A health plan allowing the member to choose to receive a service from a participating or non-participating provider, usually with different benefits levels associated with the use of participating providers.
A term used to describe a single area, position, or locus. For periodontal procedures, an area of soft tissue recession on a single tooth or an osseous defect adjacent to a single tooth; also used to indicate soft tissue defects and/or osseous defects in edentulous tooth positions.