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  • Title: The efficacy of 0.12% chlorhexidine versus 0.12% chlorhexidine plus hyaluronic acid mouthwash on healing of submerged single implant insertion areas: a short-term randomized controlled clinical trial.
    Author: Genovesi A, Barone A, Toti P, Covani U.
    Journal: Int J Dent Hyg; 2017 Feb; 15(1):65-72. PubMed ID: 26084554.
    Abstract:
    OBJECTIVES: The study was performed to evaluate the incidence of post-surgical adverse events at submerged implant sites as well as the antiplaque, antigingivitis and antistaining effects in the entire dentition of patients treated with two mouthwashes. METHODS: The present randomized controlled clinical study considered 40 patients subjected to dental implant treatment. Two 0.12% chlorhexidine mouthwashes were compared for 15 days: one with 0.1% hyaluronic acid (CHX⊗HYL group) and one without it (CHX group). Surgical outcome variables, and plaque, gingival, and staining indexes were recorded. RESULTS: Significant differences were found between the two rinses regarding the presence of oedema within 2 days after surgery (20% for the CHX⊗HYL group and 78% for the CHX group). No other significant differences were recorded between the two mouthwashes. No intergroup differences in plaque, staining and gingivitis indexes were registered. The intragroup analysis revealed that for the plaque and gingival indexes, the differences between the baseline values (before surgery) and those at 15 days were all found to be significant just for CHX⊗HYL rinse, with final values ranging from 0.18 to 0.23 for the plaque index and from 0.06 to 0.07 for the gingival index. The staining index increased for both mouthwash types with significant results (with final value of 0.19 and 0.31 for CHX⊗HYL and CHX groups, respectively). CONCLUSIONS: In the sites of patients subjected to dental implant placement, an additional anti-oedematigenous effect in early healing seemed to be disclosed for 0.12% CHX⊗HYL mouthwash. Regarding antiplaque and antigingivitis activities, HYL seemed to be ineffective.
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