Clinical trials

Periodontitis is characterized by the progressive destruction of tooth-supporting tissues and may lead to the formation of intrabony periodontal defects. Regenerative periodontal surgery aims to promote the reconstruction of the periodontal attachment apparatus and reduce residual defect dimensions. Albumin platelet-rich fibrin (Alb-PRF) is an autologous blood-derived biomaterial that combines an albumin-based matrix with platelet-rich fibrin components. This randomized controlled clinical trial will evaluate the clinical and radiographic effects of Alb-PRF as an adjunct to regenerative periodontal surgery in patients with periodontitis-associated intrabony defects. Twenty-four participants will be randomly allocated to two parallel treatment groups. Both groups will undergo regenerative periodontal surgery involving defect debridement, root surface conditioning with EDTA, and placement of an allogeneic bone graft. In the experimental group, Alb-PRF will additionally be applied to the intrabony defect. The primary outcome will be clinical attachment level gain at 6 months. Secondary outcomes will include probing depth, radiographic defect fill, early wound healing, postoperative pain, oral health-related quality of life, and adverse events. Participants will be followed for 9 months.

Periodontitis is an inflammatory disease that damages the tissues supporting the teeth. Nonsurgical periodontal therapy is the standard initial treatment, but deep periodontal pockets may remain after treatment. Albumin platelet-rich fibrin (Alb-PRF) is an autologous material prepared from the participant's own blood and applied locally to support periodontal healing. The main purpose of this study is to determine whether applying Alb-PRF into periodontal pockets in addition to nonsurgical periodontal therapy provides greater clinical improvement than nonsurgical periodontal therapy alone. The study will also evaluate whether the additional application of Alb-PRF affects the levels of selected bacteria associated with periodontitis. This randomized split-mouth study will include 24 adults with periodontitis. In each participant, matched periodontal sites will be randomly assigned to receive either nonsurgical periodontal therapy alone or nonsurgical periodontal therapy followed by an intrapocket application of Alb-PRF. Clinical periodontal measurements will be recorded at baseline and at 1, 3, and 6 months. Subgingival plaque samples will be collected from the same sites at baseline and 30 days after treatment. The primary outcome is the reduction in periodontal probing depth from baseline to 3 months.