Regenerative Treatment for Recession Defects Using Purified Human Platelet-Derived Growth Factor-BB, Particulate...

Area of Science:

• Periodontology
• Regenerative Medicine
• Oral Surgery

Background:

• Periodontal recession defects involve loss of gingiva, periodontal ligament, alveolar bone, and cementum.
• Traditional treatments utilize soft-tissue grafting with autogenous or allograft materials for root coverage and defect repair.
• Existing methods primarily achieve periodontal repair rather than regeneration.

Observation:

• A case presentation details a technique using coronally advanced gingival flaps combined with a particulate carrier saturated with recombinant human platelet-derived growth factor-BB (rhPDGF-BB).
• Results demonstrated significant root coverage with excellent esthetics, including color and texture match.
• Radiographic and surgical reentry observations suggested increased alveolar bone thickness, indicative of appositional augmentation.

Findings:

• The combined flap and rhPDGF-BB technique, termed "recession regeneration," achieved substantial root coverage and esthetic outcomes.
• Histologic evidence from related studies confirms the potential for true periodontal regeneration (cementum, periodontal ligament, alveolar bone).
• Surgical reentry revealed significant regeneration of buccal alveolar bone over previously exposed root surfaces.

Implications:

• This technique offers a promising alternative for treating periodontal recession defects, potentially leading to periodontal regeneration.
• "Recession regeneration" may provide superior outcomes compared to conventional root coverage procedures lacking biologic modifiers or barrier membranes.
• The findings suggest a paradigm shift towards regenerative approaches in managing periodontal defects, enhancing functional and esthetic results.