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A section of soft tissue surgically separated from underlying bone and removed or repositioned to eliminate periodontal pockets or to correct mucogingival defects.
See also: flap
per·i·o·don·tal flap(perē-ŏ-dontăl flap)
Procedure in which a portion of periodontal tissue is partially removed to allow access to alveolar bone and tooth root surface for deposit removal or for rearranging the soft tissue.