Study on the Friction Generated by Aesthetic Arches Covered with Rhodium
Introduction: Aesthetic metal archwires are more discreet than conventional metal archwires. One of the most commonly used aesthetic metal archwires in orthodontics consists of a rhodium-coated Nickel Titanium (NiTi) alloy core. Rhodium is an extremely hard metal and has a high reflectance, making t...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Mexicana de Ortodoncia |
| Idioma: | español inglés |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/88062 |
| Acceso en línea: | https://revistas.unam.mx/index.php/rmo/article/view/88062 |
| Access Level: | acceso abierto |
| Palabra clave: | arcos estéticos frcción Rodio aesthetic arches friction Rhodium |
| Sumario: | Introduction: Aesthetic metal archwires are more discreet than conventional metal archwires. One of the most commonly used aesthetic metal archwires in orthodontics consists of a rhodium-coated Nickel Titanium (NiTi) alloy core. Rhodium is an extremely hard metal and has a high reflectance, making the NITi metal archwire with rhodium coating an aesthetic solution for orthodontic treatment. Objective: To present the evaluation of the friction generated on three types of arches. Materials and Methods: An experimental design was performed using 30 archwires of 0.016" x 0.022" of three different characteristics: NiTi without esthetic coating, NiTi with rhodium coating, and NiTi with Teflon coating. These archwires were placed in 20 experimental models made of acrylic to which 40 brackets In-Ovation R ® (Dentsply Sirona) slot 0.018x 0.025" were placed. To simulate oral conditions the archwires were pulled at different distances: 3mm, 6mm, 7mm, and 8mm at a speed of 10 mm/min in the deflection testing machine using artificial saliva at 25°C as lubricant and the friction generated was measured. Results: The results showed statistically significant differences in the friction generated by uncoated NiTi archwires when compared to NiTi with rhodium and Teflon coating (p>0.0001) Conclusions: Orthodontic archwires with rhodium coating are more aesthetic and do not alter the original dimensions or properties of the wires. Rhodium coating generates less friction in orthodontic tooth movement. |
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