title: Clinical evaluation of GEM 21S(®) and a collagen membrane with a coronally advanced flap as a root coverage procedure in the treatment of gingival recession defects: A comparative study.
abstract: OBJECTIVE
  Clinical evaluation of efficacy of rhPDGF-BB plus beta tricalcium phosphate (GEM 21S(®)) along with a collagen membrane in root coverage using a coronally advanced flap.
  
  
  METHODS
  This human case series evaluated the clinical outcome of rhPDGF-BB with beta-tricalcium phosphate (GEM 21S®) and a collagen membrane in the treatment of recession defects using a coronally advanced flap. Patients were followed postoperatively, and healing was evaluated at 1, 3, and 6 months, with recession depth as the primary outcome measure.
  
  
  RESULTS
  This pioneer case series revealed a favorable tissue response to GEM 21S® and collagen membrane from both clinical and esthetic point of view in regenerative periodontal surgery.
authors.affiliation: Department of Periodontology and Oral Implantology, Swami Devi Dyal Hospital and Dental College, Barwala, Distt. Panchkula, Haryana, India.
authors.forename: Preetinder
authors.initials: P
authors.lastname: Singh
authors.forename: D K
authors.initials: DK
authors.lastname: Suresh
keywords: Beta-tricalcium phosphate; coronally advanced flap; gingival recession; platelet-derived growth factor