Efficacy of locally-delivered 1% metformin gel in the treatment of intrabony defects in patients with chronic periodontitis: a randomized, controlled clinical trial
Abstract
OBJECTIVE: Metformin (MF), used for the treatment of type 2 diabetes mellitus, has shown to possess properties favoring osteoblastic proliferation. The present study was designed to investigate the effectiveness of MF 1% gel as an adjunct to scaling and root planing in the treatment of intrabony defects in patients with chronic periodontitis.
METHODS: The study comprised 65 individuals divided into two groups: 1% MF with SRP and placebo gel with SRP. Clinical parameters were evaluated at baseline, 3 months, and 6 months; they included plaque index, modified sulcus bleeding index, probing depth (PD), and clinical attachment level (CAL). Intrabony defect depth (IBD) was evaluated at the end of 6 months using computer-aided software.
RESULTS: The mean PD reduction, CAL gain, and IBD depth reduction were found to be greater in the MF group than in the placebo group at all visits. The percentage of defect depth reduction was significantly greater in the MF group (26.8 ± 5.52%) than in the placebo sites (4.79 ± 2.30%, P < 0.001).
CONCLUSION: One percent MF was found to significantly improve clinical and radiographic parameters in intrabony defects in patients with chronic periodontitis.
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 65 participants or records.
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