January 16, 1991
Fine light force elastomeric thread is applying traction to the first bicuspid.
September 19, 1991
The thread was replaced five times. There were no archwire changes.
Because this patient would not wear Class II elastics, his upper second bicuspids were extracted. During the eight months of treatment thereafter, the following occurred:
• 5mm distal movement of the first bicuspids
• perfect translation of teeth along the archwire
• overjet reduction from 8mm to under 3mm
• no appreciable steepening of the occlusal plane if any
• only 2mm mesial movement of the molars
• 4mm of distal movement of the canines
• no increase in overbite
Treatment & Clinical Photography by: Dr. G. Herbert Hanson