Ditch, Dustin2018-09-212018-09-212018-07https://hdl.handle.net/11299/200142University of Minnesota M.S. thesis. July 2018. Major: Dentistry. Advisor: Thorsten Gruenheid. 1 computer file (PDF); v, 54 pages.Objective: Comparing resistance to sliding (RS) between esthetic brackets under an increasing applied moment. Materials and Methods: Three different brackets were mounted on a testing apparatus to simulate canine retraction using sliding mechanics and application of a moment on 0.019”x0.025” nickel-titanium and stainless steel archwires. The samples examined were: ClarityTM Advanced, and ClarityTM metal-reinforced, and VictoryTM series brackets. The RS at calculated moments of 1000 g-mm, 2000 g-mm, and 3000 g-mm was determined and compared between the various brackets. Descriptive measures and one-way analysis of variance were used to calculate means and statistical differences among the bracket types. Results:  No significant difference in RS between the brackets was found on nickel-titanium arch wires. The ClarityTM Advanced bracket had significantly greater (P < 0.05) RS than the other brackets tested at all three calculated moments on stainless steel archwires. Conclusion: ClarityTM Advanced brackets had significantly higher RS on stainless steel archwires.enClarity Advanced Ceramic BracketResistance to SlidingThesis or Dissertation