Effect of thermoformed tray architecture on transfer accuracy of lingual brackets: A prospective clinical study
Fig 2
Workflow for deviation measurement.
The design file of the bracket body was aligned to the post-bonding scan. Each tooth was then aligned to its reference using only tooth-surface data, with a local bracket-based coordinate system defined at the bracket body. Deviations were obtained by expressing the target bracket in the reference tooth’s local coordinate system.