Suture

A suture in dental practice is a strand of material used to reapproximate soft tissue margins following an oral surgical procedure, supporting primary wound closure, hemostasis, and optimal healing. Sutures are placed after procedures involving incision and reflection of soft tissue, including surgical extractions, implant placement, periodontal flap surgery, and biopsy. The material is threaded through tissue edges using a curved needle and secured with knots that hold tissue in position until healing is sufficient. Common techniques include interrupted sutures, which close each wound section independently; continuous sutures using a single strand across the incision; and mattress sutures for deeper tissue approximation in areas subject to tension.

Suture materials are classified into two categories based on tissue behavior. Absorbable sutures, such as chromic gut, polyglycolic acid, and polyglactin, are degraded by the body over five to twenty-one days in the oral environment, eliminating the need for removal. Non-absorbable sutures, such as silk and nylon, retain tensile strength indefinitely and must be removed seven to fourteen days after placement. Material selection depends on the type of surgery, wound location and tension, desired duration of tissue support, and clinician preference. Absorbable sutures are generally preferred for routine oral surgical procedures to reduce patient visits and minimize suture retention risk.

In dental billing, suture placement is considered integral to the surgical procedure and is not separately billable. The fee for surgical extractions, periodontal flap procedures, implant placement, and other soft tissue surgeries includes wound closure. Submitting a separate suture charge constitutes unbundling, which payers identify and reject. However, suture removal is a distinct consideration: when non-absorbable sutures are placed by a referring surgeon and the patient returns to the general dentist for removal, this may be billable as a post-operative visit. Practices should maintain suture supplies as an operational cost factored into surgical procedure overhead.