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Clin Oral Investig ; 27(1): 387-398, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36305963

ABSTRACT

OBJECTIVES: This double-blind, randomized, placebo-controlled clinical trial evaluated the adjuvant effects of Bifidobacterium lactis HN019 on the treatment of plaque-induced generalized gingivitis. MATERIALS AND METHODS: Sixty patients were submitted to professional supragingival scaling and prophylaxis. They were randomly assigned to test (probiotic lozenges containing B. lactis HN019, n = 30) or control (placebo lozenges, n = 30) groups. Lozenges were consumed twice a day for 8 weeks. Bleeding on probing (BoP), Gingival Index (GI), Plaque Index (PI), probing depth (PD), and clinical attachment level (CAL) were evaluated at baseline and after 2 and 8 weeks. Gingival crevicular fluid (GCF) was collected at baseline and at 8 weeks for analysis of the inflammatory mediators IL-1ß, IL-1α, IL-8, MCP-1, and MIP-1ß. Data were statistically analyzed (p < 0.05). RESULTS: After 8 weeks, both groups showed reduction in the percentage of PI, with no significant difference between groups (p = 0.7423). The test group presented a lower percentage of BoP and a higher percentage of sites with GI ≤ 1 when compared with the control group at the end of the study (p < 0.0001). At 8 weeks, the test group had a greater number of patients without generalized gingivitis than the control group (20 and 11 patients, respectively; p < 0.05). The test group presented significantly lower levels of IL-1α, IL-1ß, and MCP-1 in GCF than the control group at the end of the study (p < 0.05). CONCLUSION: The adjunct use of B. lactis HN019 promotes additional clinical and immunological benefits in the treatment of generalized gingivitis. CLINICAL RELEVANCE: B. lactis HN019 can be an efficient and side-effect-free adjunct strategy in the treatment of generalized gingivitis.


Subject(s)
Bifidobacterium animalis , Dental Plaque , Gingivitis , Plaque, Atherosclerotic , Humans , Gingivitis/therapy , Dental Scaling , Dental Plaque/therapy , Dental Plaque/microbiology , Administration, Oral , Gingival Crevicular Fluid
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