Assessment of Nickel and Chromium Level in Gingival Crevicular Fluid in Patients Undergoing Orthodontic Treatment with or without Fluoridated Tooth Paste.

Background: Release of metallic ions, especially nickel and chromium, present in orthodontic fixed appliance attachments such as brackets and archwires has been a basis of concern in current years. The present study was conducted to assess nickel and chromium level in gingival crevicular fluid in patients undergoing orthodontic treatment.

Materials And Methods: Forty patients undergoing fixed orthodontic treatment were divided into 2 groups of 20 each.