{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T14:58:13Z","timestamp":1791212293676,"version":"4.1.0"},"reference-count":47,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2016,12,1]],"date-time":"2016-12-01T00:00:00Z","timestamp":1480550400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[2016,12]]},"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> Platelet\u2010rich fibrin (PRF) is a reservoir of concentrated platelets that provides a pool of biologic growth\u2010promoting factors and cytokines, which help in mediating regeneration of lost bone and soft tissue maturation. Alendronate (ALN), a member of the amino\u2010bisphosphonate group, is known to enhance periodontal tissue regeneration by inhibiting osteoclast\u2010mediated bone resorption and promoting osteoblast\u2010mediated osteogenesis. The current intervention aims to assess combined effectiveness of PRF and 1% ALN with access therapy in intrabony defect (IBD) treatment in patients with chronic periodontitis (CP).<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Single IBDs in 90 patients were categorized into three groups: 1) group 1 had access therapy alone; 2) group 2 had access therapy with PRF; and 3) group 3 had access therapy with PRF + 1% ALN. Site\u2010specific plaque index, modified sulcus bleeding index, probing depth (PD), clinical attachment level (CAL), and gingival marginal level, included as parameters for clinical assessment, were evaluated before surgery at baseline and 9 months postoperatively. Percentage IBD depth reduction, assessed using radiographs, was evaluated at baseline and postoperatively.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> Compared with groups 1 and 2, group 3 exhibited significantly greater reduction in PD and gain in CAL postoperatively. Significantly greater IBD depth reduction was shown in group 3 (54.05% \u00b1 2.88%) compared with group 2 (46% \u00b1 1.89%) and group 1 (7.33% \u00b1 4.86%) postoperatively.<\/jats:p><jats:p><jats:bold>Conclusion:<\/jats:bold> Combined approach therapy of PRF + 1% ALN for IBD treatment in patients with CP showed better clinical parameter outcomes with greater IBD depth reduction compared with PRF and access therapy alone.<\/jats:p>","DOI":"10.1902\/jop.2016.150698","type":"journal-article","created":{"date-parts":[[2016,8,26]],"date-time":"2016-08-26T03:50:33Z","timestamp":1472183433000},"page":"1427-1435","source":"Crossref","is-referenced-by-count":45,"title":["Synergistic Approach Using Platelet\u2010Rich Fibrin and 1% Alendronate for Intrabony Defect Treatment in Chronic Periodontitis: A Randomized Clinical 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