TY - JOUR AU - Silvia Pop AU - Mircea Dudescu AU - Violeta Merie AU - Mariana Pacurar AU - Cristina Bratu PY - 2017/07/25 Y2 - 2024/03/28 TI - EVALUATION OF THE MECHANICAL PROPERTIES AND SURFACE TOPOGRAPHY OF AS-RECEIVED, IMMERSED AND AS-RETRIEVED ORTHODONTIC ARCHWIRES JF - Medicine and Pharmacy Reports JA - Medicine and Pharmacy Reports VL - 90 IS - 3 SE - Original Research DO - 10.15386/cjmed-729 UR - https://medpharmareports.com/index.php/mpr/article/view/729 AB - Background and aims. This experimental study mainly aims at comparing the most important mechanical properties of the new orthodontic archwires, those immersed in fluorinated solution, the as-retrieved ones and  the intra-oral used ones.Methods. A total of 270 arch wires were tested, using tensile testing and three-point bending tests. The tested archwires were made of Stainless Steel, Nickel Titanium, Beta-Titanium and physiognomic covered Nickel Titanium. The tested archwires were subjected to three types of treatments: immersion into fluorinated solution, immersion into carbonated drinks and intra-oral use.Results. The immersion caused variations of the activation and deactivation forces of all arch wires. The most affected arch wires, in terms of bending characteristics,  were the intra-oral used ones.Conclusions. The alteration of mechanical properties of the orthodontic arch wires by their immersion into fluorinated solutions and soft drinks could not be statistically demonstrated. ER -