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  • Title: Hyaluronic Acid as an adjunct after scaling and root planing: a prospective randomized clinical trial.
    Author: Eick S, Renatus A, Heinicke M, Pfister W, Stratul SI, Jentsch H.
    Journal: J Periodontol; 2013 Jul; 84(7):941-9. PubMed ID: 23088524.
    Abstract:
    BACKGROUND: The study is designed to determine the effect on clinical variables, subgingival bacteria, and local immune response brought about by application of hyaluronan-containing gels in early wound healing after scaling and root planing (SRP). METHODS: In this randomized clinical study, data from 34 individuals with chronic periodontitis were evaluated after full-mouth SRP. In the test group (n = 17), hyaluronan gels in two molecular weights were additionally applied during the first 2 weeks after SRP. The control group (n = 17) was treated with SRP only. Probing depth (PD) and clinical attachment level (CAL) were recorded at baseline and after 3 and 6 months, and subgingival plaque and sulcus fluid samples were taken for microbiologic and biochemical analysis. RESULTS: In both groups, PD and CAL were significantly reduced (P <0.001). The changes in PD and the reduction of the number of pockets with PD ≥5 mm were significantly higher in the test group after 3 (P = 0.014 and 0.021) and 6 (P = 0.046 and 0.045) months. Six months after SRP, the counts of Treponema denticola were significantly reduced in both groups (both P = 0.043), as were those of Campylobacter rectus in the test group only (P = 0.028). Prevotella intermedia and Porphyromonas gingivalis increased in the control group. CONCLUSION: The adjunctive application of hyaluronan may have positive effects on PD reduction and may prevent recolonization by periodontopathogens.
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