Comparison of retraction efficacy of titanium-molybdenum and titanium-niobium alloy wires – A prospective split-mouth study

Objectives: The study aimed to compare the efficacy of Titanium-Molybdenum (Ti-Mo) and Titanium-Niobium (Ti-Nb) alloy wires as retraction springs, by comparing: amount rate canine retraction, degree rotation, change in axial inclination canines, associated anchorage loss. Material Methods: All 17 participants (age: 18–25 years) be treated with first premolar extraction approach were assigned Ti-Mo Ti-Nb T-loop springs either upper quadrants randomly. Digital intraoral 3-D scans panoramic radiographs orthopantomagram (OPG) taken before (T 0 ) after 1 period (4 months). superimposition was performed using digital models OPG, changes position, angulation, loss compared between two groups. Results: There no significant difference treatment groups for all parameters pertaining maxillary that is, ( P = 0.72), canines 0.71), rotation 0.74), 0.13) well space closure 0.74). Conclusion: show a similar potency use mechanics orthodontic closure.