Figure 4From: Effect of chlorhexidine-containing prophylactic agent on the surface characterization and frictional resistance between orthodontic brackets and archwires: an in vitro studyAFM observations of the Ni-Ti archwire. (a) As-received Ni-Ti archwire, (b) after 1.5-h immersion in the artificial saliva, (c) after 1.5-h immersion in the chlorhexidine mouthrinse. Scanning area is 30 × 30 μm.Back to article page