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Partial- and full-mouth scaling and root planing in type 2 diabetic subjects: a 12-mo follow-up of clinical parameters and levels of cytokines and osteoclastogenesis-related factors.

BACKGROUND AND OBJECTIVE
The aim of this study was to evaluate the effects of full-mouth scaling and root planing (FMSRP) and partial-mouth scaling and root planing (PMSRP), up to 12 mo after treatment, on clinical parameters, and levels of cytokines and osteoclastogenesis-related factors in type 2 diabetic subjects with chronic periodontitis.


MATERIAL AND METHODS
Thirty-four subjects received FMSRP (n = 17) or PMSRP (n = 17) within 24 h or in multiple sessions, respectively. Clinical parameters and local levels of tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), interleukin (IL)-17, IL-23, IL-4, receptor activator of NF-β ligand and osteoprotegerin were assessed at baseline, and 3, 6 and 12 mo after therapies.


RESULTS
Clinical parameters improved after both therapies (p < 0.05), and no between-group differences were observed at any time-point (p > 0.05). Overall, there were no considerable differences in the local levels of the biomarkers studied between groups (p > 0.05). The IL-23 concentration and total amount of IFN-γ increased in the FMSRP group and decreased in the PMSRP group from baseline to 3 mo and from baseline to 6 mo, respectively (p < 0.05).


CONCLUSION
Both PMSRP and FMSRP promoted benefits in clinical parameters and showed a similar modulation of cytokines and osteoclastogenesis-related factors at 12 mo in type 2 diabetic subjects.