Background:

there are few studies that evaluate the subgingival application of antimicrobials in adult periodontitis.

Objective:

to evaluate the effectiveness of antimicrobials as contributing for scaling and root planing in the treatment of mild and moderate periodontitis in adults.

Methods:

quasi-experimental study of therapeutic intervention, carried out at the Santiago de Cuba Stomatological Clinic, between November 2018 and September 2021, on 144 patients diagnosed with mild and moderate chronic periodontitis. Using the simple random probabilistic method, three groups with 48 members were formed voluntarily. The control group treated with scaling and root planing and two study groups in which, in addition, a subgingival concentration of tetracycline and azithromycin, respectively, was applied. The patients were examined and evaluated at seven days, one month and three months. ANOVA analysis of variance was used to evaluate the equality of means and the chi-square test for the effectiveness of healing with 95% reliability.

Results:

there was a reduction in probing depth and greater gain in clinical attachment in the three groups, but in favor of the study groups. All therapies were effective, but group two (RAR + Tetracycline) obtained a greater cure with 97.9%.

Conclusions:

subgingival applications of tetracycline and azithromycin were effective as adjuvants for scaling and root planing in mild and moderate periodontitis in adults; Tetracycline achieved greater improvement in clinical parameters, decreased probing depth, gain in clinical attachment, and shorter healing time.

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