Fiberotomy
A fiberotomy or pericision is an orthodontic surgical procedure designed to sever the gingival fibers around a tooth. It usually reduces the tendency to relapse of tooth rotations corrected by dental braces or other treatments. The most frequently encountered post-orthodontic problem is the retention of re-established tooth position. Relapse (drifting of the tooth back to its position prior to orthodontic correction) may occur anywhere, but it is often associated with teeth that have undergone rotation (twisting) as part of the orthodontic therapy.