Polynucleotide + Hyaluronic Acid Gel With Xenogeneic Graft for Intrabony Periodontal Defects

Over the last 30 years, the prevalence of periodontitis (PE) has increased substantially, including among younger populations, highlighting the need to improve the management of this condition as a chronic disease and to develop techniques that favor its control and stability in the short and long term. After non-surgical periodontal therapy (NSPT), the first phase of PE treatment, residual periodontal pockets may persist, often associated with intraosseous defects, which compromise the tooth's prognosis and are associated with disease progression and increased treatment complexity. Surgical treatment of intrabony defects often results in the formation of long junctional epithelium, weakly attached to the root surface, since true regeneration of periodontal tissues is an unpredictable event and depends on complex biological processes. In recent decades, various biomaterials have been proposed as aids to open-flap debridement (OFD) in the surgical treatment of intrabony defects, with the aim of promoting periodontal regeneration, enhancing clinical results and favoring treatment prognosis. Recently, the combination of polynucleotides (PN) and hyaluronic acid (HA) has emerged as a promising auxiliary strategy to promote periodontal regeneration, due to its biological potential in stimulating cell growth and increasing cell viability. The aim of this controlled, randomized, parallel-group clinical study is to compare OFD alone with its association with xenogenous bone graft or x…

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