Objective: Several epidemiologic studies have identified a greater incidence of periodontitis in patients with type 2 diabetes. Recent developments suggest that local delivery of antimicrobials into periodontal pockets improve periodontal health. The present study was designed to investigate the adjunctive effects of subgingivally delivered clarithromycin (CLM) (0.5% concentration) as an adjunct to scaling and root planing for treating chronic periodontitis in patients with well-controlled type 2 diabetes.
Methods: Sixty-three patients were categorized into two treatment groups: Group 1, scaling and root planing (SRP) plus 0.5% CLM; Group 2, SRP plus placebo gel. Clinical parameters were recorded at baseline, 1, 2, and 3 months; which included gingival index (GI), sulcus bleeding index (SBI), plaque index (PI), probing depth (PD), and periodontal attachment level (PAL).
Results: Both therapies resulted in significant improvements. Using a subject-based analysis, patients in Group 1 treated with SRP + CLM showed enhanced reductions in PI, GI, SBI, and PD, and gains in PAL (P < 0.001) over a period of 6 months as compared to Group 2.
Conclusion: Although both treatment strategies seemed to benefit the patients, the adjunctive use of 0.5% CLM as a controlled drug delivery system enhanced the clinical outcome.
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