Abstract
Introduction: Resveratrol (RSV) is a natural polyphenol with anti-inflammatory and antioxidant properties, widely studied for its therapeutic potential in chronic inflammatory diseases. Periodontitis is a multifactorial condition characterized by the progressive destruction of tooth-supporting tissues, resulting from an exacerbated immune response and the accumulation of reactive oxygen species, and in this context RSV emerges as a potential modulator of the inflammatory response. Methodology: An integrative review of preclinical literature was conducted to evaluate the effects of RSV on the progression of experimental periodontitis in animal models, with emphasis on alveolar bone loss (ABL) and the molecular mechanisms involved. The search was carried out in the PubMed and LILACS databases, following PRISMA 2020 guidelines, using the descriptors “periodontitis,” “periodontal disease,” and “resveratrol.” In vivo studies that used ligature to induce the disease, with standardized RSV administration and ABL assessment, were included. Results and Discussion: Of the 170 articles initially identified, 11 met the inclusion criteria, all using rats with ligature-induced periodontitis. RSV was administered orally, by gavage, or by injection, at doses ranging from 10 to 25 mg/kg, for periods between 7 and 70 days. Ten studies reported a significant reduction in ABL, associated with the modulation of inflammatory cytokines (IL-1β, IL-6, TNF-α, IL-17), increased IL-4 levels, and inhibition of the NF-κB, TLR4, p38 MAPK, and NADPH oxidase pathways. The therapeutic effect was also observed in models associated with diabetes, arthritis, osteoporosis, and cigarette smoke exposure, while only one study found no significant difference, possibly due to the short intervention period. Conclusions: RSV demonstrated a protective effect against alveolar bone loss through anti-inflammatory and antioxidant mechanisms, standing out as a promising adjuvant agent in periodontal therapy; however, randomized clinical trials are still needed to validate its efficacy, safety, optimal dosage, and molecular mechanisms in humans.
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