A randomized clinical trial on the clinical and microbiological efficacy of a xanthan gel with chlorhexidine for subgingival use.

Clinical Oral Investigations
Paula MatesanzMariano Sanz

Abstract

The main indication of the adjunctive use of local antimicrobials lies around situations in which the outcome of non-surgical mechanical treatment results in a limited number of residual pockets. The purpose of this investigation was to evaluate the clinical and microbiological effects of the subgingival application of a xanthan-based 1.5% chlorhexidine (CHX) gel (Xan-CHX), adjunctive to scaling and root planing (SRP) in localized periodontitis. Periodontitis patients with four to ten residual (after conventional SRP) or relapsing (during supportive periodontal treatment) pockets were recruited and randomized to receive SRP plus the subgingival application of (Xan-CHX) or SRP plus a placebo gel. Supragingival plaque, bleeding on probing (BOP), probing pocket depth (PPD), and clinical attachment level were evaluated with a computerized probe at baseline, and after 1, 3, and 6 months. Subgingival samples were also collected for the microbiological analysis. Statistical analysis used ANOVA and chi-square tests. Overall, the clinical results were better in the test group, with significant changes in BOP (between baseline and 3 months) and with a significant increase in the proportion of shallow pockets (1-3 mm) at 6 months. These r...Continue Reading

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