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  • Title: A reentry study on the use of bovine porous bone mineral, GTR, and platelet-rich plasma in the regenerative treatment of intrabony defects in humans.
    Author: Camargo PM, Lekovic V, Weinlaender M, Vasilic N, Madzarevic M, Kenney EB.
    Journal: Int J Periodontics Restorative Dent; 2005 Feb; 25(1):49-59. PubMed ID: 15736778.
    Abstract:
    This study compared the clinical effectiveness of a combination therapy consisting of bovine porous bone mineral (BPBM), guided tissue regeneration (GTR), and platelet-rich plasma (PRP) in the regeneration of periodontal intrabony defects in humans. Twenty-eight paired intrabony defects were surgically treated using a split-mouth design. Defects were treated with BPBM, GTR, and PRP (experimental), or with open-flap debridement (control). Clinical parameters evaluated included changes in attachment level, pocket depth, and defect fill as revealed by reentry at 6 months. Preoperative pocket depths, attachment levels, and transoperative bone measurements were similar for the two groups. Postsurgical measurements taken at 6 months revealed that both treatment modalities significantly decreased pocket depth and increased clinical attachment and defect fill compared to baseline. The differences between the experimental and control groups were 2.22+/-0.39 mm on buccal and 2.12+/-0.34 mm on lingual sites for pocket depth, 3.05+/-0.51 mm on buccal and 2.88+/-0.46 mm on lingual sites for gain in clinical attachment, and 3.46+/-0.96 mm on buccal and 3.42+/-0.02 mm on lingual sites for defect fill. These differences between groups were statistically significant in favor of the experimental defects. The combined therapy was also clinically more effective than open-flap debridement. The superiority of the experimental group could not be attributed solely to the surgical intervention and was likely a result of the BPBM/GTR/ PRP application. Combining BPBM, GTR, and PRP was an effective modality of regenerative treatment for intrabony defects in patients with advanced periodontitis.
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