ISSN: | 2249-782X 0973-709X |
| DOI: | 10.7860/JCDR/2016/20036.8995 |
| Popis: | 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. Oneway ANOVA and Tukey tests were used at p |
| Databáze: | Directory of Open Access Journals |
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