Calculate Archwire-Bracket Play

This app allows you to calculate the amount of play and the critical contact angle for any archwire-bracket slot (size) combination.

archwire bracket play.png

Typically, total-play = 2 x critical contact angle.

References:

1. Arreghini A, Lombardo L, Mollica F, Siciliani G. Torque expression capacity of 0.018 and 0.022 bracket slots by changing archwire material and cross section. Prog Orthod. 2014 Sep 25;15(1):53. doi: 10.1186/s40510-014-0053-x. PMID: 25329505; PMCID: PMC4176837.

2. Amy Archambault, Ryan Lacoursiere, Hisham Badawi, Paul W. Major, Jason Carey, Carlos Flores-Mir; Torque Expression in Stainless Steel Orthodontic Brackets: A Systematic Review. Angle Orthod1 January 2010; 80 (1): 201–210. doi: https://doi.org/10.2319/080508-352.1

3.   Joch, A., Pichelmayer, M., & Weiland, F. (2010). Bracket Slot and Archwire Dimensions: Manufacturing Precision and Third Order Clearance. Journal of Orthodontics, 37(4), 241–249. https://doi.org/10.1179/14653121043182